Public bug reported:
Yesterday (9/09/2014) I updated Ubuntu base via Software Updater and now
my sound does not work out of built in laptop speakers or the headphone
jack.
The Sound Settings (unity-control-center sound) does not show any
devices. AlsaMixer, after F5 (show all) has 2 channels I
Booted into recovery mode via grub and the sound worked as expected.
Then I booted normally and the sound works again. So as far as I am
concerned this bug can be closed. I'm not sure if that something I
can/should do though.
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