I recently switched from KDE to Gnome 3 and I am so far very happy with
the decision. One thing that bothers me since then is that the sound
does not work when restarting the computer or waking it up from suspend.
After a while I figured that a simple
sudo killall pulseaudio fixes
the problem — but only until the next reboot. Has anyone a hint what
the problem could be/ I found quite a few similar problem descriptions
on the internet but with no satisfying solutions so far.