Comment 6 for bug 48029

I stumbled upon a message on the internet while searching for a resolution that said something like:
"After debugging and looking at loaded drivers and such it seems that even if I use the 'ati' driver it tries to load some DRI components from the 'fglrx' driver. After uninstalling the xorg-video-fglrx driver this problem was gone."

I have tried the same, and it worked flawlessly for me. So I would advise anyone else to try this. (And you could also try the other way around: uninstall 'ati' and use 'fglrx' if that's preferred. Haven't tested this though.)

It seems like those two drivers might conflict with each other. (At least they did for me.)