https://bugs.freedesktop.org/show_bug.cgi?id=72387
--- Comment #10 from Michel Dänzer michel@daenzer.net --- Your options right now are basically:
* Use fullscreen apps, and make sure the compositing manager unredirects fullscreen windows. * Using an OpenGL compositing manager may help to avoid tearing with non-fullscreen apps as well. * Use EXA with Option "EXAVSync" (but read the radeon manpage about its caveats).