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Old 12-22-10, 08:06 AM   #3
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Join Date: Dec 2010
Posts: 13
Default Re: HDMI audio not working on 10.10 x86_64 260.19.29

Originally Posted by whig View Post
Search this forum, a bit has been said. This one for starters.
After some messing around, including some good (and bad) advice from nVidia support, including the following link, I was able to get 5.1-ch sound in some circumstances:

the trick for my setup was to add the following line to /etc/modprobe.d/sound.conf:

options snd-hda-intel enable_msi=0 probe_mask=0xffff,0xfff2

and then use the device:


So now I can get 5.1-sound using:

speaker-test -D plughw:0,7 -c6

and I can even get other output sample rates (e.g., 48, 96, 192KHz) like:

speaker-test -D plughw:0,7 -c6 -p 1000000 -t sine -r 192000 -f 1000

However, System->Preferences->Sound still shows the only available device as "HDMI stereo", and I only get 2-channel audio from rhythmbox, even with multi-channel .flac files.

And I also still get absolutely no sound from mplayer or xine.

Sorry for my ignorance, but how do I get these other applications to understand the equivalent of plughw:0,7, or set the default sound hardware device to this?

nlamarra is offline   Reply With Quote