snd_hda on Optiplex 980

Alexander Motin mav at
Wed Nov 24 21:02:42 UTC 2010

On 24.11.2010 22:22, Jonathan Chen wrote:
> On 24/11/2010 20:38, Alexander Motin wrote:
>> On 24.11.2010 00:07, Jonathan Chen wrote:
>>> I recently migrated my 8-STABLE/amd64 system to a Dell Optiplex 980 and
>>> have discovered that the sound system isn't recognised by snd_hda.
>>> cat /dev/sndstat:
>>> FreeBSD Audio Driver (newpcm: 64bit 2009061500/amd64)
>>> Installed devices:
>>> pcm0: <HDA NVidia (Unknown) PCM #0 DisplayPort> (play)
>>> pcm1: <HDA NVidia (Unknown) PCM #0 DisplayPort> (play)
>>> pcm2: <HDA NVidia (Unknown) PCM #0 DisplayPort> (play)
>>> pcm3: <HDA NVidia (Unknown) PCM #0 DisplayPort> (play)
>>> pcm4: <HDA Realtek ALC269 PCM #0 Analog> (play/rec) default
>>> pcm5: <HDA Realtek ALC269 PCM #1 Analog> (play/rec)
>> What do you mean by "not recognized"? Doesn't above tells opposite?
> Well, the "(Unknown)" string is a bit of a worry; but the big source of
> disappointment is that there's no sound :(

Unknown there means that driver doesn't know this specific CODEC ID. In 
most cases it is not a problem. In this case any way I don't have ane 
feedback yet about DisplayPort support and especially NVidia one.

Most interesting here as I understand are analog outputs. driver 
detected two different and it would bi nice if you tested all 
combinations of devices and outputs and reported what exactly is not 

It would be useful if you posted somewhere full _verbose_ dmesg.

Alexander Motin

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