I have resolved the issue. Apparently the "Profile" in "Sound
Preferences" changed for on its own to a profile that did not work.
Cycling through the profile while playing an audio file resolved the
issue.
** Changed in: alsa-driver (Ubuntu)
Status: New => Invalid
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[Realtek ID 892] ALS
** Attachment added: "AlsaDevices.txt"
https://bugs.launchpad.net/bugs/644337/+attachment/1617994/+files/AlsaDevices.txt
** Attachment added: "BootDmesg.txt"
https://bugs.launchpad.net/bugs/644337/+attachment/1617995/+files/BootDmesg.txt
** Attachment added: "Card0.Amixer.values.txt"
Public bug reported:
Sound was working, but suddenly stopped for all applications. I have
tried rebooting to no avail. When wearing headphone I hear occasional
'pops.'
ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: alsa-base 1.0.22.1+dfsg-0ubuntu3
ProcVersionSignature: Ubuntu 2.6.32-24.43
I am having the same problem with Evince Document Viewer 2.22.1.1 on
8.04 Beta, I did not have this problem with 7.x
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PDF files do not come up in Evince Document Viewer 2.20.1
https://bugs.launchpad.net/bugs/178528
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