Comment 77 for bug 368049

i'm experiencing a similar problem. however it's not neccessary to switch the emerald-theme, but i have to switch between the window managers or at least reload them (compiz has to be involved: either switch from compiz, switch to
compiz or reload compiz). i am not able to reprocuce it, it happens randomly

i have a ATI radeon mobility 9800 and i'm using radeon V6.12.2 and xorg 1.6.3
i'll attach my x-logfile

maybe the following is helpful, maybe completely irrelevant:
when i don't load the module dri2, compiz starts, but the screen is completely white, only the mouse pointer is visible. the system stays usable, i can click around and it reacts, but invisible. when i interrupt (ctrl+C) compiz again, the white disappears and my system is normally usable again.
when i set the server flag "AIGLX" to "off" compiz doesn't start