Version: unspecified (using Devel) OS: Linux When I activate the present windows effect the window contents gets messy - some windows are upside down plus some are somewhat cropped. When a window is selected and the effect ends everything returns to normal. Other effects (desktop grid, wobbly windows) work well without this distortion. Reproducible: Always Relevant software versions: Qt: 4.6.3 KDE Development Platform: 4.4.92 (KDE 4.4.92 (KDE 4.5 RC2)) KWin: 4.4.92 (KDE 4.4.92 (KDE 4.5 RC2)) X.Org X Server 1.8.99.904 (1.9.0 RC 4) Module radeon: compiled for 1.8.99.904, module version = 6.13.1 Linux 2.6.34.1 SMP x86_64 (with KMS)
It also seems that the alt tab box switch effect draws the windows upside down.
don't knwo whether it's already supported in rc2, but add a blacklist entry for Lanczos and your driver string (as reported by glxinfo, see comment #7) also post the successfull string *** This bug has been marked as a duplicate of bug 243181 ***