Comment 61 for bug 745608

I strongly believe that the big average of the users who are having this same problem are unable to find this page (since the issue is hard to explain) and are thus unable to workaround the issue. I myself have spent 2 days searching - which speaks for itself, doesn't it?

So even if the package maintainers only decide to automatically activate DebugWait on these cards by default it would be a great improvement that would solve all future problems.There should be enough code already present in the automatic configuration detection logic of Xorg to add this small check with a few lines of code. Though, I'm not a package maintainer nore do I know how it works. Thus my estimates are surely not the best.

All summed up: just hack it so that it works for the masses. Nobody who got a intel GMA900 chipset cares for performance anyway, which means nobody would ever complain anymore.