On Thu, 21 Mar 2019 23:27:46 +0100, Guido Trentalancia wrote:

I wonder if this might be due to a bug in the "USB Audio Driver for Alsa"?

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/soun...

https://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git/tree/sound/u...

More likely a buggy firmware of your USB audio device :)

From the driver implementation POV, both audio and MIDI devices are handled by individual endpoints, hence they shouldn't conflict.

Or another possibility would be some USB host side issue like the bandwidth. But it's a MIDI stream that is very low data rate, so this sounds also unlikely...

thanks,

Takashi

Guido

On the 20th of March 2019 at 21.47 Guido Trentalancia
<guido@trentalancia.com wrote:

Hello.

I am hitting a very serious bug (ALSA kernel driver or ALSA library)
when using the Hercules P32 DJ audio interface.

The sound is severely distorted during MIDI transfers.

To reproduce:

  + start playing something in a first console:

console1# AUDIODEV=hw:2,0 play audio.wav

  + the audio plays fine

  + now start "amidi" in a second console while the above track is still
    playing

console2# amidi -p hw:2,0,0 -d

  + the sound is now severely distorted (basically noise, with some hard-
    to-distinguish features resembling the original track) until "amidi"
    is
    interrupted !

Kernel versions tested: from 4.12 up to 5.0.2 (latest).

NOTES: Always reproducible. Same device is working fine on Windows.

The output from alsa-info.sh and lsusb -v follows.

upload=true&script=true&cardinfo=
!!################################
!!ALSA Information Script v 0.4.64
!!################################

!!Script ran on: Wed Mar 20 20:44:36 UTC 2019

!!Linux Distribution
!!------------------

!!DMI Information
!!---------------

Manufacturer: Acer
Product Name: Aspire 5745G
Product Version: V1.19
Firmware Version: V1.19
Board Vendor: Acer
Board Name: JV51_CP

!!ACPI Device Status Information
!!---------------

/sys/bus/acpi/devices/PNP0103:00/status 15
/sys/bus/acpi/devices/PNP0C0A:00/status 31
/sys/bus/acpi/devices/PNP0C0F:00/status 9
/sys/bus/acpi/devices/PNP0C0F:01/status 9
/sys/bus/acpi/devices/PNP0C0F:02/status 9
/sys/bus/acpi/devices/PNP0C0F:03/status 9
/sys/bus/acpi/devices/PNP0C0F:04/status 9
/sys/bus/acpi/devices/PNP0C0F:05/status 9
/sys/bus/acpi/devices/PNP0C0F:06/status 9
/sys/bus/acpi/devices/PNP0C0F:07/status 9

!!Kernel Information
!!------------------

Kernel release: 5.0.2
Operating System: GNU/Linux
Architecture: x86_64
Processor: unknown
SMP Enabled: Yes

!!ALSA Version
!!------------

Driver version: k5.0.2
Library version: 1.1.8
Utilities version: 1.1.8

!!Loaded ALSA modules
!!-------------------

snd_hda_intel
snd_hda_intel
snd_usb_audio

!!Sound Servers on this system
!!----------------------------

Pulseaudio:
Installed - Yes (/usr/bin/pulseaudio)
Running - No

Jack:
Installed - Yes (/usr/bin/jackd)
Running - No

!!Soundcards recognised by ALSA
!!-----------------------------

0 [MID ]: HDA-Intel - HDA Intel MID
HDA Intel MID at 0xb7100000 irq 27
1 [NVidia ]: HDA-Intel - HDA NVidia
HDA NVidia at 0xb3000000 irq 16
2 [DJ ]: USB-Audio - Hercules P32 DJ
Guillemot Corporation Hercules P32 DJ at usb-
0000:00:1d.0-1.4, full speed

!!PCI Soundcards installed in the system
!!--------------------------------------

00:1b.0 Audio device: Intel Corporation 5 Series/3400 Series Chipset
High Definition Audio (rev 05)
01:00.1 Audio device: NVIDIA Corporation GT216 HDMI Audio Controller
(rev a1)

!!Advanced information - PCI Vendor/Device/Subsystem ID's
!!-------------------------------------------------------

00:1b.0 0403: 8086:3b56 (rev 05)

Subsystem: 1025:035b
--
01:00.1 0403: 10de:0be2 (rev a1)
Subsystem: 1025:035a

!!Loaded sound module options
!!---------------------------

!!Module: snd_hda_intel
align_buffer_size : -1
bdl_pos_adj : -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-
1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
beep_mode :
N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N
enable :
Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y
enable_msi : -1
id :
(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(
null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(n
ull),(null),(null),(null),(null),(null),(null),(null),(null),(null),(nu
ll),(null)
index : -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-
1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
jackpoll_ms :
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
model :
(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(
null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(n
ull),(null),(null),(null),(null),(null),(null),(null),(null),(null),(nu
ll),(null)
patch :
(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(
null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(n
ull),(null),(null),(null),(null),(null),(null),(null),(null),(null),(nu
ll),(null)
pm_blacklist : Y
position_fix : -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-
1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
power_save : 0
power_save_controller : Y
probe_mask : -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-
1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
probe_only :
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
single_cmd : -1
snoop : -1

!!Module: snd_hda_intel
align_buffer_size : -1
bdl_pos_adj : -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-
1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
beep_mode :
N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N
enable :
Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y
enable_msi : -1
id :
(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(
null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(n
ull),(null),(null),(null),(null),(null),(null),(null),(null),(null),(nu
ll),(null)
index : -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-
1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
jackpoll_ms :
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
model :
(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(
null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(n
ull),(null),(null),(null),(null),(null),(null),(null),(null),(null),(nu
ll),(null)
patch :
(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(
null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(n
ull),(null),(null),(null),(null),(null),(null),(null),(null),(null),(nu
ll),(null)
pm_blacklist : Y
position_fix : -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-
1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
power_save : 0
power_save_controller : Y
probe_mask : -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-
1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
probe_only :
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
single_cmd : -1
snoop : -1

!!Module: snd_usb_audio
autoclock : Y
device_setup :
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
enable :
Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y
id :
(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(
null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(n
ull),(null),(null),(null),(null),(null),(null),(null),(null),(null),(nu
ll),(null)
ignore_ctl_error : N
index : -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-
1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
pid : -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-
1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
quirk_alias :
(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(
null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(n
ull),(null),(null),(null),(null),(null),(null),(null),(null),(null),(nu
ll),(null)
use_vmalloc : Y
vid : -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-
1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1

!!HDA-Intel Codec information
!!---------------------------
--startcollapse--

Codec: Realtek ALC269VB
Address: 0
AFG Function Id: 0x1 (unsol 1)
Vendor Id: 0x10ec0269
Subsystem Id: 0x1025035b
Revision Id: 0x100100
No Modem Function Group found
Default PCM:
rates [0x560]: 44100 48000 96000 192000
bits [0xe]: 16 20 24
formats [0x1]: PCM
Default Amp-In caps: N/A
Default Amp-Out caps: N/A
State of AFG node 0x01:
Power states: D0 D1 D2 D3 CLKSTOP EPSS
Power: setting=D0, actual=D0
GPIO: io=2, o=0, i=0, unsolicited=1, wake=0
IO[0]: enable=0, dir=0, wake=0, sticky=0, data=0, unsol=0
IO[1]: enable=0, dir=0, wake=0, sticky=0, data=0, unsol=0
Node 0x02 [Audio Output] wcaps 0x1d: Stereo Amp-Out
Control: name="Headphone Playback Volume", index=0, device=0
ControlAmp: chs=3, dir=Out, idx=0, ofs=0
Device: name="ALC269VB Analog", type="Audio", device=0
Amp-Out caps: ofs=0x57, nsteps=0x57, stepsize=0x02, mute=0
Amp-Out vals: [0x00 0x00]
Converter: stream=5, channel=0
PCM:
rates [0x560]: 44100 48000 96000 192000
bits [0xe]: 16 20 24
formats [0x1]: PCM
Node 0x03 [Audio Output] wcaps 0x1d: Stereo Amp-Out
Control: name="Speaker Playback Volume", index=0, device=0
ControlAmp: chs=3, dir=Out, idx=0, ofs=0
Amp-Out caps: ofs=0x57, nsteps=0x57, stepsize=0x02, mute=0
Amp-Out vals: [0x51 0x51]
Converter: stream=5, channel=0
PCM:
rates [0x560]: 44100 48000 96000 192000
bits [0xe]: 16 20 24
formats [0x1]: PCM
Node 0x04 [Vendor Defined Widget] wcaps 0xf00000: Mono
Node 0x05 [Vendor Defined Widget] wcaps 0xf00000: Mono
Node 0x06 [Audio Output] wcaps 0x211: Stereo Digital
Control: name="IEC958 Playback Con Mask", index=0, device=0
Control: name="IEC958 Playback Pro Mask", index=0, device=0
Control: name="IEC958 Playback Default", index=0, device=0
Control: name="IEC958 Playback Switch", index=0, device=0
Control: name="IEC958 Default PCM Playback Switch", index=0, device=0
Device: name="ALC269VB Digital", type="SPDIF", device=1
Converter: stream=5, channel=0
Digital:
Digital category: 0x0
IEC Coding Type: 0x0
PCM:
rates [0x5e0]: 44100 48000 88200 96000 192000
bits [0xe]: 16 20 24
formats [0x1]: PCM
Node 0x07 [Vendor Defined Widget] wcaps 0xf00000: Mono
Node 0x08 [Audio Input] wcaps 0x10011b: Stereo Amp-In
Amp-In caps: ofs=0x0b, nsteps=0x1f, stepsize=0x05, mute=1
Amp-In vals: [0x8b 0x8b]
Converter: stream=0, channel=0
SDI-Select: 0
PCM:
rates [0x560]: 44100 48000 96000 192000
bits [0xe]: 16 20 24
formats [0x1]: PCM
Connection: 1
0x23
Node 0x09 [Audio Input] wcaps 0x10011b: Stereo Amp-In
Control: name="Capture Volume", index=0, device=0
ControlAmp: chs=3, dir=In, idx=0, ofs=0
Control: name="Capture Switch", index=0, device=0
ControlAmp: chs=3, dir=In, idx=0, ofs=0
Device: name="ALC269VB Analog", type="Audio", device=0
Amp-In caps: ofs=0x0b, nsteps=0x1f, stepsize=0x05, mute=1
Amp-In vals: [0x00 0x00]
Converter: stream=1, channel=0
SDI-Select: 0
PCM:
rates [0x560]: 44100 48000 96000 192000
bits [0xe]: 16 20 24
formats [0x1]: PCM
Connection: 1
0x22
Node 0x0a [Vendor Defined Widget] wcaps 0xf00000: Mono
Node 0x0b [Audio Mixer] wcaps 0x20010b: Stereo Amp-In
Control: name="Mic Playback Volume", index=0, device=0
ControlAmp: chs=3, dir=In, idx=0, ofs=0
Control: name="Mic Playback Switch", index=0, device=0
ControlAmp: chs=3, dir=In, idx=0, ofs=0
Control: name="Beep Playback Volume", index=0, device=0
ControlAmp: chs=3, dir=In, idx=4, ofs=0
Control: name="Beep Playback Switch", index=0, device=0
ControlAmp: chs=3, dir=In, idx=4, ofs=0
Amp-In caps: ofs=0x17, nsteps=0x1f, stepsize=0x05, mute=1
Amp-In vals: [0x80 0x80] [0x80 0x80] [0x80 0x80] [0x80 0x80] [0x80
0x80]
Connection: 5
0x18 0x19 0x1a 0x1b 0x1d
Node 0x0c [Audio Mixer] wcaps 0x20010b: Stereo Amp-In
Amp-In caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
Amp-In vals: [0x00 0x00] [0x80 0x80]
Connection: 2
0x02 0x0b
Node 0x0d [Audio Mixer] wcaps 0x20010b: Stereo Amp-In
Amp-In caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
Amp-In vals: [0x00 0x00] [0x80 0x80]
Connection: 2
0x03 0x0b
Node 0x0e [Vendor Defined Widget] wcaps 0xf00000: Mono
Node 0x0f [Audio Mixer] wcaps 0x20010a: Mono Amp-In
Amp-In caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
Amp-In vals: [0x00] [0x80]
Connection: 2
0x02 0x0b
Node 0x10 [Vendor Defined Widget] wcaps 0xf00000: Mono
Node 0x11 [Vendor Defined Widget] wcaps 0xf00000: Mono
Node 0x12 [Pin Complex] wcaps 0x40000b: Stereo Amp-In
Control: name="Internal Mic Boost Volume", index=0, device=0
ControlAmp: chs=3, dir=In, idx=0, ofs=0
Amp-In caps: ofs=0x00, nsteps=0x03, stepsize=0x2f, mute=0
Amp-In vals: [0x00 0x00]
Pincap 0x00000020: IN
Pin Default 0x99a30930: [Fixed] Mic at Int ATAPI
Conn = ATAPI, Color = Unknown
DefAssociation = 0x3, Sequence = 0x0
Misc = NO_PRESENCE
Pin-ctls: 0x20: IN
Node 0x13 [Vendor Defined Widget] wcaps 0xf00000: Mono
Node 0x14 [Pin Complex] wcaps 0x40018d: Stereo Amp-Out
Control: name="Speaker Playback Switch", index=0, device=0
ControlAmp: chs=3, dir=Out, idx=0, ofs=0
Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
Amp-Out vals: [0x00 0x00]
Pincap 0x00010014: OUT EAPD Detect
EAPD 0x2: EAPD
Pin Default 0x99130110: [Fixed] Speaker at Int ATAPI
Conn = ATAPI, Color = Unknown
DefAssociation = 0x1, Sequence = 0x0
Misc = NO_PRESENCE
Pin-ctls: 0x40: OUT
Unsolicited: tag=00, enabled=0
Connection: 2
0x0c 0x0d*
Node 0x15 [Vendor Defined Widget] wcaps 0xf00000: Mono
Node 0x16 [Vendor Defined Widget] wcaps 0xf00000: Mono
Node 0x17 [Pin Complex] wcaps 0x40010c: Mono Amp-Out
Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
Amp-Out vals: [0x80]
Pincap 0x00000010: OUT
Pin Default 0x411111f0: [N/A] Speaker at Ext Rear
Conn = 1/8, Color = Black
DefAssociation = 0xf, Sequence = 0x0
Misc = NO_PRESENCE
Pin-ctls: 0x00:
Connection: 1
0x0f
Node 0x18 [Pin Complex] wcaps 0x40018f: Stereo Amp-In Amp-Out
Control: name="Mic Boost Volume", index=0, device=0
ControlAmp: chs=3, dir=In, idx=0, ofs=0
Amp-In caps: ofs=0x00, nsteps=0x03, stepsize=0x2f, mute=0
Amp-In vals: [0x00 0x00]
Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
Amp-Out vals: [0x80 0x80]
Pincap 0x00001734: IN OUT Detect
Vref caps: HIZ 50 GRD 80
Pin Default 0x03a19840: [Jack] Mic at Ext Left
Conn = 1/8, Color = Pink
DefAssociation = 0x4, Sequence = 0x0
Pin-ctls: 0x24: IN VREF_80
Unsolicited: tag=02, enabled=1
Connection: 1
0x0d
Node 0x19 [Pin Complex] wcaps 0x40008b: Stereo Amp-In
Amp-In caps: ofs=0x00, nsteps=0x03, stepsize=0x2f, mute=0
Amp-In vals: [0x00 0x00]
Pincap 0x00001724: IN Detect
Vref caps: HIZ 50 GRD 80
Pin Default 0x411111f0: [N/A] Speaker at Ext Rear
Conn = 1/8, Color = Black
DefAssociation = 0xf, Sequence = 0x0
Misc = NO_PRESENCE
Pin-ctls: 0x20: IN VREF_HIZ
Unsolicited: tag=00, enabled=0
Node 0x1a [Pin Complex] wcaps 0x40018f: Stereo Amp-In Amp-Out
Amp-In caps: ofs=0x00, nsteps=0x03, stepsize=0x2f, mute=0
Amp-In vals: [0x00 0x00]
Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
Amp-Out vals: [0x80 0x80]
Pincap 0x0000003c: IN OUT HP Detect
Pin Default 0x411111f0: [N/A] Speaker at Ext Rear
Conn = 1/8, Color = Black
DefAssociation = 0xf, Sequence = 0x0
Misc = NO_PRESENCE
Pin-ctls: 0x20: IN
Unsolicited: tag=00, enabled=0
Connection: 2
0x0c* 0x0d
Node 0x1b [Pin Complex] wcaps 0x40018f: Stereo Amp-In Amp-Out
Amp-In caps: ofs=0x00, nsteps=0x03, stepsize=0x2f, mute=0
Amp-In vals: [0x00 0x00]
Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
Amp-Out vals: [0x80 0x80]
Pincap 0x00000034: IN OUT Detect
Pin Default 0x411111f0: [N/A] Speaker at Ext Rear
Conn = 1/8, Color = Black
DefAssociation = 0xf, Sequence = 0x0
Misc = NO_PRESENCE
Pin-ctls: 0x20: IN
Unsolicited: tag=00, enabled=0
Connection: 2
0x0c* 0x0d
Node 0x1c [Vendor Defined Widget] wcaps 0xf00000: Mono
Node 0x1d [Pin Complex] wcaps 0x400000: Mono
Pincap 0x00000020: IN
Pin Default 0x4017992d: [N/A] Speaker at Ext N/A
Conn = Analog, Color = Pink
DefAssociation = 0x2, Sequence = 0xd
Misc = NO_PRESENCE
Pin-ctls: 0x20: IN
Node 0x1e [Pin Complex] wcaps 0x400381: Stereo Digital
Pincap 0x00000014: OUT Detect
Pin Default 0x03451120: [Jack] SPDIF Out at Ext Left
Conn = Optical, Color = Black
DefAssociation = 0x2, Sequence = 0x0
Misc = NO_PRESENCE
Pin-ctls: 0x40: OUT
Unsolicited: tag=00, enabled=0
Connection: 1
0x06
Node 0x1f [Vendor Defined Widget] wcaps 0xf00000: Mono
Node 0x20 [Vendor Defined Widget] wcaps 0xf00040: Mono
Processing caps: benign=0, ncoeff=25
Node 0x21 [Pin Complex] wcaps 0x40018d: Stereo Amp-Out
Control: name="Headphone Playback Switch", index=0, device=0
ControlAmp: chs=3, dir=Out, idx=0, ofs=0
Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
Amp-Out vals: [0x80 0x80]
Pincap 0x0000001c: OUT HP Detect
Pin Default 0x0321101f: [Jack] HP Out at Ext Left
Conn = 1/8, Color = Black
DefAssociation = 0x1, Sequence = 0xf
Pin-ctls: 0xc0: OUT HP
Unsolicited: tag=01, enabled=1
Connection: 2
0x0c* 0x0d
Node 0x22 [Audio Selector] wcaps 0x30010b: Stereo Amp-In
Amp-In caps: N/A
Amp-In vals: [0x00 0x00] [0x00 0x00] [0x00 0x00] [0x00 0x00] [0x00
0x00] [0x00 0x00] [0x00 0x00]
Connection: 7
0x18 0x19 0x1a 0x1b 0x1d 0x0b 0x12*
Node 0x23 [Audio Mixer] wcaps 0x20010b: Stereo Amp-In
Amp-In caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
Amp-In vals: [0x80 0x80] [0x80 0x80] [0x80 0x80] [0x80 0x80] [0x80
0x80] [0x80 0x80]
Connection: 6
0x18 0x19 0x1a 0x1b 0x1d 0x0b
Codec: Nvidia Generic
Address: 0
AFG Function Id: 0x1 (unsol 0)
Vendor Id: 0x10de000a
Subsystem Id: 0x10de0101
Revision Id: 0x100100
No Modem Function Group found
Default PCM:
rates [0x0]:
bits [0x0]:
formats [0x0]:
Default Amp-In caps: N/A
Default Amp-Out caps: N/A
State of AFG node 0x01:
Power states: D0 D1 D2 D3
Power: setting=D0, actual=D0
GPIO: io=0, o=0, i=0, unsolicited=0, wake=0
Node 0x04 [Audio Output] wcaps 0x72b1: 8-Channels Digital Stripe CP
Control: name="IEC958 Playback Con Mask", index=0, device=0
Control: name="IEC958 Playback Pro Mask", index=0, device=0
Control: name="IEC958 Playback Default", index=0, device=0
Control: name="IEC958 Playback Switch", index=0, device=0
Device: name="Generic Digital", type="HDMI", device=3
Converter: stream=0, channel=0
Digital: Enabled
Digital category: 0x0
IEC Coding Type: 0x0
PCM:
rates [0x7f0]: 32000 44100 48000 88200 96000 176400 192000
bits [0xe]: 16 20 24
formats [0x5]: PCM AC3
Unsolicited: tag=00, enabled=0
Node 0x05 [Pin Complex] wcaps 0x407381: 8-Channels Digital CP
Pincap 0x09000094: OUT Detect HBR HDMI DP
Pin Default 0x18560010: [Jack] Digital Out at Int HDMI
Conn = Digital, Color = Unknown
DefAssociation = 0x1, Sequence = 0x0
Pin-ctls: 0x40: OUT
Unsolicited: tag=01, enabled=1
Connection: 1
0x04
Codec: Nvidia Generic
Address: 1
AFG Function Id: 0x1 (unsol 0)
Vendor Id: 0x10de000a
Subsystem Id: 0x10de0101
Revision Id: 0x100100
No Modem Function Group found
Default PCM:
rates [0x0]:
bits [0x0]:
formats [0x0]:
Default Amp-In caps: N/A
Default Amp-Out caps: N/A
State of AFG node 0x01:
Power states: D0 D1 D2 D3
Power: setting=D0, actual=D0
GPIO: io=0, o=0, i=0, unsolicited=0, wake=0
Node 0x04 [Audio Output] wcaps 0x72b1: 8-Channels Digital Stripe CP
Control: name="IEC958 Playback Con Mask", index=1, device=0
Control: name="IEC958 Playback Pro Mask", index=1, device=0
Control: name="IEC958 Playback Default", index=1, device=0
Control: name="IEC958 Playback Switch", index=1, device=0
Device: name="Generic Digital", type="HDMI", device=7
Converter: stream=0, channel=0
Digital: Enabled
Digital category: 0x0
IEC Coding Type: 0x0
PCM:
rates [0x7f0]: 32000 44100 48000 88200 96000 176400 192000
bits [0xe]: 16 20 24
formats [0x5]: PCM AC3
Unsolicited: tag=00, enabled=0
Node 0x05 [Pin Complex] wcaps 0x407381: 8-Channels Digital CP
Pincap 0x09000094: OUT Detect HBR HDMI DP
Pin Default 0x18560010: [Jack] Digital Out at Int HDMI
Conn = Digital, Color = Unknown
DefAssociation = 0x1, Sequence = 0x0
Pin-ctls: 0x40: OUT
Unsolicited: tag=01, enabled=1
Connection: 1
0x04
Codec: Nvidia Generic
Address: 2
AFG Function Id: 0x1 (unsol 0)
Vendor Id: 0x10de000a
Subsystem Id: 0x10de0101
Revision Id: 0x100100
No Modem Function Group found
Default PCM:
rates [0x0]:
bits [0x0]:
formats [0x0]:
Default Amp-In caps: N/A
Default Amp-Out caps: N/A
State of AFG node 0x01:
Power states: D0 D1 D2 D3
Power: setting=D0, actual=D0
GPIO: io=0, o=0, i=0, unsolicited=0, wake=0
Node 0x04 [Audio Output] wcaps 0x72b1: 8-Channels Digital Stripe CP
Control: name="IEC958 Playback Con Mask", index=2, device=0
Control: name="IEC958 Playback Pro Mask", index=2, device=0
Control: name="IEC958 Playback Default", index=2, device=0
Control: name="IEC958 Playback Switch", index=2, device=0
Device: name="Generic Digital", type="HDMI", device=8
Converter: stream=0, channel=0
Digital: Enabled
Digital category: 0x0
IEC Coding Type: 0x0
PCM:
rates [0x7f0]: 32000 44100 48000 88200 96000 176400 192000
bits [0xe]: 16 20 24
formats [0x5]: PCM AC3
Unsolicited: tag=00, enabled=0
Node 0x05 [Pin Complex] wcaps 0x407381: 8-Channels Digital CP
Pincap 0x09000094: OUT Detect HBR HDMI DP
Pin Default 0x18560010: [Jack] Digital Out at Int HDMI
Conn = Digital, Color = Unknown
DefAssociation = 0x1, Sequence = 0x0
Pin-ctls: 0x40: OUT
Unsolicited: tag=01, enabled=1
Connection: 1
0x04
Codec: Nvidia Generic
Address: 3
AFG Function Id: 0x1 (unsol 0)
Vendor Id: 0x10de000a
Subsystem Id: 0x10de0101
Revision Id: 0x100100
No Modem Function Group found
Default PCM:
rates [0x0]:
bits [0x0]:
formats [0x0]:
Default Amp-In caps: N/A
Default Amp-Out caps: N/A
State of AFG node 0x01:
Power states: D0 D1 D2 D3
Power: setting=D0, actual=D0
GPIO: io=0, o=0, i=0, unsolicited=0, wake=0
Node 0x04 [Audio Output] wcaps 0x72b1: 8-Channels Digital Stripe CP
Control: name="IEC958 Playback Con Mask", index=3, device=0
Control: name="IEC958 Playback Pro Mask", index=3, device=0
Control: name="IEC958 Playback Default", index=3, device=0
Control: name="IEC958 Playback Switch", index=3, device=0
Device: name="Generic Digital", type="HDMI", device=9
Converter: stream=5, channel=0
Digital: Enabled
Digital category: 0x0
IEC Coding Type: 0x0
PCM:
rates [0x7f0]: 32000 44100 48000 88200 96000 176400 192000
bits [0xe]: 16 20 24
formats [0x5]: PCM AC3
Unsolicited: tag=00, enabled=0
Node 0x05 [Pin Complex] wcaps 0x407381: 8-Channels Digital CP
Pincap 0x09000094: OUT Detect HBR HDMI DP
Pin Default 0x18560010: [Jack] Digital Out at Int HDMI
Conn = Digital, Color = Unknown
DefAssociation = 0x1, Sequence = 0x0
Pin-ctls: 0x40: OUT
Unsolicited: tag=01, enabled=1
Connection: 1
0x04
--endcollapse--

!!USB Mixer information
!!---------------------
--startcollapse--

USB Mixer: usb_id=0x06f8b121, ctrlif=0, ctlerr=0
Card: Guillemot Corporation Hercules P32 DJ at usb-0000:00:1d.0-1.4,
full speed
Unit: 2
Control: name="PCM Playback Volume", index=0
Info: id=2, control=2, cmask=0xf, channels=4, type="S16"
Volume: min=-25600, max=0, dBmin=-10000, dBmax=0
Unit: 2
Control: name="PCM Playback Switch", index=0
Info: id=2, control=1, cmask=0xf, channels=4, type="INV_BOOLEAN"
Volume: min=0, max=1, dBmin=0, dBmax=0
--endcollapse--

!!ALSA Device nodes
!!-----------------

crw-rw----. 1 root audio 116, 6 Mar 20 18:15 /dev/snd/controlC0
crw-rw----. 1 root audio 116, 15 Mar 20 18:15 /dev/snd/controlC1
crw-rw----. 1 root audio 116, 18 Mar 20 21:25 /dev/snd/controlC2
crw-rw----. 1 root audio 116, 5 Mar 20 18:15 /dev/snd/hwC0D0
crw-rw----. 1 root audio 116, 11 Mar 20 18:15 /dev/snd/hwC1D0
crw-rw----. 1 root audio 116, 12 Mar 20 18:15 /dev/snd/hwC1D1
crw-rw----. 1 root audio 116, 13 Mar 20 18:15 /dev/snd/hwC1D2
crw-rw----. 1 root audio 116, 14 Mar 20 18:15 /dev/snd/hwC1D3
crw-rw----. 1 root audio 116, 17 Mar 20 21:25 /dev/snd/midiC2D0
crw-rw----. 1 root audio 116, 3 Mar 20 19:58 /dev/snd/pcmC0D0c
crw-rw----. 1 root audio 116, 2 Mar 20 20:40 /dev/snd/pcmC0D0p
crw-rw----. 1 root audio 116, 4 Mar 20 19:58 /dev/snd/pcmC0D1p
crw-rw----. 1 root audio 116, 7 Mar 20 19:58 /dev/snd/pcmC1D3p
crw-rw----. 1 root audio 116, 8 Mar 20 19:58 /dev/snd/pcmC1D7p
crw-rw----. 1 root audio 116, 9 Mar 20 19:58 /dev/snd/pcmC1D8p
crw-rw----. 1 root audio 116, 10 Mar 20 19:58 /dev/snd/pcmC1D9p
crw-rw----. 1 root audio 116, 16 Mar 20 21:32 /dev/snd/pcmC2D0p
crw-rw----. 1 root audio 116, 1 Mar 20 17:19 /dev/snd/seq
crw-rw----. 1 root audio 116, 33 Mar 20 18:15 /dev/snd/timer

/dev/snd/by-id:
total 0
drwxr-xr-x. 2 root root 60 Mar 20 21:25 .
drwxr-xr-x. 4 root root 460 Mar 20 21:25 ..
lrwxrwxrwx. 1 root root 12 Mar 20 21:25 usb-
Guillemot_Corporation_Hercules_P32_DJ-00 -> ../controlC2

/dev/snd/by-path:
total 0
drwxr-xr-x. 2 root root 100 Mar 20 21:25 .
drwxr-xr-x. 4 root root 460 Mar 20 21:25 ..
lrwxrwxrwx. 1 root root 12 Mar 20 18:15 pci-0000:00:1b.0 ->
../controlC0
lrwxrwxrwx. 1 root root 12 Mar 20 21:25 pci-0000:00:1d.0-usb-0:1.4:1.0
-> ../controlC2
lrwxrwxrwx. 1 root root 12 Mar 20 18:15 pci-0000:01:00.1 ->
../controlC1

!!Aplay/Arecord output
!!--------------------

APLAY

**** List of PLAYBACK Hardware Devices ****
card 0: MID [HDA Intel MID], device 0: ALC269VB Analog [ALC269VB
Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: MID [HDA Intel MID], device 1: ALC269VB Digital [ALC269VB
Digital]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 3: Generic Digital [Generic
Digital]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 7: Generic Digital [Generic
Digital]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 8: Generic Digital [Generic
Digital]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 9: Generic Digital [Generic
Digital]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 2: DJ [Hercules P32 DJ], device 0: USB Audio [USB Audio]
Subdevices: 1/1
Subdevice #0: subdevice #0

ARECORD

**** List of CAPTURE Hardware Devices ****
card 0: MID [HDA Intel MID], device 0: ALC269VB Analog [ALC269VB
Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0

!!Amixer output
!!-------------

!!-------Mixer controls for card 0 [MID]

Card hw:0 'MID'/'HDA Intel MID at 0xb7100000 irq 27'
Mixer name : 'Realtek ALC269VB'
Components : 'HDA:10ec0269,1025035b,00100100'
Controls : 31
Simple ctrls : 14
Simple mixer control 'Master',0
Capabilities: pvolume pvolume-joined pswitch pswitch-joined
Playback channels: Mono
Limits: Playback 0 - 87
Mono: Playback 81 [93%] [-4.50dB] [on]
Simple mixer control 'Headphone',0
Capabilities: pvolume pswitch
Playback channels: Front Left - Front Right
Limits: Playback 0 - 87
Mono:
Front Left: Playback 0 [0%] [-65.25dB] [off]
Front Right: Playback 0 [0%] [-65.25dB] [off]
Simple mixer control 'Speaker',0
Capabilities: pvolume pswitch
Playback channels: Front Left - Front Right
Limits: Playback 0 - 87
Mono:
Front Left: Playback 87 [100%] [0.00dB] [on]
Front Right: Playback 87 [100%] [0.00dB] [on]
Simple mixer control 'PCM',0
Capabilities: pvolume
Playback channels: Front Left - Front Right
Limits: Playback 0 - 255
Mono:
Front Left: Playback 128 [50%] [-25.40dB]
Front Right: Playback 128 [50%] [-25.40dB]
Simple mixer control 'Mic',0
Capabilities: pvolume pswitch
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 0 [0%] [-34.50dB] [off]
Front Right: Playback 0 [0%] [-34.50dB] [off]
Simple mixer control 'Mic Boost',0
Capabilities: volume
Playback channels: Front Left - Front Right
Capture channels: Front Left - Front Right
Limits: 0 - 3
Front Left: 0 [0%] [0.00dB]
Front Right: 0 [0%] [0.00dB]
Simple mixer control 'IEC958',0
Capabilities: pswitch pswitch-joined
Playback channels: Mono
Mono: Playback [off]
Simple mixer control 'IEC958 Default PCM',0
Capabilities: pswitch pswitch-joined
Playback channels: Mono
Mono: Playback [on]
Simple mixer control 'Beep',0
Capabilities: pvolume pswitch
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 0 [0%] [-34.50dB] [off]
Front Right: Playback 0 [0%] [-34.50dB] [off]
Simple mixer control 'Capture',0
Capabilities: cvolume cswitch
Capture channels: Front Left - Front Right
Limits: Capture 0 - 31
Front Left: Capture 0 [0%] [-16.50dB] [on]
Front Right: Capture 0 [0%] [-16.50dB] [on]
Simple mixer control 'Auto-Mute Mode',0
Capabilities: enum
Items: 'Disabled' 'Enabled'
Item0: 'Enabled'
Simple mixer control 'Digital',0
Capabilities: cvolume
Capture channels: Front Left - Front Right
Limits: Capture 0 - 120
Front Left: Capture 60 [50%] [0.00dB]
Front Right: Capture 60 [50%] [0.00dB]
Simple mixer control 'Internal Mic Boost',0
Capabilities: volume
Playback channels: Front Left - Front Right
Capture channels: Front Left - Front Right
Limits: 0 - 3
Front Left: 0 [0%] [0.00dB]
Front Right: 0 [0%] [0.00dB]
Simple mixer control 'Loopback Mixing',0
Capabilities: enum
Items: 'Disabled' 'Enabled'
Item0: 'Disabled'

!!-------Mixer controls for card 1 [NVidia]

Card hw:1 'NVidia'/'HDA NVidia at 0xb3000000 irq 16'
Mixer name : 'Nvidia Generic'
Components : 'HDA:10de000a,10de0101,00100100'
Controls : 24
Simple ctrls : 4
Simple mixer control 'IEC958',0
Capabilities: pswitch pswitch-joined
Playback channels: Mono
Mono: Playback [on]
Simple mixer control 'IEC958',1
Capabilities: pswitch pswitch-joined
Playback channels: Mono
Mono: Playback [on]
Simple mixer control 'IEC958',2
Capabilities: pswitch pswitch-joined
Playback channels: Mono
Mono: Playback [on]
Simple mixer control 'IEC958',3
Capabilities: pswitch pswitch-joined
Playback channels: Mono
Mono: Playback [on]

!!-------Mixer controls for card 2 [DJ]

Card hw:2 'DJ'/'Guillemot Corporation Hercules P32 DJ at usb-
0000:00:1d.0-1.4, full speed'
Mixer name : 'USB Mixer'
Components : 'USB06f8:b121'
Controls : 4
Simple ctrls : 1
Simple mixer control 'PCM',0
Capabilities: pvolume pswitch
Playback channels: Front Left - Front Right - Rear Left - Rear Right
Limits: Playback 0 - 400
Mono:
Front Left: Playback 320 [80%] [-20.00dB] [on]
Front Right: Playback 320 [80%] [-20.00dB] [on]
Rear Left: Playback 320 [80%] [-20.00dB] [on]
Rear Right: Playback 320 [80%] [-20.00dB] [on]

!!Alsactl output
!!--------------

--startcollapse--
state.MID {
control.1 {
iface MIXER
name 'Headphone Playback Volume'
value.0 0
value.1 0
comment {
access 'read write'
type INTEGER
count 2
range '0 - 87'
dbmin -6525
dbmax 0
dbvalue.0 -6525
dbvalue.1 -6525
}
}
control.2 {
iface MIXER
name 'Headphone Playback Switch'
value.0 false
value.1 false
comment {
access 'read write'
type BOOLEAN
count 2
}
}
control.3 {
iface MIXER
name 'Speaker Playback Volume'
value.0 87
value.1 87
comment {
access 'read write'
type INTEGER
count 2
range '0 - 87'
dbmin -6525
dbmax 0
dbvalue.0 0
dbvalue.1 0
}
}
control.4 {
iface MIXER
name 'Speaker Playback Switch'
value.0 true
value.1 true
comment {
access 'read write'
type BOOLEAN
count 2
}
}
control.5 {
iface MIXER
name 'Loopback Mixing'
value Disabled
comment {
access 'read write'
type ENUMERATED
count 1
item.0 Disabled
item.1 Enabled
}
}
control.6 {
iface MIXER
name 'Mic Playback Volume'
value.0 0
value.1 0
comment {
access 'read write'
type INTEGER
count 2
range '0 - 31'
dbmin -3450
dbmax 1200
dbvalue.0 -3450
dbvalue.1 -3450
}
}
control.7 {
iface MIXER
name 'Mic Playback Switch'
value.0 false
value.1 false
comment {
access 'read write'
type BOOLEAN
count 2
}
}
control.8 {
iface MIXER
name 'Auto-Mute Mode'
value Enabled
comment {
access 'read write'
type ENUMERATED
count 1
item.0 Disabled
item.1 Enabled
}
}
control.9 {
iface MIXER
name 'Capture Volume'
value.0 0
value.1 0
comment {
access 'read write'
type INTEGER
count 2
range '0 - 31'
dbmin -1650
dbmax 3000
dbvalue.0 -1650
dbvalue.1 -1650
}
}
control.10 {
iface MIXER
name 'Capture Switch'
value.0 true
value.1 true
comment {
access 'read write'
type BOOLEAN
count 2
}
}
control.11 {
iface MIXER
name 'Mic Boost Volume'
value.0 0
value.1 0
comment {
access 'read write'
type INTEGER
count 2
range '0 - 3'
dbmin 0
dbmax 3600
dbvalue.0 0
dbvalue.1 0
}
}
control.12 {
iface MIXER
name 'Internal Mic Boost Volume'
value.0 0
value.1 0
comment {
access 'read write'
type INTEGER
count 2
range '0 - 3'
dbmin 0
dbmax 3600
dbvalue.0 0
dbvalue.1 0
}
}
control.13 {
iface MIXER
name 'Beep Playback Volume'
value.0 0
value.1 0
comment {
access 'read write'
type INTEGER
count 2
range '0 - 31'
dbmin -3450
dbmax 1200
dbvalue.0 -3450
dbvalue.1 -3450
}
}
control.14 {
iface MIXER
name 'Beep Playback Switch'
value.0 false
value.1 false
comment {
access 'read write'
type BOOLEAN
count 2
}
}
control.15 {
iface MIXER
name 'IEC958 Playback Con Mask'
value
'0fff000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000
000000000000000000000000000000000000000000000000000000000000000000000'
comment {
access read
type IEC958
count 1
}
}
control.16 {
iface MIXER
name 'IEC958 Playback Pro Mask'
value
'0f00000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000
000000000000000000000000000000000000000000000000000000000000000000000'
comment {
access read
type IEC958
count 1
}
}
control.17 {
iface MIXER
name 'IEC958 Playback Default'
value
'0400000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000
000000000000000000000000000000000000000000000000000000000000000000000'
comment {
access 'read write'
type IEC958
count 1
}
}
control.18 {
iface MIXER
name 'IEC958 Playback Switch'
value false
comment {
access 'read write'
type BOOLEAN
count 1
}
}
control.19 {
iface MIXER
name 'IEC958 Default PCM Playback Switch'
value true
comment {
access 'read write'
type BOOLEAN
count 1
}
}
control.20 {
iface MIXER
name 'Master Playback Volume'
value 81
comment {
access 'read write'
type INTEGER
count 1
range '0 - 87'
dbmin -6525
dbmax 0
dbvalue.0 -450
}
}
control.21 {
iface MIXER
name 'Master Playback Switch'
value true
comment {
access 'read write'
type BOOLEAN
count 1
}
}
control.22 {
iface CARD
name 'Mic Jack'
value false
comment {
access read
type BOOLEAN
count 1
}
}
control.23 {
iface CARD
name 'Internal Mic Phantom Jack'
value true
comment {
access read
type BOOLEAN
count 1
}
}
control.24 {
iface CARD
name 'Headphone Jack'
value false
comment {
access read
type BOOLEAN
count 1
}
}
control.25 {
iface CARD
name 'Speaker Phantom Jack'
value true
comment {
access read
type BOOLEAN
count 1
}
}
control.26 {
iface CARD
name 'SPDIF Phantom Jack'
value true
comment {
access read
type BOOLEAN
count 1
}
}
control.27 {
iface PCM
name 'Playback Channel Map'
value.0 0
value.1 0
comment {
access read
type INTEGER
count 2
range '0 - 36'
}
}
control.28 {
iface PCM
name 'Capture Channel Map'
value.0 0
value.1 0
comment {
access read
type INTEGER
count 2
range '0 - 36'
}
}
control.29 {
iface PCM
device 1
name 'Playback Channel Map'
value.0 0
value.1 0
comment {
access read
type INTEGER
count 2
range '0 - 36'
}
}
control.30 {
iface MIXER
name 'PCM Playback Volume'
value.0 128
value.1 128
comment {
access 'read write user'
type INTEGER
count 2
range '0 - 255'
tlv '0000000100000008ffffec1400000014'
dbmin -5100
dbmax 0
dbvalue.0 -2540
dbvalue.1 -2540
}
}
control.31 {
iface MIXER
name 'Digital Capture Volume'
value.0 60
value.1 60
comment {
access 'read write user'
type INTEGER
count 2
range '0 - 120'
tlv '0000000100000008fffff44800000032'
dbmin -3000
dbmax 3000
dbvalue.0 0
dbvalue.1 0
}
}
}
state.NVidia {
control.1 {
iface MIXER
name 'IEC958 Playback Con Mask'
value
'0fff000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000
000000000000000000000000000000000000000000000000000000000000000000000'
comment {
access read
type IEC958
count 1
}
}
control.2 {
iface MIXER
name 'IEC958 Playback Pro Mask'
value
'0f00000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000
000000000000000000000000000000000000000000000000000000000000000000000'
comment {
access read
type IEC958
count 1
}
}
control.3 {
iface MIXER
name 'IEC958 Playback Default'
value
'0400000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000
000000000000000000000000000000000000000000000000000000000000000000000'
comment {
access 'read write'
type IEC958
count 1
}
}
control.4 {
iface MIXER
name 'IEC958 Playback Switch'
value true
comment {
access 'read write'
type BOOLEAN
count 1
}
}
control.5 {
iface CARD
name 'HDMI Jack'
value false
comment {
access read
type BOOLEAN
count 1
}
}
control.6 {
iface PCM
device 3
name 'Playback Channel Map'
value.0 0
value.1 0
comment {
access read
type INTEGER
count 2
range '0 - 36'
}
}
control.7 {
iface MIXER
name 'IEC958 Playback Con Mask'
index 1
value
'0fff000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000
000000000000000000000000000000000000000000000000000000000000000000000'
comment {
access read
type IEC958
count 1
}
}
control.8 {
iface MIXER
name 'IEC958 Playback Pro Mask'
index 1
value
'0f00000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000
000000000000000000000000000000000000000000000000000000000000000000000'
comment {
access read
type IEC958
count 1
}
}
control.9 {
iface MIXER
name 'IEC958 Playback Default'
index 1
value
'0400000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000
000000000000000000000000000000000000000000000000000000000000000000000'
comment {
access 'read write'
type IEC958
count 1
}
}
control.10 {
iface MIXER
name 'IEC958 Playback Switch'
index 1
value true
comment {
access 'read write'
type BOOLEAN
count 1
}
}
control.11 {
iface CARD
name 'HDMI Jack'
index 1
value false
comment {
access read
type BOOLEAN
count 1
}
}
control.12 {
iface PCM
device 7
name 'Playback Channel Map'
value.0 0
value.1 0
comment {
access read
type INTEGER
count 2
range '0 - 36'
}
}
control.13 {
iface MIXER
name 'IEC958 Playback Con Mask'
index 2
value
'0fff000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000
000000000000000000000000000000000000000000000000000000000000000000000'
comment {
access read
type IEC958
count 1
}
}
control.14 {
iface MIXER
name 'IEC958 Playback Pro Mask'
index 2
value
'0f00000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000
000000000000000000000000000000000000000000000000000000000000000000000'
comment {
access read
type IEC958
count 1
}
}
control.15 {
iface MIXER
name 'IEC958 Playback Default'
index 2
value
'0400000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000
000000000000000000000000000000000000000000000000000000000000000000000'
comment {
access 'read write'
type IEC958
count 1
}
}
control.16 {
iface MIXER
name 'IEC958 Playback Switch'
index 2
value true
comment {
access 'read write'
type BOOLEAN
count 1
}
}
control.17 {
iface CARD
name 'HDMI Jack'
index 2
value false
comment {
access read
type BOOLEAN
count 1
}
}
control.18 {
iface PCM
device 8
name 'Playback Channel Map'
value.0 0
value.1 0
comment {
access read
type INTEGER
count 2
range '0 - 36'
}
}
control.19 {
iface MIXER
name 'IEC958 Playback Con Mask'
index 3
value
'0fff000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000
000000000000000000000000000000000000000000000000000000000000000000000'
comment {
access read
type IEC958
count 1
}
}
control.20 {
iface MIXER
name 'IEC958 Playback Pro Mask'
index 3
value
'0f00000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000
000000000000000000000000000000000000000000000000000000000000000000000'
comment {
access read
type IEC958
count 1
}
}
control.21 {
iface MIXER
name 'IEC958 Playback Default'
index 3
value
'0400000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000
000000000000000000000000000000000000000000000000000000000000000000000'
comment {
access 'read write'
type IEC958
count 1
}
}
control.22 {
iface MIXER
name 'IEC958 Playback Switch'
index 3
value true
comment {
access 'read write'
type BOOLEAN
count 1
}
}
control.23 {
iface CARD
name 'HDMI Jack'
index 3
value false
comment {
access read
type BOOLEAN
count 1
}
}
control.24 {
iface PCM
device 9
name 'Playback Channel Map'
value.0 0
value.1 0
comment {
access read
type INTEGER
count 2
range '0 - 36'
}
}
}
state.DJ {
control.1 {
iface PCM
name 'Playback Channel Map'
value.0 0
value.1 0
value.2 0
value.3 0
comment {
access read
type INTEGER
count 4
range '0 - 36'
}
}
control.2 {
iface MIXER
name 'PCM Playback Switch'
value.0 true
value.1 true
value.2 true
value.3 true
comment {
access 'read write'
type BOOLEAN
count 4
}
}
control.3 {
iface MIXER
name 'PCM Playback Volume'
value.0 320
value.1 320
value.2 320
value.3 320
comment {
access 'read write'
type INTEGER
count 4
range '0 - 400'
dbmin -10000
dbmax 0
dbvalue.0 -2000
dbvalue.1 -2000
dbvalue.2 -2000
dbvalue.3 -2000
}
}
control.4 {
iface CARD
name 'Keep Interface'
value false
comment {
access 'read write'
type BOOLEAN
count 1
}
}
}
--endcollapse--

!!All Loaded Modules
!!------------------

Module
snd_hrtimer
snd_seq_midi
snd_seq_dummy
snd_seq_midi_event
snd_seq
snd_pcm_oss
snd_mixer_oss
xt_iprange
ipv6
crc_ccitt
arc4
brcmsmac
cordic
brcmutil
mac80211
sha256_ssse3
snd_usb_audio
snd_usbmidi_lib
sha256_generic
snd_rawmidi
cfg80211
snd_seq_device
iTCO_wdt
iTCO_vendor_support
snd_hda_codec_realtek
snd_hda_codec_generic
ledtrig_audio
snd_hda_intel
joydev
snd_hda_codec
acer_wmi
sparse_keymap
bcma
snd_hda_core
rfkill
pcc_cpufreq
snd_hwdep
acpi_cpufreq
snd_pcm
snd_timer
mei_me
snd
mei
pcspkr
soundcore
lpc_ich
i2c_i801
mfd_core
ums_onetouch
usb_storage
dm_crypt
serio_raw
atl1c
nouveau
mxm_wmi
i2c_algo_bit
drm_kms_helper
syscopyarea
sysfillrect
sysimgblt
fb_sys_fops
ttm
wmi
video
drm
i2c_core

!!Sysfs Files
!!-----------

/sys/class/sound/hwC0D0/init_pin_configs:
0x12 0x99a30930
0x14 0x99130110
0x17 0x411111f0
0x18 0x03a19840
0x19 0x411111f0
0x1a 0x411111f0
0x1b 0x411111f0
0x1d 0x4017992d
0x1e 0x03451120
0x21 0x0321101f

/sys/class/sound/hwC0D0/driver_pin_configs:

/sys/class/sound/hwC0D0/user_pin_configs:

/sys/class/sound/hwC0D0/init_verbs:

/sys/class/sound/hwC0D0/hints:

/sys/class/sound/hwC1D0/init_pin_configs:
0x05 0x18560010

/sys/class/sound/hwC1D0/driver_pin_configs:

/sys/class/sound/hwC1D0/user_pin_configs:

/sys/class/sound/hwC1D0/init_verbs:

/sys/class/sound/hwC1D0/hints:

/sys/class/sound/hwC1D1/init_pin_configs:
0x05 0x18560010

/sys/class/sound/hwC1D1/driver_pin_configs:

/sys/class/sound/hwC1D1/user_pin_configs:

/sys/class/sound/hwC1D1/init_verbs:

/sys/class/sound/hwC1D1/hints:

/sys/class/sound/hwC1D2/init_pin_configs:
0x05 0x18560010

/sys/class/sound/hwC1D2/driver_pin_configs:

/sys/class/sound/hwC1D2/user_pin_configs:

/sys/class/sound/hwC1D2/init_verbs:

/sys/class/sound/hwC1D2/hints:

/sys/class/sound/hwC1D3/init_pin_configs:
0x05 0x18560010

/sys/class/sound/hwC1D3/driver_pin_configs:

/sys/class/sound/hwC1D3/user_pin_configs:

/sys/class/sound/hwC1D3/init_verbs:

/sys/class/sound/hwC1D3/hints:

!!ALSA/HDA dmesg
!!--------------

[ 0.238633] ACPI: Added _OSI(Linux-Dell-Video)
[ 0.238779] ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio)

[ 0.238926] ACPI: Added _OSI(Linux-HPI-Hybrid-Graphics)
--
[ 24.240651] input: Acer WMI hotkeys as
/devices/virtual/input/input16
[ 24.294387] snd_hda_intel 0000:00:1b.0: enabling device (0000 ->
0002)
[ 24.295148] snd_hda_intel 0000:01:00.1: Disabling MSI
[ 24.417727] snd_hda_codec_realtek hdaudioC0D0: autoconfig for
ALC269VB: line_outs=1 (0x14/0x0/0x0/0x0/0x0) type:speaker
[ 24.418128] snd_hda_codec_realtek hdaudioC0D0: speaker_outs=0
(0x0/0x0/0x0/0x0/0x0)
[ 24.418507] snd_hda_codec_realtek hdaudioC0D0: hp_outs=1
(0x21/0x0/0x0/0x0/0x0)
[ 24.419057] snd_hda_codec_realtek hdaudioC0D0: mono: mono_out=0x0
[ 24.419695] snd_hda_codec_realtek hdaudioC0D0: dig-out=0x1e/0x0
[ 24.420312] snd_hda_codec_realtek hdaudioC0D0: inputs:
[ 24.420959] snd_hda_codec_realtek hdaudioC0D0: Mic=0x18
[ 24.421602] snd_hda_codec_realtek hdaudioC0D0: Internal
Mic=0x12
[ 24.448267] input: HDA Intel MID Mic as
/devices/pci0000:00/0000:00:1b.0/sound/card0/input17
[ 24.448762] input: HDA Intel MID Headphone as
/devices/pci0000:00/0000:00:1b.0/sound/card0/input18
[ 24.517380] mei mei::55213584-9a29-4916-badf-0fb7ed682aeb:01: Could
not read FW version
[ 24.517783] mei mei::55213584-9a29-4916-badf-0fb7ed682aeb:01: FW
version command failed -5
[ 24.606385] snd_hda_codec_generic hdaudioC1D0: autoconfig for
Generic: line_outs=0 (0x0/0x0/0x0/0x0/0x0) type:line
[ 24.606759] snd_hda_codec_generic hdaudioC1D0: speaker_outs=0
(0x0/0x0/0x0/0x0/0x0)
[ 24.607115] snd_hda_codec_generic hdaudioC1D0: hp_outs=0
(0x0/0x0/0x0/0x0/0x0)
[ 24.607684] snd_hda_codec_generic hdaudioC1D0: mono: mono_out=0x0
[ 24.608266] snd_hda_codec_generic hdaudioC1D0: dig-out=0x5/0x0
[ 24.608871] snd_hda_codec_generic hdaudioC1D0: inputs:
[ 24.684106] mce: CPU3: Core temperature above threshold, cpu clock

throttled (total events = 1)
--
[ 24.770560] iTCO_vendor_support: vendor-support=0
[ 24.790526] snd_hda_codec_generic hdaudioC1D1: autoconfig for
Generic: line_outs=0 (0x0/0x0/0x0/0x0/0x0) type:line
[ 24.790874] snd_hda_codec_generic hdaudioC1D1: speaker_outs=0
(0x0/0x0/0x0/0x0/0x0)
[ 24.791202] snd_hda_codec_generic hdaudioC1D1: hp_outs=0
(0x0/0x0/0x0/0x0/0x0)
[ 24.791536] snd_hda_codec_generic hdaudioC1D1: mono: mono_out=0x0
[ 24.791995] snd_hda_codec_generic hdaudioC1D1: dig-out=0x5/0x0
[ 24.792477] snd_hda_codec_generic hdaudioC1D1: inputs:

[ 24.799553] iTCO_wdt: Intel TCO WatchDog Timer Driver v1.11
--
[ 24.800621] iTCO_wdt: initialized. heartbeat=30 sec (nowayout=0)
[ 24.850369] snd_hda_codec_generic hdaudioC1D2: autoconfig for
Generic: line_outs=0 (0x0/0x0/0x0/0x0/0x0) type:line
[ 24.850650] snd_hda_codec_generic hdaudioC1D2: speaker_outs=0
(0x0/0x0/0x0/0x0/0x0)
[ 24.850911] snd_hda_codec_generic hdaudioC1D2: hp_outs=0
(0x0/0x0/0x0/0x0/0x0)
[ 24.851165] snd_hda_codec_generic hdaudioC1D2: mono: mono_out=0x0
[ 24.851415] snd_hda_codec_generic hdaudioC1D2: dig-out=0x5/0x0
[ 24.851747] snd_hda_codec_generic hdaudioC1D2: inputs:
[ 25.056813] snd_hda_codec_generic hdaudioC1D3: autoconfig for
Generic: line_outs=0 (0x0/0x0/0x0/0x0/0x0) type:line
[ 25.057109] snd_hda_codec_generic hdaudioC1D3: speaker_outs=0
(0x0/0x0/0x0/0x0/0x0)
[ 25.057393] snd_hda_codec_generic hdaudioC1D3: hp_outs=0
(0x0/0x0/0x0/0x0/0x0)
[ 25.057658] snd_hda_codec_generic hdaudioC1D3: mono: mono_out=0x0
[ 25.057924] snd_hda_codec_generic hdaudioC1D3: dig-out=0x5/0x0
[ 25.058180] snd_hda_codec_generic hdaudioC1D3: inputs:
[ 25.094153] input: HDA NVidia HDMI as
/devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input19
[ 25.094539] input: HDA NVidia HDMI as
/devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input20
[ 25.094891] input: HDA NVidia HDMI as
/devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input21
[ 25.095249] input: HDA NVidia HDMI as
/devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input22
[ 25.783253] cfg80211: Loading compiled-in X.509 certificates for

regulatory database
--
[ 26.044956] usb 2-1.4: [2] FU [PCM Playback Volume] ch = 4, val =
-25600/0/64
[ 26.046216] usbcore: registered new interface driver snd-usb-audio
[ 26.088396] cfg80211: Problem loading in-kernel X.509 certificate (-
13)

-----------------------

lsusb -v

Bus 002 Device 003: ID 06f8:b121 Guillemot Corp.
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.10
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
idVendor 0x06f8 Guillemot Corp.
idProduct 0xb121
bcdDevice 2.00
iManufacturer 1 Guillemot Corporation
iProduct 2 Hercules P32 DJ
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 196
bNumInterfaces 3
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xc0
Self Powered
MaxPower 480mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 1 Audio
bInterfaceSubClass 1 Control Device
bInterfaceProtocol 0
iInterface 0
AudioControl Interface Descriptor:
bLength 10
bDescriptorType 36
bDescriptorSubtype 1 (HEADER)
bcdADC 1.00
wTotalLength 43
bInCollection 2
baInterfaceNr( 0) 1
baInterfaceNr( 1) 2
AudioControl Interface Descriptor:
bLength 12
bDescriptorType 36
bDescriptorSubtype 2 (INPUT_TERMINAL)
bTerminalID 1
wTerminalType 0x0101 USB Streaming
bAssocTerminal 0
bNrChannels 4
wChannelConfig 0x0033
Left Front (L)
Right Front (R)
Left Surround (LS)
Right Surround (RS)
iChannelNames 0
iTerminal 0
AudioControl Interface Descriptor:
bLength 12
bDescriptorType 36
bDescriptorSubtype 6 (FEATURE_UNIT)
bUnitID 2
bSourceID 1
bControlSize 1
bmaControls( 0) 0x00
bmaControls( 1) 0x03
Mute Control
Volume Control
bmaControls( 2) 0x03
Mute Control
Volume Control
bmaControls( 3) 0x03
Mute Control
Volume Control
bmaControls( 4) 0x03
Mute Control
Volume Control
iFeature 0
AudioControl Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 3 (OUTPUT_TERMINAL)
bTerminalID 3
wTerminalType 0x0301 Speaker
bAssocTerminal 0
bSourceID 2
iTerminal 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 1
bNumEndpoints 2
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 0
AudioStreaming Interface Descriptor:
bLength 7
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 1
bDelay 1 frames
wFormatTag 1 PCM
AudioStreaming Interface Descriptor:
bLength 11
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bNrChannels 4
bSubframeSize 2
bBitResolution 16
bSamFreqType 1 Discrete
tSamFreq[ 0] 48000
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x01 EP 1 OUT
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0188 1x 392 bytes
bInterval 1
bRefresh 0
bSynchAddress 129
AudioControl Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bLockDelayUnits 0 Undefined
wLockDelay 0 Undefined
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 17
Transfer Type Isochronous
Synch Type None
Usage Type Feedback
wMaxPacketSize 0x0003 1x 3 bytes
bInterval 1
bRefresh 5
bSynchAddress 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 1 Audio
bInterfaceSubClass 3 MIDI Streaming
bInterfaceProtocol 0
iInterface 2 Hercules P32 DJ
MIDIStreaming Interface Descriptor:
bLength 7
bDescriptorType 36
bDescriptorSubtype 1 (HEADER)
bcdADC 1.00
wTotalLength 65
MIDIStreaming Interface Descriptor:
bLength 6
bDescriptorType 36
bDescriptorSubtype 2 (MIDI_IN_JACK)
bJackType 1 Embedded
bJackID 1
iJack 0
MIDIStreaming Interface Descriptor:
bLength 6
bDescriptorType 36
bDescriptorSubtype 2 (MIDI_IN_JACK)
bJackType 2 External
bJackID 2
iJack 0
MIDIStreaming Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 3 (MIDI_OUT_JACK)
bJackType 1 Embedded
bJackID 3
bNrInputPins 1
baSourceID( 0) 2
BaSourcePin( 0) 1
iJack 0
MIDIStreaming Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 3 (MIDI_OUT_JACK)
bJackType 2 External
bJackID 4
bNrInputPins 1
baSourceID( 0) 1
BaSourcePin( 0) 1
iJack 0
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 0
bRefresh 0
bSynchAddress 0
MIDIStreaming Endpoint Descriptor:
bLength 5
bDescriptorType 37
bDescriptorSubtype 1 (GENERAL)
bNumEmbMIDIJack 1
baAssocJackID( 0) 1
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 0
bRefresh 0
bSynchAddress 0
MIDIStreaming Endpoint Descriptor:
bLength 5
bDescriptorType 37
bDescriptorSubtype 1 (GENERAL)
bNumEmbMIDIJack 1
baAssocJackID( 0) 3
Device Status: 0x0e01
Self Powered

Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching
Hub
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 9 Hub
bDeviceSubClass 0 Unused
bDeviceProtocol 1 Single TT
bMaxPacketSize0 64
idVendor 0x8087 Intel Corp.
idProduct 0x0020 Integrated Rate Matching Hub
bcdDevice 0.00
iManufacturer 0
iProduct 0
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 25
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xe0
Self Powered
Remote Wakeup
MaxPower 0mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 9 Hub
bInterfaceSubClass 0 Unused
bInterfaceProtocol 0 Full speed (or root) hub
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0002 1x 2 bytes
bInterval 12
Hub Descriptor:
bLength 11
bDescriptorType 41
nNbrPorts 8
wHubCharacteristic 0x0089
Per-port power switching
Per-port overcurrent protection
TT think time 8 FS bits
Port indicators
bPwrOn2PwrGood 50 * 2 milli seconds
bHubContrCurrent 0 milli Ampere
DeviceRemovable 0x00 0x00
PortPwrCtrlMask 0xff 0xff
Hub Port Status:
Port 1: 0000.0100 power
Port 2: 0000.0100 power
Port 3: 0000.0100 power
Port 4: 0000.0103 power enable connect
Port 5: 0000.0100 power
Port 6: 0000.0100 power
Port 7: 0000.0100 power
Port 8: 0000.0100 power
Device Qualifier (for other device speed):
bLength 10
bDescriptorType 6
bcdUSB 2.00
bDeviceClass 9 Hub
bDeviceSubClass 0 Unused
bDeviceProtocol 0 Full speed (or root) hub
bMaxPacketSize0 64
bNumConfigurations 1
Device Status: 0x0001
Self Powered

Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 9 Hub
bDeviceSubClass 0 Unused
bDeviceProtocol 0 Full speed (or root) hub
bMaxPacketSize0 64
idVendor 0x1d6b Linux Foundation
idProduct 0x0002 2.0 root hub
bcdDevice 5.00
iManufacturer 3 Linux 5.0.2 ehci_hcd
iProduct 2 EHCI Host Controller
iSerial 1 0000:00:1d.0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 25
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xe0
Self Powered
Remote Wakeup
MaxPower 0mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 9 Hub
bInterfaceSubClass 0 Unused
bInterfaceProtocol 0 Full speed (or root) hub
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0004 1x 4 bytes
bInterval 12
Hub Descriptor:
bLength 9
bDescriptorType 41
nNbrPorts 3
wHubCharacteristic 0x000a
No power switching (usb 1.0)
Per-port overcurrent protection
bPwrOn2PwrGood 10 * 2 milli seconds
bHubContrCurrent 0 milli Ampere
DeviceRemovable 0x00
PortPwrCtrlMask 0xff
Hub Port Status:
Port 1: 0000.0503 highspeed power enable connect
Port 2: 0000.0100 power
Port 3: 0000.0100 power
Device Status: 0x0001
Self Powered

Bus 001 Device 005: ID 0d49:7010 Maxtor OneTouch
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
idVendor 0x0d49 Maxtor
idProduct 0x7010 OneTouch
bcdDevice 2.00
iManufacturer 1 Maxtor
iProduct 3 OneTouch
iSerial 2 Y61LWLCE
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 39
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xc0
Self Powered
MaxPower 0mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 3
bInterfaceClass 8 Mass Storage
bInterfaceSubClass 6 SCSI
bInterfaceProtocol 80 Bulk-Only
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x88 EP 8 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0002 1x 2 bytes
bInterval 9
Device Qualifier (for other device speed):
bLength 10
bDescriptorType 6
bcdUSB 2.00
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
bNumConfigurations 1
Device Status: 0x0001
Self Powered

Bus 001 Device 003: ID 064e:a219 Suyin Corp. 1.3M WebCam (notebook
emachines E730, Acer sub-brand)
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 239 Miscellaneous Device
bDeviceSubClass 2 ?
bDeviceProtocol 1 Interface Association
bMaxPacketSize0 64
idVendor 0x064e Suyin Corp.
idProduct 0xa219 1.3M WebCam (notebook emachines E730, Acer
sub-brand)
bcdDevice 2.15
iManufacturer 2 Suyin
iProduct 1 1.3M WebCam
iSerial 3 HF1315-S32B-OV01-VA-R02.01.05
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 527
bNumInterfaces 2
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x80
(Bus Powered)
MaxPower 500mA
Interface Association:
bLength 8
bDescriptorType 11
bFirstInterface 0
bInterfaceCount 2
bFunctionClass 14 Video
bFunctionSubClass 3 Video Interface Collection
bFunctionProtocol 0
iFunction 5 1.3M WebCam
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 1 Video Control
bInterfaceProtocol 0
iInterface 5 1.3M WebCam
VideoControl Interface Descriptor:
bLength 13
bDescriptorType 36
bDescriptorSubtype 1 (HEADER)
bcdUVC 1.00
wTotalLength 77
dwClockFrequency 15.000000MHz
bInCollection 1
baInterfaceNr( 0) 1
VideoControl Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 3 (OUTPUT_TERMINAL)
bTerminalID 2
wTerminalType 0x0101 USB Streaming
bAssocTerminal 0
bSourceID 4
iTerminal 0
VideoControl Interface Descriptor:
bLength 26
bDescriptorType 36
bDescriptorSubtype 6 (EXTENSION_UNIT)
bUnitID 4
guidExtensionCode {7033f028-1163-2e4a-ba2c-
6890eb334016}
bNumControl 8
bNrPins 1
baSourceID( 0) 3
bControlSize 1
bmControls( 0) 0x0f
iExtension 0
VideoControl Interface Descriptor:
bLength 18
bDescriptorType 36
bDescriptorSubtype 2 (INPUT_TERMINAL)
bTerminalID 1
wTerminalType 0x0201 Camera Sensor
bAssocTerminal 0
iTerminal 0
wObjectiveFocalLengthMin 0
wObjectiveFocalLengthMax 0
wOcularFocalLength 0
bControlSize 3
bmControls 0x00000000
VideoControl Interface Descriptor:
bLength 11
bDescriptorType 36
bDescriptorSubtype 5 (PROCESSING_UNIT)
Warning: Descriptor too short
bUnitID 3
bSourceID 1
wMaxMultiplier 0
bControlSize 2
bmControls 0x0000153f
Brightness
Contrast
Hue
Saturation
Sharpness
Gamma
Backlight Compensation
Power Line Frequency
White Balance Temperature, Auto
iProcessing 0
bmVideoStandards 0xc6
NTSC - 525/60
PAL - 625/50
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x83 EP 3 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0010 1x 16 bytes
bInterval 6
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 5 1.3M WebCam
VideoStreaming Interface Descriptor:
bLength 14
bDescriptorType 36
bDescriptorSubtype 1 (INPUT_HEADER)
bNumFormats 1
wTotalLength 307
bEndPointAddress 129
bmInfo 0
bTerminalLink 2
bStillCaptureMethod 2
bTriggerSupport 0
bTriggerUsage 0
bControlSize 1
bmaControls( 0) 27
VideoStreaming Interface Descriptor:
bLength 27
bDescriptorType 36
bDescriptorSubtype 4 (FORMAT_UNCOMPRESSED)
bFormatIndex 1
bNumFrameDescriptors 7
guidFormat {59555932-0000-1000-8000-
00aa00389b71}
bBitsPerPixel 16
bDefaultFrameIndex 1
bAspectRatioX 0
bAspectRatioY 0
bmInterlaceFlags 0x00
Interlaced stream or variable: No
Fields per frame: 2 fields
Field 1 first: No
Field pattern: Field 1 only
bCopyProtect 0
VideoStreaming Interface Descriptor:
bLength 34
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 1
bmCapabilities 0x00
Still image unsupported
wWidth 640
wHeight 480
dwMinBitRate 73728000
dwMaxBitRate 147456000
dwMaxVideoFrameBufferSize 614400
dwDefaultFrameInterval 333333
bFrameIntervalType 2
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 666666
VideoStreaming Interface Descriptor:
bLength 34
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 2
bmCapabilities 0x00
Still image unsupported
wWidth 352
wHeight 288
dwMinBitRate 24330240
dwMaxBitRate 48660480
dwMaxVideoFrameBufferSize 202752
dwDefaultFrameInterval 333333
bFrameIntervalType 2
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 666666
VideoStreaming Interface Descriptor:
bLength 34
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 3
bmCapabilities 0x00
Still image unsupported
wWidth 320
wHeight 240
dwMinBitRate 18432000
dwMaxBitRate 36864000
dwMaxVideoFrameBufferSize 153600
dwDefaultFrameInterval 333333
bFrameIntervalType 2
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 666666
VideoStreaming Interface Descriptor:
bLength 34
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 4
bmCapabilities 0x00
Still image unsupported
wWidth 176
wHeight 144
dwMinBitRate 6082560
dwMaxBitRate 12165120
dwMaxVideoFrameBufferSize 50688
dwDefaultFrameInterval 333333
bFrameIntervalType 2
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 666666
VideoStreaming Interface Descriptor:
bLength 34
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 5
bmCapabilities 0x00
Still image unsupported
wWidth 160
wHeight 120
dwMinBitRate 4608000
dwMaxBitRate 9216000
dwMaxVideoFrameBufferSize 38400
dwDefaultFrameInterval 333333
bFrameIntervalType 2
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 666666
VideoStreaming Interface Descriptor:
bLength 30
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 6
bmCapabilities 0x00
Still image unsupported
wWidth 1280
wHeight 800
dwMinBitRate 122880000
dwMaxBitRate 122880000
dwMaxVideoFrameBufferSize 2048000
dwDefaultFrameInterval 1333333
bFrameIntervalType 1
dwFrameInterval( 0) 1333333
VideoStreaming Interface Descriptor:
bLength 30
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 7
bmCapabilities 0x00
Still image unsupported
wWidth 1280
wHeight 1024
dwMinBitRate 157286400
dwMaxBitRate 157286400
dwMaxVideoFrameBufferSize 2621440
dwDefaultFrameInterval 1333333
bFrameIntervalType 1
dwFrameInterval( 0) 1333333
VideoStreaming Interface Descriptor:
bLength 30
bDescriptorType 36
bDescriptorSubtype 3 (STILL_IMAGE_FRAME)
bEndpointAddress 0
bNumImageSizePatterns 6
wWidth( 0) 1280
wHeight( 0) 1024
wWidth( 1) 640
wHeight( 1) 480
wWidth( 2) 320
wHeight( 2) 240
wWidth( 3) 320
wHeight( 3) 240
wWidth( 4) 176
wHeight( 4) 144
wWidth( 5) 160
wHeight( 5) 120
bNumCompressionPatterns 6
VideoStreaming Interface Descriptor:
bLength 6
bDescriptorType 36
bDescriptorSubtype 13 (COLORFORMAT)
bColorPrimaries 1 (BT.709,sRGB)
bTransferCharacteristics 1 (BT.709)
bMatrixCoefficients 4 (SMPTE 170M (BT.601))
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 1
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0080 1x 128 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 2
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0100 1x 256 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 3
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0320 1x 800 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 4
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0b20 2x 800 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 5
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x1320 3x 800 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 6
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x1400 3x 1024 bytes
bInterval 1
Device Qualifier (for other device speed):
bLength 10
bDescriptorType 6
bcdUSB 2.00
bDeviceClass 239 Miscellaneous Device
bDeviceSubClass 2 ?
bDeviceProtocol 1 Interface Association
bMaxPacketSize0 64
bNumConfigurations 1
Device Status: 0x0002
(Bus Powered)
Remote Wakeup Enabled

Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching
Hub
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 9 Hub
bDeviceSubClass 0 Unused
bDeviceProtocol 1 Single TT
bMaxPacketSize0 64
idVendor 0x8087 Intel Corp.
idProduct 0x0020 Integrated Rate Matching Hub
bcdDevice 0.00
iManufacturer 0
iProduct 0
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 25
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xe0
Self Powered
Remote Wakeup
MaxPower 0mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 9 Hub
bInterfaceSubClass 0 Unused
bInterfaceProtocol 0 Full speed (or root) hub
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0001 1x 1 bytes
bInterval 12
Hub Descriptor:
bLength 9
bDescriptorType 41
nNbrPorts 6
wHubCharacteristic 0x0089
Per-port power switching
Per-port overcurrent protection
TT think time 8 FS bits
Port indicators
bPwrOn2PwrGood 50 * 2 milli seconds
bHubContrCurrent 0 milli Ampere
DeviceRemovable 0x00
PortPwrCtrlMask 0xff
Hub Port Status:
Port 1: 0000.0503 highspeed power enable connect
Port 2: 0000.0503 highspeed power enable connect
Port 3: 0000.0100 power
Port 4: 0000.0100 power
Port 5: 0000.0100 power
Port 6: 0000.0100 power
Device Qualifier (for other device speed):
bLength 10
bDescriptorType 6
bcdUSB 2.00
bDeviceClass 9 Hub
bDeviceSubClass 0 Unused
bDeviceProtocol 0 Full speed (or root) hub
bMaxPacketSize0 64
bNumConfigurations 1
Device Status: 0x0001
Self Powered

Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 9 Hub
bDeviceSubClass 0 Unused
bDeviceProtocol 0 Full speed (or root) hub
bMaxPacketSize0 64
idVendor 0x1d6b Linux Foundation
idProduct 0x0002 2.0 root hub
bcdDevice 5.00
iManufacturer 3 Linux 5.0.2 ehci_hcd
iProduct 2 EHCI Host Controller
iSerial 1 0000:00:1a.0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 25
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xe0
Self Powered
Remote Wakeup
MaxPower 0mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 9 Hub
bInterfaceSubClass 0 Unused
bInterfaceProtocol 0 Full speed (or root) hub
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0004 1x 4 bytes
bInterval 12
Hub Descriptor:
bLength 9
bDescriptorType 41
nNbrPorts 3
wHubCharacteristic 0x000a
No power switching (usb 1.0)
Per-port overcurrent protection
bPwrOn2PwrGood 10 * 2 milli seconds
bHubContrCurrent 0 milli Ampere
DeviceRemovable 0x00
PortPwrCtrlMask 0xff
Hub Port Status:
Port 1: 0000.0503 highspeed power enable connect
Port 2: 0000.0100 power
Port 3: 0000.0100 power
Device Status: 0x0001
Self Powered

Does anybody know how to fix this problem ?

Regards,

Guido

_______________________________________________
Alsa-devel mailing list
Alsa-devel@alsa-project.org
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On Fri, 22 Mar 2019 10:17:17 +0100, Guido Trentalancia wrote:

It cannot be a firmware bug, as you say, because:

• it does NOT happen on Windows!

It doesn't mean that the device behaves correctly as advertised.

• it does NOT even always happen on Linux: other users (with different kernel

/ ALSA library) are not experiencing the same problem;

• it happens with several firmware versions, including the latest one (1.36

and 1.46).

So it is either a bug in ALSA kernel driver, USB sound driver (more likely) or ALSA library.

Now, you are in charge of the USB sound driver, can you please double check??

If it doesn't happen for other users with the very same device, you'd need to identify what's the difference between your case and others. For example, if the difference of alsa-lib matters, you can try the very same condition.

This kind of bug can't be easily debugged without the actual hardware, unfortunately.

Takashi

Regards,

Guido

Il 22 marzo 2019 09:55:52 CET, Takashi Iwai tiwai@suse.de ha scritto:

On Thu, 21 Mar 2019 23:27:46 +0100,
Guido Trentalancia wrote:

     I wonder if this might be due to a bug in the "USB Audio Driver for Alsa"?

     https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/sound/usb

     https://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git/tree/sound/usb

More likely a buggy firmware of your USB audio device :)

 From the driver implementation POV, both audio and MIDI devices are
handled by individual endpoints, hence they shouldn't conflict.

Or another possibility would be some USB host side issue like the
bandwidth.  But
it's a MIDI stream that is very low data rate, so this
sounds also unlikely...

thanks,

Takashi

     Guido

         On the 20th of March 2019 at 21.47 Guido Trentalancia
         <guido@trentalancia.com wrote:

         Hello.

         I am hitting a very serious bug (ALSA kernel driver or ALSA library)
         when using the Hercules P32 DJ audio interface.

         The sound is severely distorted during MIDI transfers.

         To reproduce:

           + start playing something in a first console:

         console1# AUDIODEV=hw:2,0 play audio.wav

           + the audio plays fine

           + now start "amidi" in a second console while the above track is still
             playing

         console2#
    amidi -p hw:2,0,0 -d

           + the sound is now severely distorted (basically noise, with some hard-
             to-distinguish features resembling the original track) until "amidi"
             is
             interrupted !

         Kernel versions tested: from 4.12 up to 5.0.2 (latest).

         NOTES: Always reproducible. Same device is working fine on Windows.

         The output from alsa-info.sh and lsusb -v follows.

         upload=true&script=true&cardinfo=
         !!################################
         !!ALSA Information Script v 0.4.64
         !!################################

         !!Script ran on: Wed Mar 20 20:44:36 UTC 2019

         !!Linux Distribution
         !!------------------

         !!DMI Information
         !!---------------

         Manufacturer: Acer
         Product Name: Aspire 5745G

     Product Version: V1.19
         Firmware Version: V1.19
         Board Vendor: Acer
         Board Name: JV51_CP

         !!ACPI Device Status Information
         !!---------------

         /sys/bus/acpi/devices/PNP0103:00/status 15
         /sys/bus/acpi/devices/PNP0C0A:00/status 31
         /sys/bus/acpi/devices/PNP0C0F:00/status 9
         /sys/bus/acpi/devices/PNP0C0F:01/status 9
         /sys/bus/acpi/devices/PNP0C0F:02/status 9
         /sys/bus/acpi/devices/PNP0C0F:03/status 9
         /sys/bus/acpi/devices/PNP0C0F:04/status 9
         /sys/bus/acpi/devices/PNP0C0F:05/status 9
         /sys/bus/acpi/devices/PNP0C0F:06/status 9
         /sys/bus/acpi/devices/PNP0C0F:07/status 9

         !!Kernel Information
         !!------------------

         Kernel release: 5.0.2
         Operating System: GNU/Linux
         Architecture: x86_64
         Processor: unknown
         SMP Enabled: Yes

         !!ALSA
    Version
         !!------------

         Driver version: k5.0.2
         Library version: 1.1.8
         Utilities version: 1.1.8

         !!Loaded ALSA modules
         !!-------------------

         snd_hda_intel
         snd_hda_intel
         snd_usb_audio

         !!Sound Servers on this system
         !!----------------------------

         Pulseaudio:
         Installed - Yes (/usr/bin/pulseaudio)
         Running - No

         Jack:
         Installed - Yes (/usr/bin/jackd)
         Running - No

         !!Soundcards recognised by ALSA
         !!-----------------------------

         0 [MID ]: HDA-Intel - HDA Intel MID
         HDA Intel MID at 0xb7100000 irq 27
         1 [NVidia ]: HDA-Intel - HDA NVidia
         HDA NVidia at 0xb3000000 irq 16
         2 [DJ ]: USB-Audio - Hercules P32 DJ
         Guillemot Corporation Hercules P32 DJ at usb-

    0000:00:1d.0-1.4, full speed

         !!PCI Soundcards installed in the system
         !!
    ----------------------------------------------------------------------

         00:1b.0 Audio device: Intel Corporation 5 Series/3400 Series Chipset
         High Definition Audio (rev 05)
         01:00.1 Audio device: NVIDIA Corporation GT216 HDMI Audio Controller
         (rev a1)

         !!Advanced information - PCI Vendor/Device/Subsystem ID's
         !!
    ----------------------------------------------------------------------

         00:1b.0 0403: 8086:3b56 (rev 05)

         Subsystem: 1025:035b
         --
         01:00.1 0403: 10de:0be2 (rev a1)
         Subsystem: 1025:035a

         !!Loaded sound module options
         !!---------------------------

         !!Module: snd_hda_intel
         align_buffer_size : -1
         bdl_pos_adj : -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-
         1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
         beep_mode :

    N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N
         enable :
         Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y
         enable_msi : -1
         id :
         (null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(
         null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(n
         ull),(null),(null),(null),(null),(null),(null),(null),(null),(null),(nu
         ll),(null)
         index : -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-
         1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
         jackpoll_ms :
         0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
         model :
         (null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(
         null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(n
         ull),(null),(null),(null),(null),(null),(null),(null),(null),(null),(nu
         ll),(null)
         patch :

       (null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(
         null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(n
         ull),(null),(null),(null),(null),(null),(null),(null),(null),(null),(nu
         ll),(null)
         pm_blacklist : Y
         position_fix : -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-
         1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
         power_save : 0
         power_save_controller : Y
         probe_mask : -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-
         1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
         probe_only :
         0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
         single_cmd : -1
         snoop : -1

         !!Module: snd_hda_intel
         align_buffer_size : -1
         bdl_pos_adj : -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-
         1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
         beep_mode :

    N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N
         enable :
         Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y
         enable_msi : -1
         id :
         (null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(
         null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(n
         ull),(null),(null),(null),(null),(null),(null),(null),(null),(null),(nu
         ll),(null)
         index : -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-
         1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
         jackpoll_ms :
         0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
         model :
         (null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(
         null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(n
         ull),(null),(null),(null),(null),(null),(null),(null),(null),(null),(nu
         ll),(null)
         patch :

       (null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(
         null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(n
         ull),(null),(null),(null),(null),(null),(null),(null),(null),(null),(nu
         ll),(null)
         pm_blacklist : Y
         position_fix : -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-
         1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
         power_save : 0
         power_save_controller : Y
         probe_mask : -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-
         1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
         probe_only :
         0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
         single_cmd : -1
         snoop : -1

         !!Module: snd_usb_audio
         autoclock : Y
         device_setup :
         0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
         enable :

    Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y
         id :
         (null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(
         null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(n
         ull),(null),(null),(null),(null),(null),(null),(null),(null),(null),(nu
         ll),(null)
         ignore_ctl_error : N
         index : -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-
         1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
         pid : -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-
         1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
         quirk_alias :
         (null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(
         null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(n
         ull),(null),(null),(null),(null),(null),(null),(null),(null),(null),(nu
         ll),(null)
         use_vmalloc : Y
         vid :
    -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-
         1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1

         !!HDA-Intel Codec information
         !!---------------------------
         --startcollapse--

         Codec: Realtek ALC269VB
         Address: 0
         AFG Function Id: 0x1 (unsol 1)
         Vendor Id: 0x10ec0269
         Subsystem Id: 0x1025035b
         Revision Id: 0x100100
         No Modem Function Group found
         Default PCM:
         rates [0x560]: 44100 48000 96000 192000
         bits [0xe]: 16 20 24
         formats [0x1]: PCM
         Default Amp-In caps: N/A
         Default Amp-Out caps: N/A
         State of AFG node 0x01:
         Power states: D0 D1 D2 D3 CLKSTOP EPSS
         Power: setting=D0, actual=D0
         GPIO: io=2, o=0, i=0, unsolicited=1, wake=0
         IO[0]: enable=0, dir=0, wake=0, sticky=0, data=0, unsol=0
         IO[1]: enable=0, dir=0, wake=0, sticky=0, data=0, unsol=0

    Node 0x02 [Audio Output] wcaps 0x1d: Stereo Amp-Out
         Control: name="Headphone Playback Volume", index=0, device=0
         ControlAmp: chs=3, dir=Out, idx=0, ofs=0
         Device: name="ALC269VB Analog", type="Audio", device=0
         Amp-Out caps: ofs=0x57, nsteps=0x57, stepsize=0x02, mute=0
         Amp-Out vals: [0x00 0x00]
         Converter: stream=5, channel=0
         PCM:
         rates [0x560]: 44100 48000 96000 192000
         bits [0xe]: 16 20 24
         formats [0x1]: PCM
         Node 0x03 [Audio Output] wcaps 0x1d: Stereo Amp-Out
         Control: name="Speaker Playback Volume", index=0, device=0
         ControlAmp: chs=3, dir=Out, idx=0, ofs=0
         Amp-Out caps: ofs=0x57, nsteps=0x57, stepsize=0x02, mute=0
         Amp-Out vals: [0x51 0x51]
         Converter: stream=5, channel=0
         PCM:
         rates [0x560]: 44100 48000 96000 192000
         bits [0xe]: 16 20 24
         formats [0x1]: PCM
         Node 0x04 [Vendor
    Defined Widget] wcaps 0xf00000: Mono
         Node 0x05 [Vendor Defined Widget] wcaps 0xf00000: Mono
         Node 0x06 [Audio Output] wcaps 0x211: Stereo Digital
         Control: name="IEC958 Playback Con Mask", index=0, device=0
         Control: name="IEC958 Playback Pro Mask", index=0, device=0
         Control: name="IEC958 Playback Default", index=0, device=0
         Control: name="IEC958 Playback Switch", index=0, device=0
         Control: name="IEC958 Default PCM Playback Switch", index=0, device=0
         Device: name="ALC269VB Digital", type="SPDIF", device=1
         Converter: stream=5, channel=0
         Digital:
         Digital category: 0x0
         IEC Coding Type: 0x0
         PCM:
         rates [0x5e0]: 44100 48000 88200 96000 192000
         bits [0xe]: 16 20 24
         formats [0x1]: PCM
         Node 0x07 [Vendor Defined Widget] wcaps 0xf00000: Mono
         Node 0x08 [Audio Input] wcaps 0x10011b: Stereo Amp-In
         Amp-In caps:
    ofs=0x0b, nsteps=0x1f, stepsize=0x05, mute=1
         Amp-In vals: [0x8b 0x8b]
         Converter: stream=0, channel=0
         SDI-Select: 0
         PCM:
         rates [0x560]: 44100 48000 96000 192000
         bits [0xe]: 16 20 24
         formats [0x1]: PCM
         Connection: 1
         0x23
         Node 0x09 [Audio Input] wcaps 0x10011b: Stereo Amp-In
         Control: name="Capture Volume", index=0, device=0
         ControlAmp: chs=3, dir=In, idx=0, ofs=0
         Control: name="Capture Switch", index=0, device=0
         ControlAmp: chs=3, dir=In, idx=0, ofs=0
         Device: name="ALC269VB Analog", type="Audio", device=0
         Amp-In caps: ofs=0x0b, nsteps=0x1f, stepsize=0x05, mute=1
         Amp-In vals: [0x00 0x00]
         Converter: stream=1, channel=0
         SDI-Select: 0
         PCM:
         rates [0x560]: 44100 48000 96000 192000
         bits [0xe]: 16 20 24
         formats [0x1]: PCM
         Connection: 1
         0x22

      Node 0x0a [Vendor Defined Widget] wcaps 0xf00000: Mono
         Node 0x0b [Audio Mixer] wcaps 0x20010b: Stereo Amp-In
         Control: name="Mic Playback Volume", index=0, device=0
         ControlAmp: chs=3, dir=In, idx=0, ofs=0
         Control: name="Mic Playback Switch", index=0, device=0
         ControlAmp: chs=3, dir=In, idx=0, ofs=0
         Control: name="Beep Playback Volume", index=0, device=0
         ControlAmp: chs=3, dir=In, idx=4, ofs=0
         Control: name="Beep Playback Switch", index=0, device=0
         ControlAmp: chs=3, dir=In, idx=4, ofs=0
         Amp-In caps: ofs=0x17, nsteps=0x1f, stepsize=0x05, mute=1
         Amp-In vals: [0x80 0x80] [0x80 0x80] [0x80 0x80] [0x80 0x80] [0x80
         0x80]
         Connection: 5
         0x18 0x19 0x1a 0x1b 0x1d
         Node 0x0c [Audio Mixer] wcaps 0x20010b: Stereo Amp-In
         Amp-In caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
         Amp-In vals: [0x00 0x00] [0x80 0x80]

    Connection: 2
         0x02 0x0b
         Node 0x0d [Audio Mixer] wcaps 0x20010b: Stereo Amp-In
         Amp-In caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
         Amp-In vals: [0x00 0x00] [0x80 0x80]
         Connection: 2
         0x03 0x0b
         Node 0x0e [Vendor Defined Widget] wcaps 0xf00000: Mono
         Node 0x0f [Audio Mixer] wcaps 0x20010a: Mono Amp-In
         Amp-In caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
         Amp-In vals: [0x00] [0x80]
         Connection: 2
         0x02 0x0b
         Node 0x10 [Vendor Defined Widget] wcaps 0xf00000: Mono
         Node 0x11 [Vendor Defined Widget] wcaps 0xf00000: Mono
         Node 0x12 [Pin Complex] wcaps 0x40000b: Stereo Amp-In
         Control: name="Internal Mic Boost Volume", index=0, device=0
         ControlAmp: chs=3, dir=In, idx=0, ofs=0
         Amp-In caps: ofs=0x00, nsteps=0x03, stepsize=0x2f, mute=0
         Amp-In vals: [0x00 0x00]
         Pincap 0x00000020: IN
         Pin
    Default 0x99a30930: [Fixed] Mic at Int ATAPI
         Conn = ATAPI, Color = Unknown
         DefAssociation = 0x3, Sequence = 0x0
         Misc = NO_PRESENCE
         Pin-ctls: 0x20: IN
         Node 0x13 [Vendor Defined Widget] wcaps 0xf00000: Mono
         Node 0x14 [Pin Complex] wcaps 0x40018d: Stereo Amp-Out
         Control: name="Speaker Playback Switch", index=0, device=0
         ControlAmp: chs=3, dir=Out, idx=0, ofs=0
         Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
         Amp-Out vals: [0x00 0x00]
         Pincap 0x00010014: OUT EAPD Detect
         EAPD 0x2: EAPD
         Pin Default 0x99130110: [Fixed] Speaker at Int ATAPI
         Conn = ATAPI, Color = Unknown
         DefAssociation = 0x1, Sequence = 0x0
         Misc = NO_PRESENCE
         Pin-ctls: 0x40: OUT
         Unsolicited: tag=00, enabled=0
         Connection: 2
         0x0c 0x0d*
         Node 0x15 [Vendor Defined Widget] wcaps 0xf00000: Mono
         Node 0x16
    [Vendor Defined Widget] wcaps 0xf00000: Mono
         Node 0x17 [Pin Complex] wcaps 0x40010c: Mono Amp-Out
         Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
         Amp-Out vals: [0x80]
         Pincap 0x00000010: OUT
         Pin Default 0x411111f0: [N/A] Speaker at Ext Rear
         Conn = 1/8, Color = Black
         DefAssociation = 0xf, Sequence = 0x0
         Misc = NO_PRESENCE
         Pin-ctls: 0x00:
         Connection: 1
         0x0f
         Node 0x18 [Pin Complex] wcaps 0x40018f: Stereo Amp-In Amp-Out
         Control: name="Mic Boost Volume", index=0, device=0
         ControlAmp: chs=3, dir=In, idx=0, ofs=0
         Amp-In caps: ofs=0x00, nsteps=0x03, stepsize=0x2f, mute=0
         Amp-In vals: [0x00 0x00]
         Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
         Amp-Out vals: [0x80 0x80]
         Pincap 0x00001734: IN OUT Detect
         Vref caps: HIZ 50 GRD 80
         Pin Default 0x03a19840: [Jack] Mic at
    Ext Left
         Conn = 1/8, Color = Pink
         DefAssociation = 0x4, Sequence = 0x0
         Pin-ctls: 0x24: IN VREF_80
         Unsolicited: tag=02, enabled=1
         Connection: 1
         0x0d
         Node 0x19 [Pin Complex] wcaps 0x40008b: Stereo Amp-In
         Amp-In caps: ofs=0x00, nsteps=0x03, stepsize=0x2f, mute=0
         Amp-In vals: [0x00 0x00]
         Pincap 0x00001724: IN Detect
         Vref caps: HIZ 50 GRD 80
         Pin Default 0x411111f0: [N/A] Speaker at Ext Rear
         Conn = 1/8, Color = Black
         DefAssociation = 0xf, Sequence = 0x0
         Misc = NO_PRESENCE
         Pin-ctls: 0x20: IN VREF_HIZ
         Unsolicited: tag=00, enabled=0
         Node 0x1a [Pin Complex] wcaps 0x40018f: Stereo Amp-In Amp-Out
         Amp-In caps: ofs=0x00, nsteps=0x03, stepsize=0x2f, mute=0
         Amp-In vals: [0x00 0x00]
         Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
         Amp-Out vals: [0x80 0x80]
         Pincap
    0x0000003c: IN OUT HP Detect
         Pin Default 0x411111f0: [N/A] Speaker at Ext Rear
         Conn = 1/8, Color = Black
         DefAssociation = 0xf, Sequence = 0x0
         Misc = NO_PRESENCE
         Pin-ctls: 0x20: IN
         Unsolicited: tag=00, enabled=0
         Connection: 2
         0x0c* 0x0d
         Node 0x1b [Pin Complex] wcaps 0x40018f: Stereo Amp-In Amp-Out
         Amp-In caps: ofs=0x00, nsteps=0x03, stepsize=0x2f, mute=0
         Amp-In vals: [0x00 0x00]
         Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
         Amp-Out vals: [0x80 0x80]
         Pincap 0x00000034: IN OUT Detect
         Pin Default 0x411111f0: [N/A] Speaker at Ext Rear
         Conn = 1/8, Color = Black
         DefAssociation = 0xf, Sequence = 0x0
         Misc = NO_PRESENCE
         Pin-ctls: 0x20: IN
         Unsolicited: tag=00, enabled=0
         Connection: 2
         0x0c* 0x0d
         Node 0x1c [Vendor Defined Widget] wcaps 0xf00000: Mono

       Node 0x1d [Pin Complex] wcaps 0x400000: Mono
         Pincap 0x00000020: IN
         Pin Default 0x4017992d: [N/A] Speaker at Ext N/A
         Conn = Analog, Color = Pink
         DefAssociation = 0x2, Sequence = 0xd
         Misc = NO_PRESENCE
         Pin-ctls: 0x20: IN
         Node 0x1e [Pin Complex] wcaps 0x400381: Stereo Digital
         Pincap 0x00000014: OUT Detect
         Pin Default 0x03451120: [Jack] SPDIF Out at Ext Left
         Conn = Optical, Color = Black
         DefAssociation = 0x2, Sequence = 0x0
         Misc = NO_PRESENCE
         Pin-ctls: 0x40: OUT
         Unsolicited: tag=00, enabled=0
         Connection: 1
         0x06
         Node 0x1f [Vendor Defined Widget] wcaps 0xf00000: Mono
         Node 0x20 [Vendor Defined Widget] wcaps 0xf00040: Mono
         Processing caps: benign=0, ncoeff=25
         Node 0x21 [Pin Complex] wcaps 0x40018d: Stereo Amp-Out
         Control: name="Headphone Playback Switch", index=0, device=0

     ControlAmp: chs=3, dir=Out, idx=0, ofs=0
         Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
         Amp-Out vals: [0x80 0x80]
         Pincap 0x0000001c: OUT HP Detect
         Pin Default 0x0321101f: [Jack] HP Out at Ext Left
         Conn = 1/8, Color = Black
         DefAssociation = 0x1, Sequence = 0xf
         Pin-ctls: 0xc0: OUT HP
         Unsolicited: tag=01, enabled=1
         Connection: 2
         0x0c* 0x0d
         Node 0x22 [Audio Selector] wcaps 0x30010b: Stereo Amp-In
         Amp-In caps: N/A
         Amp-In vals: [0x00 0x00] [0x00 0x00] [0x00 0x00] [0x00 0x00] [0x00
         0x00] [0x00 0x00] [0x00 0x00]
         Connection: 7
         0x18 0x19 0x1a 0x1b 0x1d 0x0b 0x12*
         Node 0x23 [Audio Mixer] wcaps 0x20010b: Stereo Amp-In
         Amp-In caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
         Amp-In vals: [0x80 0x80] [0x80 0x80] [0x80 0x80] [0x80 0x80] [0x80
         0x80] [0x80 0x80]
         Connection: 6
         0x18 0x19 0x1a 0x1b 0x1d 0x0b
         Codec: Nvidia Generic
         Address: 0
         AFG Function Id: 0x1 (unsol 0)
         Vendor Id: 0x10de000a
         Subsystem Id: 0x10de0101
         Revision Id: 0x100100
         No Modem Function Group found
         Default PCM:
         rates [0x0]:
         bits [0x0]:
         formats [0x0]:
         Default Amp-In caps: N/A
         Default Amp-Out caps: N/A
         State of AFG node 0x01:
         Power states: D0 D1 D2 D3
         Power: setting=D0, actual=D0
         GPIO: io=0, o=0, i=0, unsolicited=0, wake=0
         Node 0x04 [Audio Output] wcaps 0x72b1: 8-Channels Digital Stripe CP
         Control: name="IEC958 Playback Con Mask", index=0, device=0
         Control: name="IEC958 Playback Pro Mask", index=0, device=0
         Control: name="IEC958 Playback Default", index=0, device=0
         Control: name="IEC958 Playback Switch", index=0, device=0
         Device: name="Generic Digital",
    type="HDMI", device=3
         Converter: stream=0, channel=0
         Digital: Enabled
         Digital category: 0x0
         IEC Coding Type: 0x0
         PCM:
         rates [0x7f0]: 32000 44100 48000 88200 96000 176400 192000
         bits [0xe]: 16 20 24
         formats [0x5]: PCM AC3
         Unsolicited: tag=00, enabled=0
         Node 0x05 [Pin Complex] wcaps 0x407381: 8-Channels Digital CP
         Pincap 0x09000094: OUT Detect HBR HDMI DP
         Pin Default 0x18560010: [Jack] Digital Out at Int HDMI
         Conn = Digital, Color = Unknown
         DefAssociation = 0x1, Sequence = 0x0
         Pin-ctls: 0x40: OUT
         Unsolicited: tag=01, enabled=1
         Connection: 1
         0x04
         Codec: Nvidia Generic
         Address: 1
         AFG Function Id: 0x1 (unsol 0)
         Vendor Id: 0x10de000a
         Subsystem Id: 0x10de0101
         Revision Id: 0x100100
         No Modem Function Group found
         Default PCM:

    rates [0x0]:
         bits [0x0]:
         formats [0x0]:
         Default Amp-In caps: N/A
         Default Amp-Out caps: N/A
         State of AFG node 0x01:
         Power states: D0 D1 D2 D3
         Power: setting=D0, actual=D0
         GPIO: io=0, o=0, i=0, unsolicited=0, wake=0
         Node 0x04 [Audio Output] wcaps 0x72b1: 8-Channels Digital Stripe CP
         Control: name="IEC958 Playback Con Mask", index=1, device=0
         Control: name="IEC958 Playback Pro Mask", index=1, device=0
         Control: name="IEC958 Playback Default", index=1, device=0
         Control: name="IEC958 Playback Switch", index=1, device=0
         Device: name="Generic Digital", type="HDMI", device=7
         Converter: stream=0, channel=0
         Digital: Enabled
         Digital category: 0x0
         IEC Coding Type: 0x0
         PCM:
         rates [0x7f0]: 32000 44100 48000 88200 96000 176400 192000
         bits [0xe]: 16 20 24
         formats [0x5]: PCM AC3

        Unsolicited: tag=00, enabled=0
         Node 0x05 [Pin Complex] wcaps 0x407381: 8-Channels Digital CP
         Pincap 0x09000094: OUT Detect HBR HDMI DP
         Pin Default 0x18560010: [Jack] Digital Out at Int HDMI
         Conn = Digital, Color = Unknown
         DefAssociation = 0x1, Sequence = 0x0
         Pin-ctls: 0x40: OUT
         Unsolicited: tag=01, enabled=1
         Connection: 1
         0x04
         Codec: Nvidia Generic
         Address: 2
         AFG Function Id: 0x1 (unsol 0)
         Vendor Id: 0x10de000a
         Subsystem Id: 0x10de0101
         Revision Id: 0x100100
         No Modem Function Group found
         Default PCM:
         rates [0x0]:
         bits [0x0]:
         formats [0x0]:
         Default Amp-In caps: N/A
         Default Amp-Out caps: N/A
         State of AFG node 0x01:
         Power states: D0 D1 D2 D3
         Power: setting=D0, actual=D0
         GPIO: io=0, o=0, i=0, unsolicited=0, wake=0
         Node
    0x04 [Audio Output] wcaps 0x72b1: 8-Channels Digital Stripe CP
         Control: name="IEC958 Playback Con Mask", index=2, device=0
         Control: name="IEC958 Playback Pro Mask", index=2, device=0
         Control: name="IEC958 Playback Default", index=2, device=0
         Control: name="IEC958 Playback Switch", index=2, device=0
         Device: name="Generic Digital", type="HDMI", device=8
         Converter: stream=0, channel=0
         Digital: Enabled
         Digital category: 0x0
         IEC Coding Type: 0x0
         PCM:
         rates [0x7f0]: 32000 44100 48000 88200 96000 176400 192000
         bits [0xe]: 16 20 24
         formats [0x5]: PCM AC3
         Unsolicited: tag=00, enabled=0
         Node 0x05 [Pin Complex] wcaps 0x407381: 8-Channels Digital CP
         Pincap 0x09000094: OUT Detect HBR HDMI DP
         Pin Default 0x18560010: [Jack] Digital Out at Int HDMI
         Conn = Digital, Color = Unknown
         DefAssociation = 0x1, Sequence =
    0x0
         Pin-ctls: 0x40: OUT
         Unsolicited: tag=01, enabled=1
         Connection: 1
         0x04
         Codec: Nvidia Generic
         Address: 3
         AFG Function Id: 0x1 (unsol 0)
         Vendor Id: 0x10de000a
         Subsystem Id: 0x10de0101
         Revision Id: 0x100100
         No Modem Function Group found
         Default PCM:
         rates [0x0]:
         bits [0x0]:
         formats [0x0]:
         Default Amp-In caps: N/A
         Default Amp-Out caps: N/A
         State of AFG node 0x01:
         Power states: D0 D1 D2 D3
         Power: setting=D0, actual=D0
         GPIO: io=0, o=0, i=0, unsolicited=0, wake=0
         Node 0x04 [Audio Output] wcaps 0x72b1: 8-Channels Digital Stripe CP
         Control: name="IEC958 Playback Con Mask", index=3, device=0
         Control: name="IEC958 Playback Pro Mask", index=3, device=0
         Control: name="IEC958 Playback Default", index=3, device=0
         Control: name="IEC958
    Playback Switch", index=3, device=0
         Device: name="Generic Digital", type="HDMI", device=9
         Converter: stream=5, channel=0
         Digital: Enabled
         Digital category: 0x0
         IEC Coding Type: 0x0
         PCM:
         rates [0x7f0]: 32000 44100 48000 88200 96000 176400 192000
         bits [0xe]: 16 20 24
         formats [0x5]: PCM AC3
         Unsolicited: tag=00, enabled=0
         Node 0x05 [Pin Complex] wcaps 0x407381: 8-Channels Digital CP
         Pincap 0x09000094: OUT Detect HBR HDMI DP
         Pin Default 0x18560010: [Jack] Digital Out at Int HDMI
         Conn = Digital, Color = Unknown
         DefAssociation = 0x1, Sequence = 0x0
         Pin-ctls: 0x40: OUT
         Unsolicited: tag=01, enabled=1
         Connection: 1
         0x04
         --endcollapse--

         !!USB Mixer information
         !!---------------------
         --startcollapse--

         USB Mixer: usb_id=0x06f8b121,
    ctrlif=0, ctlerr=0
         Card: Guillemot Corporation Hercules P32 DJ at usb-0000:00:1d.0-1.4,
         full speed
         Unit: 2
         Control: name="PCM Playback Volume", index=0
         Info: id=2, control=2, cmask=0xf, channels=4, type="S16"
         Volume: min=-25600, max=0, dBmin=-10000, dBmax=0
         Unit: 2
         Control: name="PCM Playback Switch", index=0
         Info: id=2, control=1, cmask=0xf, channels=4, type="INV_BOOLEAN"
         Volume: min=0, max=1, dBmin=0, dBmax=0
         --endcollapse--

         !!ALSA Device nodes
         !!-----------------

         crw-rw----. 1 root audio 116, 6 Mar 20 18:15 /dev/snd/controlC0
         crw-rw----. 1 root audio 116, 15 Mar 20 18:15 /dev/snd/controlC1
         crw-rw----. 1 root audio 116, 18 Mar 20 21:25 /dev/snd/controlC2
         crw-rw----. 1 root audio 116, 5 Mar 20 18:15 /dev/snd/hwC0D0
         crw-rw----. 1 root audio 116, 11 Mar 20 18:15 /dev/snd/hwC1D0

    crw-rw----. 1 root audio 116, 12 Mar 20 18:15 /dev/snd/hwC1D1
         crw-rw----. 1 root audio 116, 13 Mar 20 18:15 /dev/snd/hwC1D2
         crw-rw----. 1 root audio 116, 14 Mar 20 18:15 /dev/snd/hwC1D3
         crw-rw----. 1 root audio 116, 17 Mar 20 21:25 /dev/snd/midiC2D0
         crw-rw----. 1 root audio 116, 3 Mar 20 19:58 /dev/snd/pcmC0D0c
         crw-rw----. 1 root audio 116, 2 Mar 20 20:40 /dev/snd/pcmC0D0p
         crw-rw----. 1 root audio 116, 4 Mar 20 19:58 /dev/snd/pcmC0D1p
         crw-rw----. 1 root audio 116, 7 Mar 20 19:58 /dev/snd/pcmC1D3p
         crw-rw----. 1 root audio 116, 8 Mar 20 19:58 /dev/snd/pcmC1D7p
         crw-rw----. 1 root audio 116, 9 Mar 20 19:58 /dev/snd/pcmC1D8p
         crw-rw----. 1 root audio 116, 10 Mar 20 19:58 /dev/snd/pcmC1D9p
         crw-rw----. 1 root audio 116, 16 Mar 20 21:32 /dev/snd/pcmC2D0p
         crw-rw----. 1 root audio 116, 1 Mar 20 17:19 /dev/snd/seq
         crw-rw----. 1 root audio 116, 33 Mar 20 18:15
    /dev/snd/timer

         /dev/snd/by-id:
         total 0
         drwxr-xr-x. 2 root root 60 Mar 20 21:25 .
         drwxr-xr-x. 4 root root 460 Mar 20 21:25 ..
         lrwxrwxrwx. 1 root root 12 Mar 20 21:25 usb-
         Guillemot_Corporation_Hercules_P32_DJ-00 -> ../controlC2

         /dev/snd/by-path:
         total 0
         drwxr-xr-x. 2 root root 100 Mar 20 21:25 .
         drwxr-xr-x. 4 root root 460 Mar 20 21:25 ..
         lrwxrwxrwx. 1 root root 12 Mar 20 18:15 pci-0000:00:1b.0 ->
         ../controlC0
         lrwxrwxrwx. 1 root root 12 Mar 20 21:25 pci-0000:00:1d.0-usb-0:1.4:1.0
         -> ../controlC2
         lrwxrwxrwx. 1 root root 12 Mar 20 18:15 pci-0000:01:00.1 ->
         ../controlC1

         !!Aplay/Arecord output
         !!--------------------

         APLAY

         **** List of PLAYBACK Hardware Devices ****
         card 0: MID [HDA Intel MID], device 0: ALC269VB Analog
    [ALC269VB
         Analog]
         Subdevices: 1/1
         Subdevice #0: subdevice #0
         card 0: MID [HDA Intel MID], device 1: ALC269VB Digital [ALC269VB
         Digital]
         Subdevices: 1/1
         Subdevice #0: subdevice #0
         card 1: NVidia [HDA NVidia], device 3: Generic Digital [Generic
         Digital]
         Subdevices: 1/1
         Subdevice #0: subdevice #0
         card 1: NVidia [HDA NVidia], device 7: Generic Digital [Generic
         Digital]
         Subdevices: 1/1
         Subdevice #0: subdevice #0
         card 1: NVidia [HDA NVidia], device 8: Generic Digital [Generic
         Digital]
         Subdevices: 1/1
         Subdevice #0: subdevice #0
         card 1: NVidia [HDA NVidia], device 9: Generic Digital [Generic
         Digital]
         Subdevices: 1/1
         Subdevice #0: subdevice #0
         card 2: DJ [Hercules P32 DJ], device 0: USB Audio [USB Audio]
         Subdevices: 1/1
         Subdevice #0:
    subdevice #0

         ARECORD

         **** List of CAPTURE Hardware Devices ****
         card 0: MID [HDA Intel MID], device 0: ALC269VB Analog [ALC269VB
         Analog]
         Subdevices: 1/1
         Subdevice #0: subdevice #0

         !!Amixer output
         !!-------------

         !!-------Mixer controls for card 0 [MID]

         Card hw:0 'MID'/'HDA Intel MID at 0xb7100000 irq 27'
         Mixer name : 'Realtek ALC269VB'
         Components : 'HDA:10ec0269,1025035b,00100100'
         Controls : 31
         Simple ctrls : 14
         Simple mixer control 'Master',0
         Capabilities: pvolume pvolume-joined pswitch pswitch-joined
         Playback channels: Mono
         Limits: Playback 0 - 87
         Mono: Playback 81 [93%] [-4.50dB] [on]
         Simple mixer control 'Headphone',0
         Capabilities: pvolume pswitch
         Playback channels: Front Left - Front Right
         Limits:
    Playback 0 - 87
         Mono:
         Front Left: Playback 0 [0%] [-65.25dB] [off]
         Front Right: Playback 0 [0%] [-65.25dB] [off]
         Simple mixer control 'Speaker',0
         Capabilities: pvolume pswitch
         Playback channels: Front Left - Front Right
         Limits: Playback 0 - 87
         Mono:
         Front Left: Playback 87 [100%] [0.00dB] [on]
         Front Right: Playback 87 [100%] [0.00dB] [on]
         Simple mixer control 'PCM',0
         Capabilities: pvolume
         Playback channels: Front Left - Front Right
         Limits: Playback 0 - 255
         Mono:
         Front Left: Playback 128 [50%] [-25.40dB]
         Front Right: Playback 128 [50%] [-25.40dB]
         Simple mixer control 'Mic',0
         Capabilities: pvolume pswitch
         Playback channels: Front Left - Front Right
         Limits: Playback 0 - 31
         Mono:
         Front Left: Playback 0 [0%] [-34.50dB] [off]
         Front Right: Playback 0
    [0%] [-34.50dB] [off]
         Sim

On Fri, 22 Mar 2019 11:04:01 +0100, Guido Trentalancia wrote:

Hello Takashi,

I am using the latest version of everything, including kernel and ALSA userspace library / tools.

The other user has exactly the same hardware and has tested same firmware (both 1.36 and latest 1.46), but with Fedora 29 and it is working.

Perhaps Fedora 29 has a different version of the ALSA library, I will find out, try to downgrade, test again and report back.

Yes, that'd be really helpful. If aligning the software doesn't fix the issue, it's either because of the hardware or the difference of usage patterns.

thanks,

Takashi

Guido

Il 22 marzo 2019 10:53:11 CET, Takashi Iwai tiwai@suse.de ha scritto:

On Fri, 22 Mar 2019 10:17:17 +0100,
Guido Trentalancia wrote:

     It cannot be a firmware bug, as you say, because:

     - it does NOT happen on Windows!

It doesn't mean that the device behaves correctly as advertised.

     - it does NOT even always happen on Linux: other users (with different kernel
     / ALSA library) are not experiencing the same problem;
     - it happens with several firmware versions, including the latest one (1.36
     and 1.46).

     So it is either a bug in ALSA kernel driver, USB sound driver (more likely) or
     ALSA library.

     Now, you are in charge of the USB sound driver, can you please double check??

If it doesn't happen for other users with the very same device, you'd
need to identify what's the difference between your case and others.
For example, if the difference of alsa-lib matters, you can try the
very same condition.

This kind of bug can't be easily debugged without the actual
hardware, unfortunately.

Takashi

     Regards,

     Guido

     Il 22 marzo 2019 09:55:52 CET, Takashi Iwai <tiwai@suse.de> ha scritto:

         On Thu, 21 Mar 2019 23:27:46 +0100,
         Guido Trentalancia wrote:

              I wonder if this might be due to a bug in the "USB Audio Driver for Alsa"?

              https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/sound/usb

              https://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git/tree/sound/usb

         More likely a buggy firmware of your USB audio device :)

          From the driver implementation POV, both audio and MIDI devices are
         handled by individual endpoints, hence they shouldn't conflict.

         Or another possibility would be some USB host side issue like the
         bandwidth.  But
         it's a MIDI stream that is very low data rate, so this
         sounds also unlikely...

         thanks,

         Takashi

              Guido

                  On the 20th of March 2019 at 21.47 Guido
    Trentalancia
                  <guido@trentalancia.com wrote:

                  Hello.

                  I am hitting a very serious bug (ALSA kernel driver or ALSA library)
                  when using the Hercules P32 DJ audio interface.

                  The sound is severely distorted during MIDI transfers.

                  To reproduce:

                    + start playing something in a first console:

                  console1# AUDIODEV=hw:2,0 play audio.wav

                    + the audio plays fine

                    + now start "amidi" in a second console while the above track is still
                      playing

                  console2#
             amidi -p hw:2,0,0 -d

                    + the sound is now severely distorted (basically noise, with some
    hard-
                      to-distinguish features resembling the original track) until "amidi"
                      is
                      interrupted !

                  Kernel versions tested: from 4.12 up to 5.0.2 (latest).

                  NOTES: Always reproducible. Same device is working fine on Windows.

                  The output from alsa-info.sh and lsusb -v follows.

                  upload=true&script=true&cardinfo=
                  !!################################
                  !!ALSA Information Script v 0.4.64
                  !!################################

                  !!Script ran on: Wed Mar 20 20:44:36 UTC 2019

                  !!Linux Distribution
                  !!------------------

                  !!DMI Information

    !!---------------

                  Manufacturer: Acer
                  Product Name: Aspire 5745G

              Product Version: V1.19
                  Firmware Version: V1.19
                  Board Vendor: Acer
                  Board Name: JV51_CP

                  !!ACPI Device Status Information
                  !!---------------

                  /sys/bus/acpi/devices/PNP0103:00/status 15
                  /sys/bus/acpi/devices/PNP0C0A:00/status 31
                  /sys/bus/acpi/devices/PNP0C0F:00/status 9
                  /sys/bus/acpi/devices/PNP0C0F:01/status 9
                  /sys/bus/acpi/devices/PNP0C0F:02/status 9
                  /sys/bus/acpi/devices/PNP0C0F:03/status 9
                  /sys/bus/acpi/devices/PNP0C0F:04/status 9
                  /sys/bus/acpi/devices/PNP0C0F:05/status 9
                  /sys/bus/acpi/devices/PNP0C0F:06/status 9

    /sys/bus/acpi/devices/PNP0C0F:07/status 9

                  !!Kernel Information
                  !!------------------

                  Kernel release: 5.0.2
                  Operating System: GNU/Linux
                  Architecture: x86_64
                  Processor: unknown
                  SMP Enabled: Yes

                  !!ALSA
             Version
                  !!------------

                  Driver version: k5.0.2
                  Library version: 1.1.8
                  Utilities version: 1.1.8

                  !!Loaded ALSA modules
                  !!-------------------

                  snd_hda_intel
                  snd_hda_intel
                  snd_usb_audio

                  !!Sound Servers on this system
                  !!----------------------------

    Pulseaudio:
                  Installed - Yes (/usr/bin/pulseaudio)
                  Running - No

                  Jack:
                  Installed - Yes (/usr/bin/jackd)
                  Running - No

                  !!Soundcards recognised by ALSA
                  !!-----------------------------

                  0 [MID ]: HDA-Intel - HDA Intel MID
                  HDA Intel MID at 0xb7100000 irq 27
                  1 [NVidia ]: HDA-Intel - HDA NVidia
                  HDA NVidia at 0xb3000000 irq 16
                  2 [DJ ]: USB-Audio - Hercules P32 DJ
                  Guillemot Corporation Hercules P32 DJ at usb-

             0000:00:1d.0-1.4, full speed

                  !!PCI Soundcards installed in the system
                  !!
    ----------------------------------------------------------------------

                  00:1b.0 Audio device: Intel Corporation 5 Series/3400 Series Chipset

    High Definition Audio (rev 05)
                  01:00.1 Audio device: NVIDIA Corporation GT216 HDMI Audio Controller
                  (rev a1)

                  !!Advanced information - PCI Vendor/Device/Subsystem ID's
                  !!
    ----------------------------------------------------------------------

                  00:1b.0 0403: 8086:3b56 (rev 05)

                  Subsystem: 1025:035b
                  --
                  01:00.1 0403: 10de:0be2 (rev a1)
                  Subsystem: 1025:035a

                  !!Loaded sound module options
                  !!---------------------------

                  !!Module: snd_hda_intel
                  align_buffer_size : -1
                  bdl_pos_adj : -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-
                  1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
                  beep_mode :

    N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N
                  enable :
                  Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y
                  enable_msi : -1
                  id :
                  (null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(
                  null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(n
                  ull),(null),(null),(null),(null),(null),(null),(null),(null),(null),(nu
                  ll),(null)
                  index : -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-
                  1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
                  jackpoll_ms :
                  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
                  model :
                  (null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(

    null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(n
                  ull),(null),(null),(null),(null),(null),(null),(null),(null),(null),(nu
                  ll),(null)
                  patch :

                (null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(
                  null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(n
                  ull),(null),(null),(null),(null),(null),(null),(null),(null),(null),(nu
                  ll),(null)
                  pm_blacklist : Y
                  position_fix : -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-
                  1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
                  power_save : 0
                  power_save_controller : Y
                  probe_mask : -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-
                  1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
                  probe_only :

       0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
                  single_cmd : -1
                  snoop : -1

                  !!Module: snd_hda_intel
                  align_buffer_size : -1
                  bdl_pos_adj : -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-
                  1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
                  beep_mode :

             N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N
                  enable :
                  Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y
                  enable_msi : -1
                  id :
                  (null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(
                  null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(n
                  ull),(null),(null),(null),(null),(null),(null),(null),(null),(null),(nu
                  ll),(null)

           index : -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-
                  1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
                  jackpoll_ms :
                  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
                  model :
                  (null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(
                  null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(n
                  ull),(null),(null),(null),(null),(null),(null),(null),(null),(null),(nu
                  ll),(null)
                  patch :

                (null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(
                  null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(n
                  ull),(null),(null),(null),(null),(null),(null),(null),(null),(null),(nu
                  ll),(null)
                  pm_blacklist : Y
                  position_fix :
    -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-
                  1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
                  power_save : 0
                  power_save_controller : Y
                  probe_mask : -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-
                  1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
                  probe_only :
                  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
                  single_cmd : -1
                  snoop : -1

                  !!Module: snd_usb_audio
                  autoclock : Y
                  device_setup :
                  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
                  enable :

             Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y
                  id :
                  (null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(

    null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(n
                  ull),(null),(null),(null),(null),(null),(null),(null),(null),(null),(nu
                  ll),(null)
                  ignore_ctl_error : N
                  index : -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-
                  1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
                  pid : -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-
                  1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
                  quirk_alias :
                  (null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(
                  null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(n
                  ull),(null),(null),(null),(null),(null),(null),(null),(null),(null),(nu
                  ll),(null)
                  use_vmalloc : Y
                  vid :
             -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-

        1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1

                  !!HDA-Intel Codec information
                  !!---------------------------
                  --startcollapse--

                  Codec: Realtek ALC269VB
                  Address: 0
                  AFG Function Id: 0x1 (unsol 1)
                  Vendor Id: 0x10ec0269
                  Subsystem Id: 0x1025035b
                  Revision Id: 0x100100
                  No Modem Function Group found
                  Default PCM:
                  rates [0x560]: 44100 48000 96000 192000
                  bits [0xe]: 16 20 24
                  formats [0x1]: PCM
                  Default Amp-In caps: N/A
                  Default Amp-Out caps: N/A
                  State of AFG node 0x01:
                  Power states: D0 D1 D2 D3 CLKSTOP EPSS
                  Power: setting=D0, actual=D0
                  GPIO: io=2, o=0, i=0, unsolicited=1, wake=0

           IO[0]: enable=0, dir=0, wake=0, sticky=0, data=0, unsol=0
                  IO[1]: enable=0, dir=0, wake=0, sticky=0, data=0, unsol=0

             Node 0x02 [Audio Output] wcaps 0x1d: Stereo Amp-Out
                  Control: name="Headphone Playback Volume", index=0, device=0
                  ControlAmp: chs=3, dir=Out, idx=0, ofs=0
                  Device: name="ALC269VB Analog", type="Audio", device=0
                  Amp-Out caps: ofs=0x57, nsteps=0x57, stepsize=0x02, mute=0
                  Amp-Out vals: [0x00 0x00]
                  Converter: stream=5, channel=0
                  PCM:
                  rates [0x560]: 44100 48000 96000 192000
                  bits [0xe]: 16 20 24
                  formats [0x1]: PCM
                  Node 0x03 [Audio Output] wcaps 0x1d: Stereo Amp-Out
                  Control: name="Speaker Playback Volume", index=0, device=0
                  ControlAmp: chs=3, dir=Out, idx=0, ofs=0

         Amp-Out caps: ofs=0x57, nsteps=0x57, stepsize=0x02, mute=0
                  Amp-Out vals: [0x51 0x51]
                  Converter: stream=5, channel=0
                  PCM:
                  rates [0x560]: 44100 48000 96000 192000
                  bits [0xe]: 16 20 24
                  formats [0x1]: PCM
                  Node 0x04 [Vendor
             Defined Widget] wcaps 0xf00000: Mono
                  Node 0x05 [Vendor Defined Widget] wcaps 0xf00000: Mono
                  Node 0x06 [Audio Output] wcaps 0x211: Stereo Digital
                  Control: name="IEC958 Playback Con Mask", index=0, device=0
                  Control: name="IEC958 Playback Pro Mask", index=0, device=0
                  Control: name="IEC958 Playback Default", index=0, device=0
                  Control: name="IEC958 Playback Switch", index=0, device=0
                  Control: name="IEC958 Default PCM Playback Switch", index=0, device=0
                  Device: name="ALC269VB
    Digital", type="SPDIF", device=1
                  Converter: stream=5, channel=0
                  Digital:
                  Digital category: 0x0
                  IEC Coding Type: 0x0
                  PCM:
                  rates [0x5e0]: 44100 48000 88200 96000 192000
                  bits [0xe]: 16 20 24
                  formats [0x1]: PCM
                  Node 0x07 [Vendor Defined Widget] wcaps 0xf00000: Mono
                  Node 0x08 [Audio Input] wcaps 0x10011b: Stereo Amp-In
                  Amp-In caps:
             ofs=0x0b, nsteps=0x1f, stepsize=0x05, mute=1
                  Amp-In vals: [0x8b 0x8b]
                  Converter: stream=0, channel=0
                  SDI-Select: 0
                  PCM:
                  rates [0x560]: 44100 48000 96000 192000
                  bits [0xe]: 16 20 24
                  formats [0x1]: PCM
                  Connection: 1
                  0x23
                  Node 0x09 [Audio Input] wcaps
    0x10011b: Stereo Amp-In
                  Control: name="Capture Volume", index=0, device=0
                  ControlAmp: chs=3, dir=In, idx=0, ofs=0
                  Control: name="Capture Switch", index=0, device=0
                  ControlAmp: chs=3, dir=In, idx=0, ofs=0
                  Device: name="ALC269VB Analog", type="Audio", device=0
                  Amp-In caps: ofs=0x0b, nsteps=0x1f, stepsize=0x05, mute=1
                  Amp-In vals: [0x00 0x00]
                  Converter: stream=1, channel=0
                  SDI-Select: 0
                  PCM:
                  rates [0x560]: 44100 48000 96000 192000
                  bits [0xe]: 16 20 24
                  formats [0x1]: PCM
                  Connection: 1
                  0x22

               Node 0x0a [Vendor Defined Widget] wcaps 0xf00000: Mono
                  Node 0x0b [Audio Mixer] wcaps 0x20010b: Stereo Amp-In
                  Control: name="Mic Playback Volume",
    index=0, device=0
                  ControlAmp: chs=3, dir=In, idx=0, ofs=0
                  Control: name="Mic Playback Switch", index=0, device=0
                  ControlAmp: chs=3, dir=In, idx=0, ofs=0
                  Control: name="Beep Playback Volume", index=0, device=0
                  ControlAmp: chs=3, dir=In, idx=4, ofs=0
                  Control: name="Beep Playback Switch", index=0, device=0
                  ControlAmp: chs=3, dir=In, idx=4, ofs=0
                  Amp-In caps: ofs=0x17, nsteps=0x1f, stepsize=0x05, mute=1
                  Amp-In vals: [0x80 0x80] [0x80 0x80] [0x80 0x80] [0x80 0x80] [0x80
                  0x80]
                  Connection: 5
                  0x18 0x19 0x1a 0x1b 0x1d
                  Node 0x0c [Audio Mixer] wcaps 0x20010b: Stereo Amp-In
                  Amp-In caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
                  Amp-In vals: [0x00 0x00] [0x80 0x80]

             Connection:
    2
                  0x02 0x0b
                  Node 0x0d [Audio Mixer] wcaps 0x20010b: Stereo Amp-In
                  Amp-In caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
                  Amp-In vals: [0x00 0x00] [0x80 0x80]
                  Connection: 2
                  0x03 0x0b
                  Node 0x0e [Vendor Defined Widget] wcaps 0xf00000: Mono
                  Node 0x0f [Audio Mixer] wcaps 0x20010a: Mono Amp-In
                  Amp-In caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
                  Amp-In vals: [0x00] [0x80]
                  Connection: 2
                  0x02 0x0b
                  Node 0x10 [Vendor Defined Widget] wcaps 0xf00000: Mono
                  Node 0x11 [Vendor Defined Widget] wcaps 0xf00000: Mono
                  Node 0x12 [Pin Complex] wcaps 0x40000b: Stereo Amp-In
                  Control: name="Internal Mic Boost Volume", index=0, device=0
                  ControlAmp: chs=3, dir=In, idx=0, ofs=0

              Amp-In caps: ofs=0x00, nsteps=0x03, stepsize=0x2f, mute=0
                  Amp-In vals: [0x00 0x00]
                  Pincap 0x00000020: IN
                  Pin
             Default 0x99a30930: [Fixed] Mic at Int ATAPI
                  Conn = ATAPI, Color = Unknown
                  DefAssociation = 0x3, Sequence = 0x0
                  Misc = NO_PRESENCE
                  Pin-ctls: 0x20: IN
                  Node 0x13 [Vendor Defined Widget] wcaps 0xf00000: Mono
                  Node 0x14 [Pin Complex] wcaps 0x40018d: Stereo Amp-Out
                  Control: name="Speaker Playback Switch", index=0, device=0
                  ControlAmp: chs=3, dir=Out, idx=0, ofs=0
                  Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
                  Amp-Out vals: [0x00 0x00]
                  Pincap 0x00010014: OUT EAPD Detect
                  EAPD 0x2: EAPD
                  Pin Default 0x99130110: [Fixed] Speaker at Int ATAPI

          Conn = ATAPI, Color = Unknown
                  DefAssociation = 0x1, Sequence = 0x0
                  Misc = NO_PRESENCE
                  Pin-ctls: 0x40: OUT
                  Unsolicited: tag=00, enabled=0
                  Connection: 2
                  0x0c 0x0d*
                  Node 0x15 [Vendor Defined Widget] wcaps 0xf00000: Mono
                  Node 0x16
             [Vendor Defined Widget] wcaps 0xf00000: Mono
                  Node 0x17 [Pin Complex] wcaps 0x40010c: Mono Amp-Out
                  Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
                  Amp-Out vals: [0x80]
                  Pincap 0x00000010: OUT
                  Pin Default 0x411111f0: [N/A] Speaker at Ext Rear
                  Conn = 1/8, Color = Black
                  DefAssociation = 0xf, Sequence = 0x0
                  Misc = NO_PRESENCE
                  Pin-ctls: 0x00:
                  Connection: 1
                  0x0f

    Node 0x18 [Pin Complex] wcaps 0x40018f: Stereo Amp-In Amp-Out
                  Control: name="Mic Boost Volume", index=0, device=0
                  ControlAmp: chs=3, dir=In, idx=0, ofs=0
                  Amp-In caps: ofs=0x00, nsteps=0x03, stepsize=0x2f, mute=0
                  Amp-In vals: [0x00 0x00]
                  Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
                  Amp-Out vals: [0x80 0x80]
                  Pincap 0x00001734: IN OUT Detect
                  Vref caps: HIZ 50 GRD 80
                  Pin Default 0x03a19840: [Jack] Mic at
             Ext Left
                  Conn = 1/8, Color = Pink
                  DefAssociation = 0x4, Sequence = 0x0
                  Pin-ctls: 0x24: IN VREF_80
                  Unsolicited: tag=02, enabled=1
                  Connection: 1
                  0x0d
                  Node 0x19 [Pin Complex] wcaps 0x40008b: Stereo Amp-In
                  Amp-In caps: ofs=0x00, nsteps=0x03,
    stepsize=0x2f, mute=0
                  Amp-In vals: [0x00 0x00]
                  Pincap 0x00001724: IN Detect
                  Vref caps: HIZ 50 GRD 80
                  Pin Default 0x411111f0: [N/A] Speaker at Ext Rear
                  Conn = 1/8, Color = Black
                  DefAssociation = 0xf, Sequence = 0x0
                  Misc = NO_PRESENCE
                  Pin-ctls: 0x20: IN VREF_HIZ
                  Unsolicited: tag=00, enabled=0
                  Node 0x1a [Pin Complex] wcaps 0x40018f: Stereo Amp-In Amp-Out
                  Amp-In caps: ofs=0x00, nsteps=0x03, stepsize=0x2f, mute=0
                  Amp-In vals: [0x00 0x00]
                  Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
                  Amp-Out vals: [0x80 0x80]
                  Pincap
             0x0000003c: IN OUT HP Detect
                  Pin Default 0x411111f0: [N/A] Speaker at Ext Rear
                  Conn = 1/8, Color = Black

    DefAssociation = 0xf, Sequence = 0x0
                  Misc = NO_PRESENCE
                  Pin-ctls: 0x20: IN
                  Unsolicited: tag=00, enabled=0
                  Connection: 2
                  0x0c* 0x0d
                  Node 0x1b [Pin Complex] wcaps 0x40018f: Stereo Amp-In Amp-Out
                  Amp-In caps: ofs=0x00, nsteps=0x03, stepsize=0x2f, mute=0
                  Amp-In vals: [0x00 0x00]
                  Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
                  Amp-Out vals: [0x80 0x80]
                  Pincap 0x00000034: IN OUT Detect
                  Pin Default 0x411111f0: [N/A] Speaker at Ext Rear
                  Conn = 1/8, Color = Black
                  DefAssociation = 0xf, Sequence = 0x0
                  Misc = NO_PRESENCE
                  Pin-ctls: 0x20: IN
                  Unsolicited: tag=00, enabled=0
                  Connection: 2
                  0x0c* 0x0d
                  Node 0x1c
    [Vendor Defined Widget] wcaps 0xf00000: Mono

                Node 0x1d [Pin Complex] wcaps 0x400000: Mono
                  Pincap 0x00000020: IN
                  Pin Default 0x4017992d: [N/A] Speaker at Ext N/A
                  Conn = Analog, Color = Pink
                  DefAssociation = 0x2, Sequence = 0xd
                  Misc = NO_PRESENCE
                  Pin-ctls: 0x20: IN
                  Node 0x1e [Pin Complex] wcaps 0x400381: Stereo Digital
                  Pincap 0x00000014: OUT Detect
                  Pin Default 0x03451120: [Jack] SPDIF Out at Ext Left
                  Conn = Optical, Color = Black
                  DefAssociation = 0x2, Sequence = 0x0
                  Misc = NO_PRESENCE
                  Pin-ctls: 0x40: OUT
                  Unsolicited: tag=00, enabled=0
                  Connection: 1
                  0x06
                  Node 0x1f [Vendor Defined Widget] wcaps 0xf00000: Mono
                  Node 0x20
    [Vendor Defined Widget] wcaps 0xf00040: Mono
                  Processing caps: benign=0, ncoeff=25
                  Node 0x21 [Pin Complex] wcaps 0x40018d: Stereo Amp-Out
                  Control: name="Headphone Playback Switch", index=0, device=0

              ControlAmp: chs=3, dir=Out, idx=0, ofs=0
                  Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
                  Amp-Out vals: [0x80 0x80]
                  Pincap 0x0000001c: OUT HP Detect
                  Pin Default 0x0321101f: [Jack] HP Out at Ext Left
                  Conn = 1/8, Color = Black
                  DefAssociation = 0x1, Sequence = 0xf
                  Pin-ctls: 0xc0: OUT HP
                  Unsolicited: tag=01, enabled=1
                  Connection: 2
                  0x0c* 0x0d
                  Node 0x22 [Audio Selector] wcaps 0x30010b: Stereo Amp-In
                  Amp-In caps: N/A
                  Amp-In vals: [0x00 0x00] [0x00 0x00]
    [0x00 0x00] [0x00 0x00] [0x00
                  0x00] [0x00 0x00] [0x00 0x00]
                  Connection: 7
                  0x18 0x19 0x1a 0x1b 0x1d 0x0b 0x12*
                  Node 0x23 [Audio Mixer] wcaps 0x20010b: Stereo Amp-In
                  Amp-In caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
                  Amp-In vals: [0x80 0x80] [0x80 0x80] [0x80 0x80] [0x80 0x80] [0x80
                  0x80] [0x80 0x80]
                  Connection: 6
                  0x18 0x19 0x1a 0x1b 0x1d 0x0b
                  Codec: Nvidia Generic
                  Address: 0
                  AFG Function Id: 0x1 (unsol 0)
                  Vendor Id: 0x10de000a
                  Subsystem Id: 0x10de0101
                  Revision Id: 0x100100
                  No Modem Function Group found
                  Default PCM:
                  rates [0x0]:
                  bits [0x0]:
                  formats [0x0]:
                  Default Amp-In caps: N/A

                Default Amp-Out caps: N/A
                  State of AFG node 0x01:
                  Power states: D0 D1 D2 D3
                  Power: setting=D0, actual=D0
                  GPIO: io=0, o=0, i=0, unsolicited=0, wake=0
                  Node 0x04 [Audio Output] wcaps 0x72b1: 8-Channels Digital Stripe CP
                  Control: name="IEC958 Playback Con Mask", index=0, device=0
                  Control: name="IEC958 Playback Pro Mask", index=0, device=0
                  Control: name="IEC958 Playback Default", index=0, device=0
                  Control: name="IEC958 Playback Switch", index=0, device=0
                  Device: name="Generic Digital",
             type="HDMI", device=3
                  Converter: stream=0, channel=0
                  Digital: Enabled
                  Digital category: 0x0
                  IEC Coding Type: 0x0
                  PCM:
                  rates [0x7f0]: 32000 44100 48000 88200 96000 176400 192000
                  bits [0xe]: 16 20 24
                  formats [0x5]: PCM AC3
                  Unsolicited: tag=00, enabled=0
                  Node 0x05 [Pin Complex] wcaps 0x407381: 8-Channels Digital CP
                  Pincap 0x09000094: OUT Detect HBR HDMI DP
                  Pin Default 0x18560010: [Jack] Digital Out at Int HDMI
                  Conn = Digital, Color = Unknown
                  DefAssociation = 0x1, Sequence = 0x0
                  Pin-ctls: 0x40: OUT
                  Unsolicited: tag=01, enabled=1
                  Connection: 1
                  0x04
                  Codec: Nvidia Generic
                  Address: 1
                  AFG Function Id: 0x1 (unsol 0)
                  Vendor Id: 0x10de000a
                  Subsystem Id: 0x10de0101
                  Revision Id: 0x100100
                  No Modem Function Group found
                  Default PCM:

             rates [0x0]:
                  bits
    [0x0]:
                  formats [0x0]:
                  Default Amp-In caps: N/A
                  Default Amp-Out caps: N/A
                  State of AFG node 0x01:
                  Power states: D0 D1 D2 D3
                  Power: setting=D0, actual=D0
                  GPIO: io=0, o=0, i=0, unsolicited=0, wake=0
                  Node 0x04 [Audio Output] wcaps 0x72b1: 8-Channels Digital Stripe CP
                  Control: name="IEC958 Playback Con Mask", index=1, device=0
                  Control: name="IEC958 Playback Pro Mask", index=1, device=0
                  Control: name="IEC958 Playback Default", index=1, device=0
                  Control: name="IEC958 Playback Switch", index=1, device=0
                  Device: name="Generic Digital", type="HDMI", device=7
                  Converter: stream=0, channel=0
                  Digital: Enabled
                  Digital category: 0x0
                  IEC Coding Type: 0x0
                  PCM:
                  rates [0x7f0]: 32000 44100 48000 88200 96000 176400 192000
                  bits [0xe]: 16 20 24
                  formats [0x5]: PCM AC3

                 Unsolicited: tag=00, enabled=0
                  Node 0x05 [Pin Complex] wcaps 0x407381: 8-Channels Digital CP
                  Pincap 0x09000094: OUT Detect HBR HDMI DP
                  Pin Default 0x18560010: [Jack] Digital Out at Int HDMI
                  Conn = Digital, Color = Unknown
                  DefAssociation = 0x1, Sequence = 0x0
                  Pin-ctls: 0x40: OUT
                  Unsolicited: tag=01, enabled=1
                  Connection: 1
                  0x04
                  Codec: Nvidia Generic
                  Address: 2
                  AFG Function Id: 0x1 (unsol 0)
                  Vendor Id: 0x10de000a
                  Subsystem Id: 0x10de0101
                  Revision Id: 0x100100
                  No Modem Function Group found

           Default PCM:
                  rates [0x0]:
                  bits [0x0]:
                  formats [0x0]:
                  Default Amp-In caps: N/A
                  Default Amp-Out caps: N/A
                  State of AFG node 0x01:
                  Power states: D0 D1 D2 D3
                  Power: setting=D0, actual=D0
                  GPIO: io=0, o=0, i=0, unsolicited=0, wake=0
                  Node
             0x04 [Audio Output] wcaps 0x72b1: 8-Channels Digital Stripe CP
                  Control: name="IEC958 Playback Con Mask", index=2, device=0
                  Control: name="IEC958 Playback Pro Mask", index=2, device=0
                  Control: name="IEC958 Playback Default", index=2, device=0
                  Control: name="IEC958 Playback Switch", index=2, device=0
                  Device: name="Generic Digital", type="HDMI", device=8
                  Converter: stream=0, channel=0
                  Digital: Enabled

    Digital category: 0x0
                  IEC Coding Type: 0x0
                  PCM:
                  rates [0x7f0]: 32000 44100 48000 88200 96000 176400 192000
                  bits [0xe]: 16 20 24
                  formats [0x5]: PCM AC3
                  Unsolicited: tag=00, enabled=0
                  Node 0x05 [Pin Complex] wcaps 0x407381: 8-Channels Digital CP
                  Pincap 0x09000094: OUT Detect HBR HDMI DP
                  Pin Default 0x18560010: [Jack] Digital Out at Int HDMI
                  Conn = Digital, Color = Unknown
                  DefAssociation = 0x1, Sequence =
             0x0
                  Pin-ctls: 0x40: OUT
                  Unsolicited: tag=01, enabled=1
                  Connection: 1
                  0x04
                  Codec: Nvidia Generic
                  Address: 3

Hello Takashi.

I have carried out the test that you proposed...

My reply follows your quoted text.

On Fri, 22/03/2019 at 11.12 +0100, Takashi Iwai wrote:

On Fri, 22 Mar 2019 11:04:01 +0100, Guido Trentalancia wrote:

...

Hello Takashi,

I am using the latest version of everything, including kernel and ALSA userspace library / tools.

The other user has exactly the same hardware and has tested same firmware (both 1.36 and latest 1.46), but with Fedora 29 and it is working.

Perhaps Fedora 29 has a different version of the ALSA library, I will find out, try to downgrade, test again and report back.

Yes, that'd be really helpful. If aligning the software doesn't fix the issue, it's either because of the hardware or the difference of usage patterns.

I have tested exactly the same ALSA userspace library and plugins distributed by Fedora 29 and it does NOT work !

As already explained, the usage pattern is exactly the same between me and the user which is not experiencing this severe problem.

Also, the hardware is the same: Hercules P32 DJ (with exactly the same firmware version 1.46 which is the latest).

So, the conclusion is that it must be a kernel bug ! I was expecting this, as already pointed out in previous messages.

Can you please help me fix this bug since you wrote the driver and/or are maintaining it ?

Thanks,

Guido

thanks,

Takashi

...

Guido

Il 22 marzo 2019 10:53:11 CET, Takashi Iwai tiwai@suse.de ha scritto:

On Fri, 22 Mar 2019 10:17:17 +0100,
Guido Trentalancia wrote:

     It cannot be a firmware bug, as you say, because:

     - it does NOT happen on Windows!

It doesn't mean that the device behaves correctly as

advertised.

     - it does NOT even always happen on Linux: other users

(with different kernel / ALSA library) are not experiencing the same problem; - it happens with several firmware versions, including the latest one (1.36 and 1.46).

     So it is either a bug in ALSA kernel driver, USB sound

driver (more likely) or ALSA library.

     Now, you are in charge of the USB sound driver, can you

please double check??

If it doesn't happen for other users with the very same device,

you'd need to identify what's the difference between your case and others. For example, if the difference of alsa-lib matters, you can try the very same condition.

This kind of bug can't be easily debugged without the actual
hardware, unfortunately.

Takashi

     Regards,

     Guido

     Il 22 marzo 2019 09:55:52 CET, Takashi Iwai <tiwai@suse.de

...

ha scritto:

         On Thu, 21 Mar 2019 23:27:46 +0100,
         Guido Trentalancia wrote:

              I wonder if this might be due to a bug in the

"USB Audio Driver for Alsa"?

              https://git.kernel.org/pub/scm/linux/kernel/git/t

orvalds/linux.git/tree/sound/usb

              https://git.kernel.org/pub/scm/linux/kernel/git/t

iwai/sound.git/tree/sound/usb

         More likely a buggy firmware of your USB audio device

:)

          From the driver implementation POV, both audio and

MIDI devices are handled by individual endpoints, hence they shouldn't conflict.

         Or another possibility would be some USB host side

issue like the bandwidth. But it's a MIDI stream that is very low data rate, so this sounds also unlikely...

         thanks,

         Takashi

              Guido

                  On the 20th of March 2019 at 21.47 Guido
    Trentalancia
                  <guido@trentalancia.com wrote:

                  Hello.

                  I am hitting a very serious bug (ALSA kernel

driver or ALSA library) when using the Hercules P32 DJ audio interface.

                  The sound is severely distorted during MIDI

transfers.

                  To reproduce:

                    + start playing something in a first

console:

                  console1# AUDIODEV=hw:2,0 play audio.wav

                    + the audio plays fine

                    + now start "amidi" in a second console

while the above track is still playing

                  console2#
             amidi -p hw:2,0,0 -d

                    + the sound is now severely distorted

(basically noise, with some hard- to-distinguish features resembling the original track) until "amidi" is interrupted !

# cat /sys/bus/usb/devices/usb[12]/version 2.00 2.00

# cat /sys/bus/usb/devices/usb[12]/product EHCI Host Controller EHCI Host Controller

# cat /sys/bus/usb/devices/usb[12]/manufacturer Linux 5.0.2 ehci_hcd Linux 5.0.2 ehci_hcd

# cat /sys/bus/usb/devices/usb[12]/speed 480 480

What other information do you need ?

Do you suggest some particular USB module configuration to try ?

Regards,

Guido

Il 22 marzo 2019 alle 15.06 Clemens Ladisch clemens@ladisch.de ha scritto:

Guido Trentalancia wrote:

...

Also, the hardware is the same: Hercules P32 DJ (with exactly the same firmware version 1.46 which is the latest).

Are the USB controllers the same (2.0/3.x, OHCI/UHCI/EHCI/xHCI)?

You wrote that "amidi -p hw:2,0,0 -d" causes the problem. As long as no MIDI messages are actually received, the kernel or driver cannot affect what happens on the USB bus; the polling is done entirely by the host controller.

Regards, Clemens

On Fri, 22 Mar 2019 14:44:48 +0100, Guido Trentalancia wrote:

Hello Takashi.

I have carried out the test that you proposed...

My reply follows your quoted text.

On Fri, 22/03/2019 at 11.12 +0100, Takashi Iwai wrote:

...

On Fri, 22 Mar 2019 11:04:01 +0100, Guido Trentalancia wrote:

...

Hello Takashi,

I am using the latest version of everything, including kernel and ALSA userspace library / tools.

The other user has exactly the same hardware and has tested same firmware (both 1.36 and latest 1.46), but with Fedora 29 and it is working.

Perhaps Fedora 29 has a different version of the ALSA library, I will find out, try to downgrade, test again and report back.

Yes, that'd be really helpful. If aligning the software doesn't fix the issue, it's either because of the hardware or the difference of usage patterns.

I have tested exactly the same ALSA userspace library and plugins distributed by Fedora 29 and it does NOT work !

As already explained, the usage pattern is exactly the same between me and the user which is not experiencing this severe problem.

Also, the hardware is the same: Hercules P32 DJ (with exactly the same firmware version 1.46 which is the latest).

So, the conclusion is that it must be a kernel bug ! I was expecting this, as already pointed out in previous messages.

Did you test the very same kernel, too? Without that confirmation, no one can conclude that at all...

If the kernel makes difference, you can try identify which kernel version starts showing the problem, and at best, do git bisection.

thanks,

Takashi

Can you please help me fix this bug since you wrote the driver and/or are maintaining it ?

Thanks,

Guido

...

thanks,

Takashi

...

Guido

Il 22 marzo 2019 10:53:11 CET, Takashi Iwai tiwai@suse.de ha scritto:

On Fri, 22 Mar 2019 10:17:17 +0100,
Guido Trentalancia wrote:

     It cannot be a firmware bug, as you say, because:

     - it does NOT happen on Windows!

It doesn't mean that the device behaves correctly as

advertised.

     - it does NOT even always happen on Linux: other users

(with different kernel / ALSA library) are not experiencing the same problem; - it happens with several firmware versions, including the latest one (1.36 and 1.46).

     So it is either a bug in ALSA kernel driver, USB sound

driver (more likely) or ALSA library.

     Now, you are in charge of the USB sound driver, can you

please double check??

If it doesn't happen for other users with the very same device,

you'd need to identify what's the difference between your case and others. For example, if the difference of alsa-lib matters, you can try the very same condition.

This kind of bug can't be easily debugged without the actual
hardware, unfortunately.

Takashi

     Regards,

     Guido

     Il 22 marzo 2019 09:55:52 CET, Takashi Iwai <tiwai@suse.de

...

ha scritto:

         On Thu, 21 Mar 2019 23:27:46 +0100,
         Guido Trentalancia wrote:

              I wonder if this might be due to a bug in the

"USB Audio Driver for Alsa"?

              https://git.kernel.org/pub/scm/linux/kernel/git/t

orvalds/linux.git/tree/sound/usb

              https://git.kernel.org/pub/scm/linux/kernel/git/t

iwai/sound.git/tree/sound/usb

         More likely a buggy firmware of your USB audio device

:)

          From the driver implementation POV, both audio and

MIDI devices are handled by individual endpoints, hence they shouldn't conflict.

         Or another possibility would be some USB host side

issue like the bandwidth. But it's a MIDI stream that is very low data rate, so this sounds also unlikely...

         thanks,

         Takashi

              Guido

                  On the 20th of March 2019 at 21.47 Guido
    Trentalancia
                  <guido@trentalancia.com wrote:

                  Hello.

                  I am hitting a very serious bug (ALSA kernel

driver or ALSA library) when using the Hercules P32 DJ audio interface.

                  The sound is severely distorted during MIDI

transfers.

                  To reproduce:

                    + start playing something in a first

console:

                  console1# AUDIODEV=hw:2,0 play audio.wav

                    + the audio plays fine

                    + now start "amidi" in a second console

while the above track is still playing

                  console2#
             amidi -p hw:2,0,0 -d

                    + the sound is now severely distorted

(basically noise, with some hard- to-distinguish features resembling the original track) until "amidi" is interrupted !

On Fri, 22 Mar 2019 15:54:03 +0100, Guido Trentalancia wrote:

As already explained, I have tested the following kernels:

• kernel 5.0.2 -----> BROKEN
• kernel 4.17.10 --> BROKEN
• kernel 4.12.9 ---> BROKEN

So, it's been around for very long.

What do you suggest doing?

But which kernel is used for another user who can use without the problem? I suppose they use the recent kernel with Fedora?

I have found reports on the web about similar problems (with other audio interfaces) with kernels>3.0.0.

Such a regression should have been reported earlier, otherwise it becomes more and more difficult to catch up...

thanks,

Takashi

Regards,

Guido

Il 22 marzo 2019 15:47:36 CET, Takashi Iwai tiwai@suse.de ha scritto:

On Fri, 22 Mar 2019 14:44:48 +0100,
Guido Trentalancia wrote:

     Hello Takashi.

     I have carried out the test that you proposed...

     My reply follows your quoted text.

     On Fri, 22/03/2019 at 11.12 +0100, Takashi Iwai wrote:
         On Fri, 22 Mar 2019 11:04:01 +0100,
         Guido Trentalancia wrote:

             Hello Takashi,

             I am using the latest version of everything, including kernel and
             ALSA
             userspace library / tools.

             The other user has exactly the same hardware and has tested same
             firmware
             (both 1.36 and latest
            1.46), but with Fedora 29 and it is working.

             Perhaps Fedora 29 has a different version of the ALSA library, I
             will find
             out, try to downgrade, test again and report back.

         Yes, that'd be really helpful.  If aligning the software doesn't fix
         the issue, it's either because of the hardware or the difference of
         usage patterns.

     I have tested exactly the same ALSA userspace library and plugins
     distributed by Fedora 29 and it does NOT work !

     As already explained, the usage pattern is exactly the same between me
     and the user which is not experiencing this severe problem.

     Also, the hardware is the same: Hercules P32 DJ (with exactly the same
     firmware version 1.46 which is the latest).

     So, the conclusion is that it must be a kernel bug ! I was expecting
     this, as already pointed out in previous messages.

Did you test the
very same kernel, too?  Without that confirmation, no
one can conclude that at all...

If the kernel makes difference, you can try identify which kernel
version starts showing the problem, and at best, do git bisection.

thanks,

Takashi

     Can you please help me fix this bug since you wrote the driver and/or
     are maintaining it ?

     Thanks,

     Guido

         thanks,

         Takashi

             Guido

             Il 22 marzo 2019 10:53:11 CET, Takashi Iwai <tiwai@suse.de> ha
             scritto:

                 On Fri, 22 Mar 2019
            10:17:17 +0100,
                 Guido Trentalancia wrote:

                      It cannot be a firmware bug, as you say, because:

                      - it does NOT happen on Windows!

                 It doesn't mean that the device behaves correctly as
             advertised.

                      - it does NOT even always happen on Linux: other users
             (with different kernel
                      / ALSA library) are not experiencing the same problem;
                      - it happens with several firmware versions, including the
             latest one (1.36
                      and 1.46).

                      So it is either a bug in ALSA kernel driver, USB sound
             driver (more likely) or
                      ALSA library.

                      Now, you are in charge of the USB sound driver, can you
             please double check??

                 If it doesn't happen for other users with the very same device,
             you'd
                 need to identify what's the difference
            between your case and
             others.
                 For example, if the difference of alsa-lib matters, you can try
             the
                 very same condition.

                 This kind of bug can't be easily debugged without the actual
                 hardware, unfortunately.

                 Takashi

                      Regards,

                      Guido

                      Il 22 marzo 2019 09:55:52 CET, Takashi Iwai <tiwai@suse.de
                 ha scritto:

                          On Thu, 21 Mar 2019 23:27:46 +0100,
                          Guido Trentalancia wrote:

                               I wonder if this might be due to a bug in the
             "USB Audio Driver for Alsa"?

                               https://git.kernel.org/pub/scm/linux/kernel/git/t
             orvalds/linux.git/tree/sound/usb

                               https://git.kernel.org/pub/scm/linux/kernel/git/t
             iwai/sound.git/tree/sound/usb

                          More likely a buggy firmware of your USB audio device
             :)

                           From the driver implementation POV, both audio and
             MIDI devices are
                          handled by individual endpoints, hence they shouldn't
             conflict.

                          Or another possibility would be some USB host side
             issue like the
                          bandwidth.  But
                          it's a MIDI stream that is very low data rate, so this
                          sounds also unlikely...

                          thanks,

             Takashi

                               Guido

                                   On the 20th of March 2019 at 21.47 Guido
                     Trentalancia
                                   <guido@trentalancia.com wrote:

                                   Hello.

                                   I am hitting a very serious bug (ALSA kernel
             driver or ALSA library)
                                   when using the Hercules P32 DJ audio
             interface.

                                   The sound is severely distorted during MIDI
             transfers.

                                   To reproduce:

                                     + start playing something in a first
             console:

                                   console1# AUDIODEV=hw:2,0 play audio.wav

                                     + the audio plays fine

                                     + now start "amidi" in a second console
             while the above track is still
                                       playing

                                   console2#
                              amidi -p hw:2,0,0 -d

                                     + the sound is now severely distorted
             (basically noise, with some
                     hard-
                                       to-distinguish features resembling the
             original track) until "amidi"
                                       is
                                       interrupted !

On Fri, 22 Mar 2019 16:05:17 +0100, Guido Trentalancia wrote:

I suppose the Fedora 29 kernels are included in the range I tested as broken, i.e. 4.12 -- 5.0.

So, there is something triggering it on my system and not the other, maybe the USB system as pointed out by Clemens.

You can try different USB ports, too, e.g. if there are both USB 3.0 and 2.0 ports.

I'll make some research on the two USB systems...

I would also like to try USB Audio driver from kernel 3.0.1.

What else do you suggest?

If any, the problem is rather about the USB core side (likely the host driver), not the USB audio driver. I can imagine some bandwidth management or iosc transfer problem.

Takashi

Guido

Il 22 marzo 2019 15:58:23 CET, Takashi Iwai tiwai@suse.de ha scritto:

On Fri, 22 Mar 2019 15:54:03 +0100,
Guido Trentalancia wrote:

     As already explained, I have tested the following kernels:

     - kernel 5.0.2 -----> BROKEN
     - kernel 4.17.10 --> BROKEN
     - kernel 4.12.9 ---> BROKEN

     So, it's been around for very long.

     What do you suggest doing?

But which kernel is used for another user who can use without the
problem?  I suppose they use the recent kernel with Fedora?

     I have found reports on the web about similar problems (with other audio
     interfaces) with kernels>3.0.0.

Such a regression should have been reported earlier, otherwise it
becomes more and
more difficult to catch up...

thanks,

Takashi

     Regards,

     Guido

     Il 22 marzo 2019 15:47:36 CET, Takashi Iwai <tiwai@suse.de> ha scritto:

         On Fri, 22 Mar 2019 14:44:48 +0100,
         Guido Trentalancia wrote:

              Hello Takashi.

              I have carried out the test that you proposed...

              My reply follows your quoted text.

              On Fri, 22/03/2019 at 11.12 +0100, Takashi Iwai wrote:
                  On Fri, 22 Mar 2019 11:04:01 +0100,
                  Guido Trentalancia wrote:

                      Hello Takashi,

                      I am using the latest version of everything, including kernel and

    ALSA
                      userspace library / tools.

                      The other user has exactly the same hardware and has tested same
                      firmware
                      (both 1.36 and latest
                     1.46), but with Fedora 29 and it is working.

                      Perhaps Fedora 29 has a different version of the ALSA library, I
                      will find
                      out, try to downgrade, test again and report back.

                  Yes, that'd be really helpful.  If aligning the software doesn't fix
                  the issue, it's either because of the hardware or the difference of
                  usage patterns.

              I have tested exactly the same ALSA userspace library and plugins
              distributed by Fedora 29 and it does NOT work !

              As already explained, the usage pattern is
    exactly the same between me
              and the user which is not experiencing this severe problem.

              Also, the hardware is the same: Hercules P32 DJ (with exactly the same
              firmware version 1.46 which is the latest).

              So, the conclusion is that it must be a kernel bug ! I was expecting
              this, as already pointed out in previous messages.

         Did you test the
         very same kernel, too?  Without that confirmation, no
         one can conclude that at all...

         If the kernel makes difference, you can try identify which kernel
         version starts showing the problem, and at best, do git bisection.

         thanks,

         Takashi

              Can you please help me fix this bug since you wrote the driver and/or
              are maintaining it ?

              Thanks,

    Guido

                  thanks,

                  Takashi

                      Guido

                      Il 22 marzo 2019 10:53:11 CET, Takashi Iwai <tiwai@suse.de> ha
                      scritto:

                          On Fri, 22 Mar 2019
                     10:17:17 +0100,
                          Guido Trentalancia wrote:

                               It cannot be a firmware bug, as you say, because:

                               - it does NOT happen on Windows!

                          It doesn't mean that the device behaves correctly as
                      advertised.

                               - it does NOT even always happen on Linux: other users
                      (with different kernel
                               / ALSA
    library) are not experiencing the same problem;
                               - it happens with several firmware versions, including the
                      latest one (1.36
                               and 1.46).

                               So it is either a bug in ALSA kernel driver, USB sound
                      driver (more likely) or
                               ALSA library.

                               Now, you are in charge of the USB sound driver, can you
                      please double check??

                          If it doesn't happen for other users with the very same device,
                      you'd
                          need to identify what's the difference
                     between your case and
                      others.
                          For example, if the difference of alsa-lib matters, you can try

          the
                          very same condition.

                          This kind of bug can't be easily debugged without the actual
                          hardware, unfortunately.

                          Takashi

                               Regards,

                               Guido

                               Il 22 marzo 2019 09:55:52 CET, Takashi Iwai <tiwai@suse.de
                          ha scritto:

                                   On Thu, 21 Mar 2019 23:27:46 +0100,
                                   Guido Trentalancia wrote:

                                        I wonder if this might be due to a bug in the
                      "USB Audio Driver for Alsa"?

                        https://git.kernel.org/pub/scm/linux/kernel/git/t
                      orvalds/linux.git/tree/sound/usb

                                        https://git.kernel.org/pub/scm/linux/kernel/git/t
                      iwai/sound.git/tree/sound/usb

                                   More likely a buggy firmware of your USB audio device
                      :)

                                    From the driver implementation POV, both audio and
                      MIDI devices are
                                   handled by individual endpoints, hence they shouldn't
                      conflict.

                                   Or another possibility would be some USB
    host side
                      issue like the
                                   bandwidth.  But
                                   it's a MIDI stream that is very low data rate, so this
                                   sounds also unlikely...

                                   thanks,

                      Takashi

                                        Guido

                                            On the 20th of March 2019 at 21.47 Guido
                              Trentalancia
                                            <guido@trentalancia.com wrote:

                                            Hello.

                                            I am hitting a very serious bug (ALSA kernel
                      driver or ALSA library)

                           when using the Hercules P32 DJ audio
                      interface.

                                            The sound is severely distorted during MIDI
                      transfers.

                                            To reproduce:

                                              + start playing something in a first
                      console:

                                            console1# AUDIODEV=hw:2,0 play audio.wav

                                              + the audio plays fine

                                              + now start "amidi" in a second console
                      while the above track is still
                                                playing

                                            console2#
                                       amidi -p hw:2,0,0 -d

                                              + the sound is now severely distorted
                      (basically noise, with some
                              hard-
                                                to-distinguish features resembling the
                      original track) until "amidi"
                                                is
                                                interrupted !

On the 22nd of March 2019 at 16.05 Guido Trentalancia guido@trentalancia.com wrote:

I suppose the Fedora 29 kernels are included in the range I tested as broken, i.e. 4.12 -- 5.0.

I have checked and can now confirm the above, as Fedora 29 kernel is version 4.18.16, therefore included in the same range I tested as broken.

So, there is something triggering it on my system and not the other, maybe the USB system as pointed out by Clemens.

I'll make some research on the two USB systems...

I would also like to try USB Audio driver from kernel 3.0.1.

What else do you suggest?

Guido

Il 22 marzo 2019 15:58:23 CET, Takashi Iwai tiwai@suse.de ha scritto:

...

On Fri, 22 Mar 2019 15:54:03 +0100, Guido Trentalancia wrote:

...

As already explained, I have tested the following kernels:

• kernel 5.0.2 -----> BROKEN
• kernel 4.17.10 --> BROKEN
• kernel 4.12.9 ---> BROKEN

So, it's been around for very long.

What do you suggest doing?

But which kernel is used for another user who can use without the problem? I suppose they use the recent kernel with Fedora?

...

I have found reports on the web about similar problems (with other

audio

...

interfaces) with kernels>3.0.0.

Such a regression should have been reported earlier, otherwise it becomes more and more difficult to catch up...

thanks,

Takashi

...

Regards,

Guido

Il 22 marzo 2019 15:47:36 CET, Takashi Iwai tiwai@suse.de ha

scritto:

...

On Fri, 22 Mar 2019 14:44:48 +0100,
Guido Trentalancia wrote:

     Hello Takashi.

     I have carried out the test that you proposed...

     My reply follows your quoted text.

     On Fri, 22/03/2019 at 11.12 +0100, Takashi Iwai wrote:
         On Fri, 22 Mar 2019 11:04:01 +0100,
         Guido Trentalancia wrote:

             Hello Takashi,

             I am using the latest version of everything,

including kernel and

...

             ALSA
             userspace library / tools.

             The other user has exactly the same hardware and has

tested same

...

             firmware
             (both 1.36 and latest
            1.46), but with Fedora 29 and it is working.

             Perhaps Fedora 29 has a different version of the

ALSA library, I

...

             will find
             out, try to downgrade, test again and report back.

         Yes, that'd be really helpful.  If aligning the software

doesn't fix

...

         the issue, it's either because of the hardware or the

difference of

...

         usage patterns.

     I have tested exactly the same ALSA userspace library and

plugins

...

     distributed by Fedora 29 and it does NOT work !

     As already explained, the usage pattern is exactly the same

between me

...

     and the user which is not experiencing this severe problem.

     Also, the hardware is the same: Hercules P32 DJ (with

exactly the same

...

     firmware version 1.46 which is the latest).

     So, the conclusion is that it must be a kernel bug ! I was

expecting

...

     this, as already pointed out in previous messages.

Did you test the
very same kernel, too?  Without that confirmation, no
one can conclude that at all...

If the kernel makes difference, you can try identify which kernel
version starts showing the problem, and at best, do git

bisection.

...

thanks,

Takashi

     Can you please help me fix this bug since you wrote the

driver and/or

...

     are maintaining it ?

     Thanks,

     Guido

         thanks,

         Takashi

             Guido

             Il 22 marzo 2019 10:53:11 CET, Takashi Iwai

tiwai@suse.de ha

...

             scritto:

                 On Fri, 22 Mar 2019
            10:17:17 +0100,
                 Guido Trentalancia wrote:

                      It cannot be a firmware bug, as you say,

because:

...

                      - it does NOT happen on Windows!

                 It doesn't mean that the device behaves

correctly as

...

             advertised.

                      - it does NOT even always happen on Linux:

other users

...

             (with different kernel
                      / ALSA library) are not experiencing the

same problem;

...

                      - it happens with several firmware

versions, including the

...

             latest one (1.36
                      and 1.46).

                      So it is either a bug in ALSA kernel

driver, USB sound

...

             driver (more likely) or
                      ALSA library.

                      Now, you are in charge of the USB sound

driver, can you

...

             please double check??

                 If it doesn't happen for other users with the

very same device,

...

             you'd
                 need to identify what's the difference
            between your case and
             others.
                 For example, if the difference of alsa-lib

matters, you can try

...

             the
                 very same condition.

                 This kind of bug can't be easily debugged

without the actual

...

                 hardware, unfortunately.

                 Takashi

                      Regards,

                      Guido

                      Il 22 marzo 2019 09:55:52 CET, Takashi Iwai

<tiwai@suse.de

...

                 ha scritto:

                          On Thu, 21 Mar 2019 23:27:46 +0100,
                          Guido Trentalancia wrote:

                               I wonder if this might be due to a

bug in the

...

             "USB Audio Driver for Alsa"?

https://git.kernel.org/pub/scm/linux/kernel/git/t

...

             orvalds/linux.git/tree/sound/usb

https://git.kernel.org/pub/scm/linux/kernel/git/t

...

             iwai/sound.git/tree/sound/usb

                          More likely a buggy firmware of your

USB audio device

...

             :)

                           From the driver implementation POV,

both audio and

...

             MIDI devices are
                          handled by individual endpoints, hence

they shouldn't

...

             conflict.

                          Or another possibility would be some

USB host side

...

             issue like the
                          bandwidth.  But
                          it's a MIDI stream that is very low

data rate, so this

...

                          sounds also unlikely...

                          thanks,

             Takashi

                               Guido

                                   On the 20th of March 2019 at

21.47 Guido

...

                     Trentalancia
                                   <guido@trentalancia.com wrote:

                                   Hello.

                                   I am hitting a very serious

bug (ALSA kernel

...

             driver or ALSA library)
                                   when using the Hercules P32 DJ

audio

...

             interface.

                                   The sound is severely

distorted during MIDI

...

             transfers.

                                   To reproduce:

                                     + start playing something in

a first

...

             console:

                                   console1# AUDIODEV=hw:2,0 play

audio.wav

...

                                     + the audio plays fine

                                     + now start "amidi" in a

second console

...

             while the above track is still
                                       playing

                                   console2#
                              amidi -p hw:2,0,0 -d

                                     + the sound is now severely

distorted

...

             (basically noise, with some
                     hard-
                                       to-distinguish features

resembling the

...

             original track) until "amidi"
                                       is
                                       interrupted !

---

Alsa-devel mailing list Alsa-devel@alsa-project.org https://mailman.alsa-project.org/mailman/listinfo/alsa-devel

Update on affected kernels...

Il 22 marzo 2019 alle 15.54 Guido Trentalancia guido@trentalancia.com ha scritto:

As already explained, I have tested the following kernels:

• kernel 5.0.2 -----> BROKEN
• kernel 4.17.10 --> BROKEN
• kernel 4.12.9 ---> BROKEN

kernel 3.8.13 is also BROKEN (on the system where it fails, not the other one obviously).

On kernel 3.0.0 it is broken even when MIDI is not running.

So, it affects virtually all kernels...

So, it's been around for very long.

What do you suggest doing?

I have found reports on the web about similar problems (with other audio interfaces) with kernels>3.0.0.

Regards,

Guido