It's not that your sound isn't working... it's just "muted" (although I wonder why it makes the static sound instead of being completely quiet...).
To get your sound back here's what you need to do:
- Double click on the speaker icon in the menubar
- Alternatively, you can press Alt+F2 and type in: gnome-volume-control and click 'Run'
Hope this helps others out there who experience the same audio "stuttering" problem.
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