[ubuntu] Volume indicator sounds stopped working.

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http://ubuntuforums.org – I have been having issues with my audio on my laptop (acer aspire m5-583p-6428) with Ubuntu 13.04 and 13.10. The sound will randomly stop working about once a day for no apparent reason. The only way that I can get it back is with a reboot. I have tried a few solutions that I have found with the google but with no success. I tried this: http://hanynowsky.wordpress.com/2012...-xps-15-l502x/ (it didn't help) The thing that makes noise when you turn the volume up or down with the keyboard (which i will now call a sound indicator) has stopped working. The visual indicator that pops up on th (Hardware)