Comment 5 for bug 455417

I am encountering the same problem Daniel Mowan described. Ubuntu detects my sound card (built in on the motherboard, a Gigabyte GA-EX58-UD5) only once in every several restarts. When this happens, I also cannot properly shut down the computer. Choosing to shut down only logs out, and once logged out, the shut down option seems to do nothing.

~$ apt-cache policy pulseaudio
pulseaudio:
  Installed: 1:0.9.22~0.9.21+stable-queue-32-g8478-0ubuntu14
  Candidate: 1:0.9.22~0.9.21+stable-queue-32-g8478-0ubuntu14
  Version table:
 *** 1:0.9.22~0.9.21+stable-queue-32-g8478-0ubuntu14 0
        500 http://nl.archive.ubuntu.com/ubuntu/ lucid/main Packages
        100 /var/lib/dpkg/status

~$ lsb_release -rd
Description: Ubuntu 10.04.1 LTS
Release: 10.04