Comment 53 for bug 159594

Having watched this a couple of weeks now, I don't think it is related to Compiz. Actually, I do think it might be related to Firefox and possibly some other interfering component.

I switched to Chromium quite soon after my comment above (#51) and didn't experience any more WSOD crashes since then, even after re-activating Compiz. This is somehow notable as the machine on which I was experiencing the crashes is a 'production' system being used for software development more than ten hours a day, and actually I only remember the system crashing when I was using Firefox; in some, if not all (but I am not sure about this) cases right after Firefox gained focus and I started mouse movement. This would also partially match assumptions in comment #21 and might point to some interference between Firefox, focus handling and mouse movement.