Re: [alsa-devel] Hercules P32 DJ: severe sound distortion during MIDI transfers

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