It seems to have been a hardware problem all-along. I'm not sure what
the nature of the problem is precisely but the speaker on my laptop
seems to have a malfunction of the sort where ALSA decides to quit
sending it a signal after some event. I can now re-boot ALSA and get
the sound to come back
The problem persists in Ubuntu 12.04 after upgrade from 11.10. If
nobody has a brilliant idea I'll format the hard-drive and reinstall.
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https://bugs.launchpad.net/bugs/925910
Title:
A
Oh no, the sound still disappears, it just takes longer than it used to.
But the video problem is persistent. It doesn't appear like anyone has
any idea what the problem is, so if it does not vanish on the upgrade to
12.04, I'll try formatting the hard-drive and starting with a fresh
install. I
Weird, I don't know what's changed. Ran an upgrade last night. Now
sound works. But only one application can use sound at any time. If
flash is playing in Firefox, and if I try to start a movie in mplayer,
the movie will either play and be silent, or it will be always paused. I
can move up and
** Attachment added: "Output from killall pulseaudio and strace -f pulseaudio
-vv."
https://bugs.launchpad.net/bugs/925910/+attachment/2709497/+files/killall.strace.ascii
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