I had a similar problem. There was a partial workaround to get sound working again here:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/288861 where alsamixer -Dhw revealed that the PCM volume was at zero, and turning it up restored sound operation. I still have the problem that my system hangs during shutdown while it is shutting down ALSA. Possibly ALSA cannot be shutdown because pulseaudio -k does not work, and pulseaudio is an ALSA client. Here is a list of similar bugs: #288861 #288652 #288093 #288039 #286966 #286430 #285965 -- pulseaudio errors during boot up https://bugs.launchpad.net/bugs/286430 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
