I think https://bugs.freedesktop.org/ is an better place for this.
yes right now the screen corrupts if games like oilrush or arma2 are started.
That would probably be fallout from the llvm 3.0 libraries. I've encountered some nasty bugs when building against them. That's the biggest change that he's listed in his build process lately.
i purge oibaf and now use the ubuntu 12.04 files and now oilrush works again...