I have HDMI audio (surround 5.1) working with a GT430 on Ubuntu 11.04 beta2. After reading various pages online, I found nothing conclusive, but eventually it worked.
Edit /etc/modprobe.d/alsa-base.conf Add the line:- options snd-hda-intel probe_mask=8 I also cleared the users pulseaudio configuration, but I don't know if that was required: rm -R ~/.pulse Then reboot. FYI, this is how I came to the answer:- It became apparent that there are four hdmi devices, of which only one is the real device. Whether this is in the hardware or just due to the hdmi audio driver, I have know idea. 1. Disabled onboard audio (to simplify things and make the HDMI device CARD 0). 2. Use "aplay -l" to list the audio devices. My system showed four (0 through to 3). 3. Use "speaker-test --channels 6 --test=wav --device hdmi:0,X" (where the X on the end is the hdmi device to use) For example, on my system the following command played the audio when running the speaker test:- speaker-test --channels 6 --test=wav --device hdmi:0,3 4. Adding the probe_mask value to alsa-base.conf I noticed the available hdmi devices was reduced. 5. After noticing the field was a mask, I used the value 8 to specify only the fourth device (device 3). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/691135 Title: no sound via nvidia gt430 hdmi output with pulseaudio -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
