As describes here : https://bugs.launchpad.net/ubuntu/+source/linux/+bug/363870 Installing linux-backports-modules-alsa-karmic and rebooting should fix your problem at least it did for me. --yml
As describes here : https:/ /bugs.launchpad .net/ubuntu/ +source/ linux/+ bug/363870 -modules- alsa-karmic and rebooting should fix your problem at least it did for me.
Installing linux-backports
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