Re: Black background on Overview Gnome-shell 3.6.2.
Originally Posted by Kow
I was trying out debian testing a few days ago and had this problem sporadically. If I logged-out and logged back in the background would appear. I guess the important thing here is that this is probably an upstream issue.
You should check out phillinux's post here, it links to an explanation to what the Ubuntu devs have done to solve the problem.