Comment 13 for bug 519066

I don't know if this helps to find the bug, but today, after starting, no sound at all, while speakers were working yesterday.
In System > Preferences > Sound, there is nothing now in the "hardware" tab.
Having no input/output sound is quite an annoying bug! I don' want to reinstall alsa at each startup! (by the way, only output works in general, microphone has never worked since I installed ubuntu 10.04)