[Bug 69341] [radeonsi] KDE 4.11 is EXTREMELY slow with Raster QT backend

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=69341

--- Comment #6 from Denis M. (Phr33d0m) <god at politeia.in> ---
Created attachment 86376
  --> https://bugs.freedesktop.org/attachment.cgi?id=86376&action=edit
color-corruption.png

I also have this color corruption all over the place with Native/OpenGL backend
and Glamor. As well as huge slowness/laggyness, glxgears at:

$ ▶ glxgears 
Running synchronized to the vertical refresh.  The framerate should be
approximately the same as the monitor refresh rate.
237 frames in 5.0 seconds = 47.022 FPS
250 frames in 5.0 seconds = 49.853 FPS
234 frames in 5.0 seconds = 46.726 FPS
253 frames in 5.0 seconds = 50.592 FPS
234 frames in 5.0 seconds = 46.440 FPS
256 frames in 5.0 seconds = 51.165 FPS
236 frames in 5.0 seconds = 46.952 FPS

On Radeon HD7870.

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