https://bugs.freedesktop.org/show_bug.cgi?id=33348
--- Comment #19 from Dawit Alemayehu adawit@kde.org 2011-02-24 13:27:54 PST --- (In reply to comment #18)
(In reply to comment #17)
Well Xv is most definitely enabled on my system, but I fail to see how that helps with the kwin composting issue. Perhaps, I misunderstood your question ? I have attached the output of the xvinfo just the same. If that was what you were suggesting, then no it does not help with the kwin issues.
Use Xv; playback a video using Xv. Xv uses the 3D engine just like OpenGL. If the 3D driver is not properly emitting some 3D state, but Xv is, OpenGL should work properly after you've used Xv since the missing state will now be programmed properly. xvinfo is not enough, you actually have to render some video.
Okay, when I do that then there is a very minor improvement. The artifacts shown in the screen shots above are no longer there, but I still get a completely dark screen with only the mouse pointer showing...