I am using ubuntu 12.10.
Earlier sound used to randomly turn off when I closed my laptop's lid and laptop went to sleep, after waking it up there used to be no sound. I would then restart laptop to get the sound back.
Right now, I was watching a movie on VLC and sound suddenly muted. I restarted and have no sound yet. Any way to get it back on? and is there any permanent solution to this?
I researched other similar questions on askubuntu nothing helped.