Comment 108 for bug 438868

Ubuntu 9.10 64-bits with compiz here,

I've found another way to trigger that bug than with screensaver or suspend/resume (and yes, I do have the bug with screensaver and suspend/resume ;-) ) :

I've activated the up-right corner in compiz to act as "show desktop".

1. I move my mouse to the up-left corner once --> all windows (including firefox's) move away from the desktop
2. I move my mouse to the up-left corner a second time --> all windows (including firefox's) move back to their original position

If firefox was the window with focus before 1 it has focus again after 2, but the awesome bar doesn't work (no suggestion) (exact same symptom as with suspend/resume and screensaver)

If I change focus to another window and come back to firefox it works again. Minimize+maximize also make it works (same thing when caused by screensaver or suspen resume).

There is also a keyboard shortcut to "show desktop" in compiz (ctrl+alt+D on my laptop), but it does *not* trigger the bug after step 1+2.

Besides, I tried with other compiz-related actions ("scale", "expose" and 2 different "application selector") and found none that would cause the problem.

Hope it helps figuring out what's the reason for this bug :-)