[mythtv-users] MythTV 0.24 HDMI audio problem

Jarod Wilson jarod at wilsonet.com
Sun Dec 26 02:48:11 UTC 2010

On Dec 25, 2010, at 9:33 PM, Jarod Wilson wrote:

>>> Then *just* type "speaker-test", I *DO* get sound!  At this point, I
>>> can use aplay to play wav files.
>>> Note, that if I change the asound.conf file to have:
>>> pcm "hw:0,3"
>>> Then I don't get any sound.  with "hw:0,7", "hw:0,8" and "hw:0,9" I
>>> *do* get sound.
>> For those interested.
>> For hdmi and ALSA, use device names like the following:
>> hdmi:0,0
>> hdmi:0,1
>> hdmi:0,2
>> hdmi:0,3
>> For my setup, hdmi:0,1 is the only one that works.
>> No need to use hw:0,7 and such like.
> Finally got back to poking at my GT220 tonight. I've finally successfully
> gotten audio off the thing using aplay, but the *only* device that works
> is plughw:x,y (x=1, y={3,7,8,9} all work, in this case). hw:x,y results
> in "Channels count non available", as does hdmi:CARD=NVidia and hdmi:1,0.
> hdmi:1,{1-3} all result in "No such file or directory". On to poking via
> mythtv next...

Not quite. Further amusement with alsa-utils:

  $ speaker-test -D hdmi:CARD=NVidia -c 8

actually does the right thing. Still with the "Channels count non available"
when trying the same -D option to aplay, which sounds like either an aplay
or alsa driver bug to me.

Jarod Wilson
jarod at wilsonet.com

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