[alsa-devel] HD-Audio device unsuppored (Nvidia G2xx-series GPU implemented)

[Stefan Ringel]

Am 21.12.2009 11:55, schrieb Takashi Iwai:
> At Sat, 19 Dec 2009 13:36:23 +0100,
> Stefan Ringel wrote:
>   
>> Am 16.12.2009 22:15, schrieb Stefan Ringel:
>>     
>>> Am 14.12.2009 18:45, schrieb Takashi Iwai:
>>>   
>>>       
>>>> At Mon, 14 Dec 2009 12:52:40 +0100,
>>>> I wrote:
>>>>   
>>>>     
>>>>         
>>>>>>         
>>>>>>             
>>>>>     
>>>>>       
>>>>>           
>>>>>>>> one codec-id missed (0x10de000d) and codec-name is "G2xx HDMI".
>>>>>>>>             
>>>>>>>>                 
>>>>>>       
>>>>>>
>>>>>> OK, I'll update.
>>>>>>         
>>>>>>             
>>>>>     
>>>>>       
>>>>>           
>>>> Below is the updated patch.  This also replaces the PCI ID check using
>>>> the generic hd-audio class check.
>>>>
>>>>
>>>> Takashi
>>>>
>>>>   
>>>>     
>>>>         
>>> Hi Takashi,
>>>
>>> I have a theory,
>>>
>>> 4 codec with 2 channels bundling to one pcm device for 8 channels
>>> uncompressed lpcm audio and compressed audio over first codec.
>>>
>>> Actual configuration is 4 separate pcm device.
>>>
>>>
>>>   
>>>       
>> Hi Takashi,
>>  
>> I tested your patch and it doesn't work.
>> I checked caps from nodes 0x04 and 0x05 and comparing with  
>> http://download.intel.com/standards/hdaudio/pdf/hda034-a2.pdf. document.
>> The configuration is 4 full HDMI codec not 4 2-channels pcm codec. It
>> have CP-flag, ext-channel and in pin-widget that HDMI-flag.
>>     
> But still it's not sure whether it's really compliant.
> Nvidia HDMI codecs have been incompatible with that standard although
> they have already supported 8 channels.
> And, one wonders why there are 4 HDMI codecs there.
>
> Anyway, try to set up just one codec and don't do anything else.
> If it's a standard codec, patch_intelhdmi.c would work.  Create a new
> patch code that ignores the instances with codec->addr > 1, so that
> you concentrate on only the first codec address.
> Or, patch_atihdmi.c can be used by changing the fixed pins...
>
>
> Takashi
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>   

I tested your patch  with using HDA-Analyzer once again. I enabled and
disabled the codecs step to step and as I enabled the second codec I
hear rear left and rear right, but not other channels. As I enabled all
codecs I hear only rear
left and rear right.

Stefan Ringel <stefan.ringel at arcor.de>

-- 
Stefan Ringel <stefan.ringel at arcor.de>