Re: Problems with ALC882

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2008/1/18, Takashi Iwai <tiwai@xxxxxxx>:
> At Fri, 18 Jan 2008 17:10:06 +0100,
> Christophe Osuna wrote:
> >
> > I have tried alsa-driver-hg20080117; it shows two additional mixer
> > options (Mic Boost and Front Mic Boost) but in the end it's the same:
> > I am unable to access the 3rd ADC.
>
> Looks like your board disables the third ADC.  The driver probes it
> and the codec returns it's no audio-input widget.  Check codec#* proc
> output.
>

I have copied the contents of /proc/asound/card0/codec#2 at the end of
this message. Notice that there are three nodes (0x07, 0x08 and 0x09)
which claim to support PCM input.


> > The ALC882 datasheet states that "3 stereo ADCs support 16/20-bit PCM
> > format, two for microphone array, one for legacy mixer recording".
> > This is the only place that suggests there could be a difference, but
> > I do not understand this sentence as "only 2 ADC can be used at a
> > time" (English is not my native language). The block diagram in the
> > following page does not suggest such a limit either.
>
> The reality bites sometimes :)

I really want to believe this codec can do three things at a time.


> > Besides that I have read in the same datasheet that "rates in
> > sub-multiples (1/n) of 48kHz are interleaving n frames containing no
> > sample blocks" and so we can have 8 kHz by setting one sample block
> > every six frames. Still, I can't set the device to 8 kHz.
>
> How did you test it?  The driver itself supports 8kHz, as long as the
> codec chip really returns the capability.

The same nodes I mentionned above (0x07, 0x08 and 0x09 in
/proc/asound/card0/codec#2) show no support for 8 kHz sample rate.
This is confirmed by the failing calls to
snd_pcm_hw_params_set_rate().


> Using two ALC882 codecs on the same HD-audio bus isn't supported right
> now.  The second codec would conflict.  Dual audio codecs are not
> impossible but it makes things complicated.

This is interesting information, thanks.


----------[ contents of /proc/asound/card0/codec#2 ]----------

Codec: Realtek ALC882
Address: 2
Vendor Id: 0x10ec0882
Subsystem Id: 0x10ec0882
Revision Id: 0x100101
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 0x11: Stereo
  PCM:
    rates [0x560]: 44100 48000 96000 192000
    bits [0xe]: 16 20 24
    formats [0x1]: PCM
Node 0x03 [Audio Output] wcaps 0x11: Stereo
  PCM:
    rates [0x560]: 44100 48000 96000 192000
    bits [0xe]: 16 20 24
    formats [0x1]: PCM
Node 0x04 [Audio Output] wcaps 0x11: Stereo
  PCM:
    rates [0x560]: 44100 48000 96000 192000
    bits [0xe]: 16 20 24
    formats [0x1]: PCM
Node 0x05 [Audio Output] wcaps 0x11: Stereo
  PCM:
    rates [0x560]: 44100 48000 96000 192000
    bits [0xe]: 16 20 24
    formats [0x1]: PCM
Node 0x06 [Audio Output] wcaps 0x211: Stereo Digital
  PCM:
    rates [0x560]: 44100 48000 96000 192000
    bits [0x1e]: 16 20 24 32
    formats [0x1]: PCM
Node 0x07 [Audio Input] wcaps 0x10011b: Stereo Amp-In
  Amp-In caps: ofs=0x08, nsteps=0x1f, stepsize=0x05, mute=1
  Amp-In vals:  [0x0b 0x0b]
  PCM:
    rates [0x160]: 44100 48000 96000
    bits [0x6]: 16 20
    formats [0x1]: PCM
  Connection: 1
     0x24
Node 0x08 [Audio Input] wcaps 0x10011b: Stereo Amp-In
  Amp-In caps: ofs=0x08, nsteps=0x1f, stepsize=0x05, mute=1
  Amp-In vals:  [0x0e 0x0e]
  PCM:
    rates [0x160]: 44100 48000 96000
    bits [0x6]: 16 20
    formats [0x1]: PCM
  Connection: 1
     0x23
Node 0x09 [Audio Input] wcaps 0x10011b: Stereo Amp-In
  Amp-In caps: ofs=0x08, nsteps=0x1f, stepsize=0x05, mute=1
  Amp-In vals:  [0x0f 0x0f]
  PCM:
    rates [0x160]: 44100 48000 96000
    bits [0x6]: 16 20
    formats [0x1]: PCM
  Connection: 1
     0x22
Node 0x0a [Audio Input] wcaps 0x100391: Stereo Digital
  PCM:
    rates [0x560]: 44100 48000 96000 192000
    bits [0x1e]: 16 20 24 32
    formats [0x1]: PCM
  Connection: 1
     0x1f
Node 0x0b [Audio Mixer] wcaps 0x20010b: Stereo Amp-In
  Amp-In caps: ofs=0x17, nsteps=0x1f, stepsize=0x05, mute=1
  Amp-In vals:  [0x80 0x80] [0x80 0x80] [0x80 0x80] [0x80 0x80] [0x80
0x80] [0x97 0x97] [0x97 0]
  Connection: 10
     0x18 0x19 0x1a 0x1b 0x1c 0x1d 0x14 0x15 0x16 0x17
Node 0x0c [Audio Mixer] wcaps 0x20010f: Stereo Amp-In Amp-Out
  Amp-In caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
  Amp-In vals:  [0x00 0x00] [0x00 0x00]
  Amp-Out caps: ofs=0x1f, nsteps=0x1f, stepsize=0x05, mute=0
  Amp-Out vals:  [0x00 0x00]
  Connection: 2
     0x02 0x0b
Node 0x0d [Audio Mixer] wcaps 0x20010f: Stereo Amp-In Amp-Out
  Amp-In caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
  Amp-In vals:  [0x00 0x00] [0x00 0x00]
  Amp-Out caps: ofs=0x1f, nsteps=0x1f, stepsize=0x05, mute=0
  Amp-Out vals:  [0x00 0x00]
  Connection: 2
     0x03 0x0b
Node 0x0e [Audio Mixer] wcaps 0x20010f: Stereo Amp-In Amp-Out
  Amp-In caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
  Amp-In vals:  [0x00 0x00] [0x00 0x00]
  Amp-Out caps: ofs=0x1f, nsteps=0x1f, stepsize=0x05, mute=0
  Amp-Out vals:  [0x00 0x00]
  Connection: 2
     0x04 0x0b
Node 0x0f [Audio Mixer] wcaps 0x20010f: Stereo Amp-In Amp-Out
  Amp-In caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
  Amp-In vals:  [0x00 0x00] [0x00 0x00]
  Amp-Out caps: ofs=0x1f, nsteps=0x1f, stepsize=0x05, mute=0
  Amp-Out vals:  [0x00 0x00]
  Connection: 2
     0x05 0x0b
Node 0x10 [Vendor Defined Widget] wcaps 0xf00000: Mono
Node 0x11 [Vendor Defined Widget] wcaps 0xf00000: Mono
Node 0x12 [Vendor Defined Widget] wcaps 0xf00000: Mono
Node 0x13 [Vendor Defined Widget] wcaps 0xf00000: Mono
Node 0x14 [Pin Complex] wcaps 0x40018f: Stereo Amp-In Amp-Out
  Amp-In caps: ofs=0x00, nsteps=0x03, stepsize=0x27, mute=0
  Amp-In vals:  [0x00 0x00] [0x00 0x00] [0x00 0x00] [0x00 0x00] [0x00 0x00]
  Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
  Amp-Out vals:  [0x00 0x00]
  Pincap 0x083f: IN OUT HP Detect
  Pin Default 0x01014011: [Jack] Line Out at Ext Rear
    Conn = 1/8, Color = Green
  EAPD: 0x0
  Pin-ctls: 0x40: OUT
  Connection: 5
     0x0c* 0x0d 0x0e 0x0f 0x26
Node 0x15 [Pin Complex] wcaps 0x40018f: Stereo Amp-In Amp-Out
  Amp-In caps: ofs=0x00, nsteps=0x03, stepsize=0x27, mute=0
  Amp-In vals:  [0x00 0x00] [0x00 0x00] [0x00 0x00] [0x00 0x00] [0x00 0x00]
  Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
  Amp-Out vals:  [0x00 0x00]
  Pincap 0x083f: IN OUT HP Detect
  Pin Default 0x01011012: [Jack] Line Out at Ext Rear
    Conn = 1/8, Color = Black
  EAPD: 0x0
  Pin-ctls: 0x40: OUT
  Connection: 5
     0x0c 0x0d* 0x0e 0x0f 0x26
Node 0x16 [Pin Complex] wcaps 0x40018f: Stereo Amp-In Amp-Out
  Amp-In caps: ofs=0x00, nsteps=0x03, stepsize=0x27, mute=0
  Amp-In vals:  [0x00 0x00] [0x00 0x00] [0x00 0x00] [0x00 0x00] [0x00 0x00]
  Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
  Amp-Out vals:  [0x00 0x00]
  Pincap 0x083f: IN OUT HP Detect
  Pin Default 0x01016013: [Jack] Line Out at Ext Rear
    Conn = 1/8, Color = Orange
  EAPD: 0x0
  Pin-ctls: 0x40: OUT
  Connection: 5
     0x0c 0x0d 0x0e* 0x0f 0x26
Node 0x17 [Pin Complex] wcaps 0x40018f: Stereo Amp-In Amp-Out
  Amp-In caps: ofs=0x00, nsteps=0x03, stepsize=0x27, mute=0
  Amp-In vals:  [0x00 0x00] [0x00 0x00] [0x00 0x00] [0x00 0x00] [0x00 0x00]
  Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
  Amp-Out vals:  [0x00 0x00]
  Pincap 0x083f: IN OUT HP Detect
  Pin Default 0x01012014: [Jack] Line Out at Ext Rear
    Conn = 1/8, Color = Grey
  EAPD: 0x0
  Pin-ctls: 0x40: OUT
  Connection: 5
     0x0c 0x0d 0x0e 0x0f* 0x26
Node 0x18 [Pin Complex] wcaps 0x40018f: Stereo Amp-In Amp-Out
  Amp-In caps: ofs=0x00, nsteps=0x03, stepsize=0x27, mute=0
  Amp-In vals:  [0x00 0x00] [0x00 0x00] [0x00 0x00] [0x00 0x00] [0x00 0x00]
  Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
  Amp-Out vals:  [0x80 0x80]
  Pincap 0x08173f: IN OUT HP Detect
  Pin Default 0x01a19011: [Jack] Mic at Ext Rear
    Conn = 1/8, Color = Pink
  EAPD: 0x0
  Pin-ctls: 0x24: IN
  Connection: 5
     0x0c* 0x0d 0x0e 0x0f 0x26
Node 0x19 [Pin Complex] wcaps 0x40018f: Stereo Amp-In Amp-Out
  Amp-In caps: ofs=0x00, nsteps=0x03, stepsize=0x27, mute=0
  Amp-In vals:  [0x00 0x00] [0x00 0x00] [0x00 0x00] [0x00 0x00] [0x00 0x00]
  Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
  Amp-Out vals:  [0x80 0x80]
  Pincap 0x08173f: IN OUT HP Detect
  Pin Default 0x02a19011: [Jack] Mic at Ext Front
    Conn = 1/8, Color = Pink
  EAPD: 0x0
  Pin-ctls: 0x24: IN
  Connection: 5
     0x0c* 0x0d 0x0e 0x0f 0x26
Node 0x1a [Pin Complex] wcaps 0x40018f: Stereo Amp-In Amp-Out
  Amp-In caps: ofs=0x00, nsteps=0x03, stepsize=0x27, mute=0
  Amp-In vals:  [0x00 0x00] [0x00 0x00] [0x00 0x00] [0x00 0x00] [0x00 0x00]
  Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
  Amp-Out vals:  [0x80 0x80]
  Pincap 0x08173f: IN OUT HP Detect
  Pin Default 0x01813011: [Jack] Line In at Ext Rear
    Conn = 1/8, Color = Blue
  EAPD: 0x0
  Pin-ctls: 0x20: IN
  Connection: 5
     0x0c* 0x0d 0x0e 0x0f 0x26
Node 0x1b [Pin Complex] wcaps 0x40018f: Stereo Amp-In Amp-Out
  Amp-In caps: ofs=0x00, nsteps=0x03, stepsize=0x27, mute=0
  Amp-In vals:  [0x00 0x00] [0x00 0x00] [0x00 0x00] [0x00 0x00] [0x00 0x00]
  Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
  Amp-Out vals:  [0x00 0x00]
  Pincap 0x08173f: IN OUT HP Detect
  Pin Default 0x02214011: [Jack] HP Out at Ext Front
    Conn = 1/8, Color = Green
  EAPD: 0x0
  Pin-ctls: 0xc0: OUT HP
  Connection: 5
     0x0c* 0x0d 0x0e 0x0f 0x26
Node 0x1c [Pin Complex] wcaps 0x400001: Stereo
  Pincap 0x0820: IN
  Pin Default 0x99331011: [Fixed] CD at Int ATAPI
    Conn = ATAPI, Color = Black
  EAPD: 0x0
  Pin-ctls: 0x00:
Node 0x1d [Pin Complex] wcaps 0x400000: Mono
  Pincap 0x0820: IN
  Pin Default 0x90f71011: [Fixed] Other at Int N/A
    Conn = Analog, Color = Black
  EAPD: 0x0
  Pin-ctls: 0x00:
Node 0x1e [Pin Complex] wcaps 0x400300: Mono Digital
  Pincap 0x0810: OUT
  Pin Default 0x01446011: [Jack] SPDIF Out at Ext Rear
    Conn = RCA, Color = Orange
  Pin-ctls: 0x00:
  Connection: 1
     0x06
Node 0x1f [Pin Complex] wcaps 0x400200: Mono Digital
  Pincap 0x0820: IN
  Pin Default 0x01c41011: [Jack] SPDIF In at Ext Rear
    Conn = RCA, Color = Black
  Pin-ctls: 0x00:
Node 0x20 [Vendor Defined Widget] wcaps 0xf00040: Mono
Node 0x21 [Volume Knob Widget] wcaps 0x600080: Mono
  Volume-Knob: delta=0, steps=32, direct=0, val=64
  Connection: 0
Node 0x22 [Audio Mixer] wcaps 0x20010f: Stereo Amp-In Amp-Out
  Amp-In caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
  Amp-In vals:  [0x80 0x80] [0x80 0x80] [0x00 0x00] [0x80 0x80] [0x80
0x80] [0x80 0x80] [0x80 0]
  Amp-Out caps: N/A
  Amp-Out vals:  [0x00 0x00]
  Connection: 11
     0x18 0x19 0x1a 0x1b 0x1c 0x1d 0x14 0x15 0x16 0x17 0x0b
Node 0x23 [Audio Mixer] wcaps 0x20010f: Stereo Amp-In Amp-Out
  Amp-In caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
  Amp-In vals:  [0x80 0x80] [0x00 0x00] [0x80 0x80] [0x80 0x80] [0x80
0x80] [0x80 0x80] [0x80 0]
  Amp-Out caps: N/A
  Amp-Out vals:  [0x00 0x00]
  Connection: 11
     0x18 0x19 0x1a 0x1b 0x1c 0x1d 0x14 0x15 0x16 0x17 0x0b
Node 0x24 [Audio Mixer] wcaps 0x20010f: Stereo Amp-In Amp-Out
  Amp-In caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
  Amp-In vals:  [0x00 0x00] [0x80 0x80] [0x80 0x80] [0x80 0x80] [0x80
0x80] [0x80 0x80] [0x80 0]
  Amp-Out caps: N/A
  Amp-Out vals:  [0x00 0x00]
  Connection: 11
     0x18 0x19 0x1a 0x1b 0x1c 0x1d 0x14 0x15 0x16 0x17 0x0b
Node 0x25 [Audio Output] wcaps 0x11: Stereo
  PCM:
    rates [0x560]: 44100 48000 96000 192000
    bits [0xe]: 16 20 24
    formats [0x1]: PCM
Node 0x26 [Audio Mixer] wcaps 0x20010f: Stereo Amp-In Amp-Out
  Amp-In caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
  Amp-In vals:  [0x00 0x00] [0x00 0x00]
  Amp-Out caps: ofs=0x1f, nsteps=0x1f, stepsize=0x05, mute=0
  Amp-Out vals:  [0x1f 0x1f]
  Connection: 2
     0x25 0x0b
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