Possible Duplicate: My sound stopped working today, how can I fix it? I'm baffled by this discrepancy: This speaker test is successful: speaker-test -c 6 -D 'surround51:CARD=PCH,DEV=0' ...
I have Ubuntu 12.04 installed on my laptop. When I go to Sound Settings while logged into my user, no sound card appears detected. In spite of this, the sound on my laptop is working ok, and I can ...