Created attachment 31743 [details] system, kernel, package info, log cuts glxgears' FPS value is down after upgrade mesa-7.6.1_rc2 up to 7.7_rc1 (~1500 FPS -> ~300 FPS) KDE 4.3.4 with KWin effects, X11 crashes after minimizing/restoring windows. System console (for exaple, Ctrl+Alt+F1) 'image' after switching looks like an color-vortex disaster
Please attach your full xorg log and the output of: LIBGL_DEBUG=verbose glxinfo It sounds like you aren't getting 3D acceleration.
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