Comment 4 for bug 286966

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Erik Reuter (misc71) wrote : Re: pulseaudio deamon can not be stopped

I had a similar problem that may be related. I first noticed that my sound was not working
after a pulseaudio update. 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. I think that may be 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