[alsa-devel] ALC892 Support (Intel HDA) - HDMI

[Jeremy Bush]

On May 15, 2011, at 10:45 PM, Raymond Yau wrote:

> 2011/5/16 Jeremy Bush <contractfrombelow at gmail.com>
> 
>>>> However, it seems that the ALSA drivers (even the ones from the realtek
>>>> website) limit the output to 2 channels, 16bit, 88.2KHz.
>>>> 
>>>> Here is my system information that you can see these results:
>>>> 
>>>> 
>> http://www.alsa-project.org/db/?f=5b55a63fea6580dfcbf1a85c7c734f977df798f1
>>>> 
>>>> I see the ALC892 as being supported in the ALSA changelog, but I don't
>> see
>>>> any model options in Documentation/HD-Audio-Models.txt. I'm currently
>> using
>>>> "options snd-hda-intel model=6stack-digout" (as I have 6-jack with a
>> SPDIF
>>>> out on the motherboard) but I'm not sure that is actually doing
>> anything.
>>>> 
>>>> 
>>> As your codec info does not have "Side Playback Channel" and "Side
>> Playback
>>> Switch", it look like the model is used for 5stack motherboard which
>> support
>>> 5.1
>>> 
>>> Do you hear any noise since Valerio reported noise appear when using the
>>> model=auto in
>>> 
>>> http://thread.gmane.org/gmane.linux.alsa.devel/84653/focus=84724
>> 
>> I'm not actually trying to get analog working or the front-panel output.
>> Only surround sound over HDMI. I have tried model=auto and didn't notice
>> anything different than specifying the model.
>> 
>>>> Is what I'm getting now the best I should expect over HDMI? I saw
>> support
>>>> in ALSA and bought the motherboard expecting it to be fully supported
>> since
>>>> the changelogs say support was added.
>>> 
>>> Codec: Intel CougarPoint HDMI
>>> 
>>> Address: 3
>>> AFG Function Id: 0x1 (unsol 0)
>>> Vendor Id: 0x80862805
>>> Subsystem Id: 0x80862805
>>> Revision Id: 0x100000
>>> No Modem Function Group found
>>> 
>>> Node 0x03 [Audio Output] wcaps 0x6611: 8-Channels Digital
>>> 
>>> 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="HDMI 0", type="HDMI", device=3
>>> Converter: stream=8, channel=0
>>> Digital: Enabled
>>> Digital category: 0x0
>>> PCM:
>>>   rates [0x7f0]: 32000 44100 48000 88200 96000 176400 192000
>>>   bits [0x1e]: 16 20 24 32
>>>   formats [0x5]: PCM AC3
>>> Power states:  D0 D3 EPSS
>>> Power: setting=D0, actual=D0
>>> 
>>> Node 0x06 [Pin Complex] wcaps 0x40778d: 8-Channels Digital Amp-Out CP
>>> Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
>>> Amp-Out vals:  [0x00 0x00]
>>> Pincap 0x09000094: OUT Detect HBR HDMI DP
>>> Pin Default 0x18560020: [Jack] Digital Out at Int HDMI
>>>   Conn = Digital, Color = Unknown
>>>   DefAssociation = 0x2, Sequence = 0x0
>>> Pin-ctls: 0x40: OUT
>>> Unsolicited: tag=06, enabled=1
>>> Power states:  D0 D3 EPSS
>>> Power: setting=D0, actual=D0
>>> Connection: 1
>>>    0x03
>> 
>> So this seems to say I should be getting 7.1 over the HDMI output. What do
>> I need to change in my config to actually get it? I tried messing around
>> with /sys/class/sound/hwC1D3/user_pin_configs but I'm not sure what to
>> change.
>> 
>> 
> Do your hdmi monitor support 7.1 ?
> 
> [ 2.090473] HDMI: detected monitor at connection type HDMI
> [    2.090475] HDMI: available speakers: FL/FR
> [    2.090477] HDMI: supports coding type LPCM: channels = 2, rates =
> 44100 48000 88200, bits = 16
> [    2.090480] HDMI hot plug event: Pin=6 Presence_Detect=1 ELD_Valid=1

Yes, it's connected to an Onkyo TX-SR607 7.2-Channel receiver.

Jeremy