View Full Version : [ubuntu] Help with Nvidia HDMI sound

March 2nd, 2011, 05:55 AM
Ubuntu 10.10
Intel Core i7-740QM
Nvidia GT425M

$ speaker-test -c 2 -r 48000 -D hw:1,7
$ aplay -D hw:1,7 some_file.wav
Both of the above work, but otherwise, I get no sound via HDMI.

load-module module-alsa-sink device=hw:1,7
load-module module-alsa-source device=hw:1,7
I tried loading the lines above into /etc/pulse.d/default.pa w/o success.

I'm lost and bewildered. Can someone help please?

March 2nd, 2011, 06:47 PM
What do you have selected in 'Sound Preferences' on the 'Hardware' tab, both for device and profile? Have you seen this:

March 2nd, 2011, 07:15 PM
Thanks for the link, that's a lot to absorb. Kernel patches, ugh.

I have "HDA Nvidia Digital Stereo (HDMI) " as my chosen device and "Digital Stereo (HDMI)" as profile.

March 2nd, 2011, 07:39 PM
Use the alsa-info-script to provide detailed information.
Run this command in a terminal:

wget http://www.alsa-project.org/alsa-info.sh -O alsa-info.sh && bash alsa-info.sh
Choose the upload option and provide a link for the output.

Yeah, you could learn a lot on that thread. I don't use hdmi so I have to defer to the experts.