I have opensuse 13/1 installed with lastest Catalyst driver (14.6). Everything fine, but I have lags in gnome-shell effects.

Added export CLUTTER_VBLANK=none to the /etc/environment, launched command amdconfig --set-pcs-u32=DDX,ShadowPrimary,1, turned off tear free in CCC. But I still have lags.

With opensource drivers gnome-shell worked smoothly, but i had no textures in Civilization V, so I have to use fglrx.