Comment 50 for bug 815996

Yesterday I used Unity in 12.04 a whole working day (about 8 hours) without getting the freeze on desktop switches or "exposé"-switches. However, since I switched from XFCE, I think the desktop was still managed by XFCE, since there was no desktop background on my Unity desktop. My feeling is that that shouldn't matter for whether or not the present bug happens.

Compiz was managing the desktop, and all the usual functions worked. The transitions between workspaces were always snappy, and as said, I got no freezes or crashes. My computer is still a bit too weak to really handle Unity though, so I'm back with XFCE from now on.