Just did an upgrade on my laptop from 10.04 to 10.10, and audio doesn't work at all anymore. I have the indicator applet, and it seems like everything is working fine. I've even tried installing several mixers in case something is muted, but nothing is (and mixers are showing activity as if everything is working fine).
No application is reporting any errors, they all seem to be playing happily, but no sound comes out. I've tried reinstalling PulseAudio with --purge but that didn't help either.
(If you need any logs or command output please let me know in the comments, I don't know where to look..)
Things tried so far:
- Creating a new user to eliminate any configuration problems
- Creating /etc/asound.conf with these instructions
sudo apt-get install libxine1-ffmpeg- Booted from a live CD (10.04) to eliminate any hardware problems
Have you tried to create a new Ubuntu user just for testing, to see if it is some config causing the trouble?
Try this:
https://wiki.ubuntu.com/PulseAudio#ALSA%20Configuration
try sudo apt-get install libxine1-ffmpeg
Did some more research and found a "solution".
After a lot of googling, finally ran into this launchpad bug:
https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/617647
After seeing comment #39 mentioning my laptop model, I've modified my alsa-base.conf and restarted. In more detail:
sudo vi /etc/modprobe.d/alsa-base.conf(or some other editor instead of Vi)Append the following at the end of the file:
Reboot
Warning: These instructions should only be used with the models mentioned in the launchpad bug discussion and not just on any configuration.
To be honest, I'm not sure what the lines above actually do, but my noob instinct tells me it helps ALSA detect the proper sound card model and load the appropriate driver.