[alsa-devel] Very low headphones volume on HDA + Realtek ALC268

Maurizio Monge maurizio.monge at gmail.com
Wed Jul 4 20:12:24 CEST 2007


Hi, i've got an hda/alc268 card (pci id: [8086:284b], subsytem id:
[1025:011f]) on my laptop, and the sound is ok for the loudspeakers
but it is very very low for the headphones (the volume is at the top
in the mixer, if i reduce the volume in the mixer the sound gets even
lower).
Under windows vista the headphones work well (ok, worked, before that
i removed windows from my computer).
I am using alsa hg, the most recent version at the moment i'm writing
this e-mail.
I there is any experiment that i can do or if i can help in any way (i
know C very well) to fix this bug just let me know, and i'll be happy
to contribute.
More information about the hardware follows.
Thanks!

-- 
Ciao
Maurizio
http://stregatto.wordpress.com

"Well we all shine on
Like the moon and the stars and the sun" (John Lennon)

lspci entry:
00:1b.0 Audio device [0403]: Intel Corporation 82801H (ICH8 Family) HD
Audio Controller [8086:284b] (rev 03)
        Subsystem: Acer Incorporated [ALI] Unknown device [1025:011f]
        Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR+ FastB2B-
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
        Latency: 0, Cache Line Size: 64 bytes
        Interrupt: pin A routed to IRQ 22
        Region 0: Memory at fc300000 (64-bit, non-prefetchable) [size=16K]
        Capabilities: [50] Power Management version 2
                Flags: PMEClk- DSI- D1- D2- AuxCurrent=55mA
PME(D0+,D1-,D2-,D3hot+,D3cold+)
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-
        Capabilities: [60] Message Signalled Interrupts: Mask- 64bit+
Queue=0/0 Enable-
                Address: 0000000000000000  Data: 0000
        Capabilities: [70] Express Unknown type IRQ 0
                Device: Supported: MaxPayload 128 bytes, PhantFunc 0, ExtTag-
                Device: Latency L0s <64ns, L1 <1us
                Device: Errors: Correctable- Non-Fatal- Fatal- Unsupported-
                Device: RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop+
                Device: MaxPayload 128 bytes, MaxReadReq 128 bytes
                Link: Supported Speed unknown, Width x0, ASPM unknown, Port 0
                Link: Latency L0s <64ns, L1 <1us
                Link: ASPM Disabled CommClk- ExtSynch-
                Link: Speed unknown, Width x0





/proc/asound/card0/codec#0
Codec: Realtek ALC268
Address: 0
Vendor Id: 0x10ec0268
Subsystem Id: 0x1025011f
Revision Id: 0x100003
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
Node 0x02 [Audio Output] wcaps 0x1d: Stereo Amp-Out
  Amp-Out caps: ofs=0x40, nsteps=0x40, stepsize=0x03, mute=0
  Amp-Out vals:  [0x40 0x40]
  PCM:
    rates [0x560]: 44100 48000 96000 192000
    bits [0xe]: 16 20 24
    formats [0x1]: PCM
Node 0x03 [Audio Output] wcaps 0x1d: Stereo Amp-Out
  Amp-Out caps: ofs=0x40, nsteps=0x40, stepsize=0x03, mute=0
  Amp-Out vals:  [0x2f 0x2f]
  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
  PCM:
    rates [0x5e0]: 44100 48000 88200 96000 192000
    bits [0x1e]: 16 20 24 32
    formats [0x1]: PCM
Node 0x07 [Audio Input] wcaps 0x100111: Stereo
  PCM:
    rates [0x160]: 44100 48000 96000
    bits [0x6]: 16 20
    formats [0x1]: PCM
  Connection: 1
     0x24
Node 0x08 [Audio Input] wcaps 0x100111: Stereo
  PCM:
    rates [0x160]: 44100 48000 96000
    bits [0x6]: 16 20
    formats [0x1]: PCM
  Connection: 1
     0x23
Node 0x09 [Vendor Defined Widget] wcaps 0xf00000: Mono
Node 0x0a [Vendor Defined Widget] wcaps 0xf00000: Mono
Node 0x0b [Vendor Defined Widget] wcaps 0xf00000: Mono
Node 0x0c [Vendor Defined Widget] wcaps 0xf00000: Mono
Node 0x0d [Vendor Defined Widget] wcaps 0xf00000: Mono
Node 0x0e [Audio Mixer] wcaps 0x20010a: Mono Amp-In
  Amp-In caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
  Amp-In vals:  [0x00]
  Connection: 1
     0x02
Node 0x0f [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 0x1d
Node 0x10 [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] [0x80 0x80]
  Connection: 3
     0x03 0x1d 0x02
Node 0x11 [Vendor Defined Widget] wcaps 0xf00000: Mono
Node 0x12 [Pin Complex] wcaps 0x400001: Stereo
  Pincap 0x0820: IN
  Pin Default 0x411111f0: [N/A] Speaker at Ext Rear
    Conn = 1/8, Color = Black
  Pin-ctls: 0x00:
Node 0x13 [Pin Complex] wcaps 0x400001: Stereo
  Pincap 0x0820: IN
  Pin Default 0x411111f0: [N/A] Speaker at Ext Rear
    Conn = 1/8, Color = Black
  Pin-ctls: 0x00:
Node 0x14 [Pin Complex] wcaps 0x40018d: Stereo Amp-Out
  Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
  Amp-Out vals:  [0x00 0x00]
  Pincap 0x081003c: IN OUT HP EAPD Detect
  Pin Default 0x02214020: [Jack] HP Out at Ext Front
    Conn = 1/8, Color = Green
  Pin-ctls: 0xc0: OUT HP
  Connection: 1
     0x0f
Node 0x15 [Pin Complex] wcaps 0x40018d: Stereo Amp-Out
  Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
  Amp-Out vals:  [0x80 0x80]
  Pincap 0x081003c: IN OUT HP EAPD Detect
  Pin Default 0x99130110: [Fixed] Speaker at Int ATAPI
    Conn = ATAPI, Color = Unknown
  Pin-ctls: 0x40: OUT
  Connection: 1
     0x10
Node 0x16 [Pin Complex] wcaps 0x40010c: Mono Amp-Out
  Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
  Amp-Out vals:  [0x80]
  Pincap 0x0810: OUT
  Pin Default 0x411111f0: [N/A] Speaker at Ext Rear
    Conn = 1/8, Color = Black
  Pin-ctls: 0x00:
  Connection: 1
     0x0e
Node 0x17 [Vendor Defined Widget] wcaps 0xf00000: Mono
Node 0x18 [Pin Complex] wcaps 0x40018f: Stereo Amp-In Amp-Out
  Amp-In caps: ofs=0x00, nsteps=0x02, stepsize=0x4f, mute=0
  Amp-In vals:  [0x00 0x00]
  Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
  Amp-Out vals:  [0x80 0x80]
  Pincap 0x083734: IN OUT Detect
  Pin Default 0x02a19830: [Jack] Mic at Ext Front
    Conn = 1/8, Color = Pink
  Pin-ctls: 0x24: IN
  Connection: 1
     0x02
Node 0x19 [Pin Complex] wcaps 0x40008b: Stereo Amp-In
  Amp-In caps: ofs=0x00, nsteps=0x02, stepsize=0x4f, mute=0
  Amp-In vals:
  Pincap 0x083724: IN Detect
  Pin Default 0x99a30931: [Fixed] Mic at Int ATAPI
    Conn = ATAPI, Color = Unknown
  Pin-ctls: 0x24: IN
Node 0x1a [Pin Complex] wcaps 0x40018f: Stereo Amp-In Amp-Out
  Amp-In caps: ofs=0x00, nsteps=0x02, stepsize=0x4f, mute=0
  Amp-In vals:  [0x00 0x00]
  Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
  Amp-Out vals:  [0x80 0x80]
  Pincap 0x083734: IN OUT Detect
  Pin Default 0x0281303e: [Jack] Line In at Ext Front
    Conn = 1/8, Color = Blue
  Pin-ctls: 0x20: IN
  Connection: 1
     0x02
Node 0x1b [Vendor Defined Widget] wcaps 0xf00000: Mono
Node 0x1c [Pin Complex] wcaps 0x400001: Stereo
  Pincap 0x0820: IN
  Pin Default 0x411111f0: [N/A] Speaker at Ext Rear
    Conn = 1/8, Color = Black
  Pin-ctls: 0x20: IN
Node 0x1d [Pin Complex] wcaps 0x400000: Mono
  Pincap 0x0820: IN
  Pin Default 0x4017952d: [N/A] Speaker at Ext N/A
    Conn = Analog, Color = Pink
  Pin-ctls: 0x20: IN
Node 0x1e [Pin Complex] wcaps 0x400380: Mono Digital
  Pincap 0x0810: OUT
  Pin Default 0x411111f0: [N/A] Speaker at Ext Rear
    Conn = 1/8, Color = Black
  Pin-ctls: 0x40: OUT
  Connection: 1
     0x06
Node 0x1f [Vendor Defined Widget] wcaps 0xf00000: Mono
Node 0x20 [Vendor Defined Widget] wcaps 0xf00040: Mono
Node 0x21 [Vendor Defined Widget] wcaps 0xf00000: Mono
Node 0x22 [Vendor Defined Widget] wcaps 0xf00000: Mono
Node 0x23 [Audio Selector] wcaps 0x30010d: Stereo Amp-Out
  Amp-Out caps: ofs=0x0b, nsteps=0x1f, stepsize=0x05, mute=1
  Amp-Out vals:  [0x90 0x90]
  Connection: 7
     0x18 0x19 0x1a 0x1c 0x14 0x15* 0x12
Node 0x24 [Audio Selector] wcaps 0x30010d: Stereo Amp-Out
  Amp-Out caps: ofs=0x0b, nsteps=0x1f, stepsize=0x05, mute=1
  Amp-Out vals:  [0x01 0x01]
  Connection: 7
     0x18 0x19 0x1a 0x1c 0x14* 0x15 0x13





/proc/asound/card0/codec#1:
Codec: Conexant ID 2c06
Address: 1
Vendor Id: 0x14f12c06
Subsystem Id: 0x10250093
Revision Id: 0x100000
Modem Function Group: 0x2


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