Ubuntu Intrepid audio problems - Lenovo T60

My audio mysteriously stopped working after an upgrade from 8.04 to 8.10. After spending some time it turns out my PCM settings were muted in gnome-volume-control. This can be started from the command line or from the audio icon in the task panel on top ( double click )

Check your PCM Mute/Unmute settings. This is [...]

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