[alsa-devel] Smart 5.1 function not working on VIA VT1708S with *three* jacks on mainboard

[Viliam Kubis]

It might be. It is important not to mix VT1708 and VT1708S. For VT1708S,
the following DACs are used in code:

  /* config dac list */
  switch (i) {
  case AUTO_SEQ_FRONT:
  	spec->multiout.dac_nids[i] = 0x10;
  	break;
  case AUTO_SEQ_CENLFE:
  	spec->multiout.dac_nids[i] = 0x24;
  	break;
  case AUTO_SEQ_SURROUND:
  	spec->multiout.dac_nids[i] = 0x11;
  	break;
  case AUTO_SEQ_SIDE:
  	spec->multiout.dac_nids[i] = 0x25;
  	break;
  }

  So 0x12 is not used for any of the surround outputs.

  On Fri, 09 Jul 2010 03:32:13 +0200, Raymond Yau
  <superquad.vortex2 at gmail.com> wrote:

>> 2010/7/8 Clemens Ladisch <clemens at ladisch.de>
>>
>>> Viliam Kubis wrote:
>>> > Hello, for quite some time the "Smart 5.1" function in alsa is not
>>> working
>>> > properly when motherboard has only 3 audio jacks.
>>> >
>>> > speaker-test -c 4 -t wav -Dsurround40
>>> >
>>> > Channels count (4) not available for playbacks: Invalid argument
>>>
>>> Please try the patch below.
>>>
>>> (This function uses 0x12 and 0x13 as the NIDs for the center/LFE and
>>> side DACs.  Shouldn't these be 0x24 and 0x25, as per the datasheet?)
>>>
>>
>> Node 0x12 seem to be for digital out since it connected to node 0x20
>>
>> I guess we still lack the info about the retasking of pink and blue  
>> jack to
>> the surround output
>>
>>
>> Node 0x12 [Audio Output] wcaps 0x611: 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="VT1708S Digital", type="SPDIF", device=1
>>   Converter: stream=5, channel=0
>>   Digital: Enabled
>>   Digital category: 0x0
>>   PCM:
>>     rates [0x5e0]: 44100 48000 88200 96000 192000
>>     bits [0xe]: 16 20 24
>>     formats [0x1]: PCM
>>   Power states:  D0 D1 D2 D3
>>   Power: setting=D0, actual=D0
>>
>>
>> Node 0x20 [Pin Complex] wcaps 0x400701: Stereo Digital
>>   Pincap 0x00000010: OUT
>>   Pin Default 0x074311f0: [Jack] SPDIF Out at Ext Rear Panel
>>     Conn = ATAPI, Color = Black
>>     DefAssociation = 0xf, Sequence = 0x0
>>     Misc = NO_PRESENCE
>>   Pin-ctls: 0x40: OUT
>>   Power states:  D0 D1 D2 D3
>>   Power: setting=D0, actual=D0
>>   Connection: 1
>>      0x12
>> _______________________________________________
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>> Alsa-devel at alsa-project.org
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>


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