https://bugs.freedesktop.org/show_bug.cgi?id=79223
--- Comment #16 from Pierre Ossman pierre-bugzilla@ossman.eu --- Right now it feels like a lot of the blame falls on xbmc. But at the same time, this works on nouveau and presumably the proprietary drivers.
I guess the behaviour that xbmc is expecting is that the only time it will wait for a vblank, is that explicit vblank waiting in step 2.?
Now is that an unreasonable expectation? Or should the radeon driver be fixed to support this?