Those random (when desktop effects are on) freezes occur also on my machine (Jaunty/KDE4.2/KWin) which has Intel i915 chipset integrated graphics. So it does not seem to be GPU vendor-related.
Those random (when desktop effects are on) freezes occur also on my machine (Jaunty/ KDE4.2/ KWin) which has Intel i915 chipset integrated graphics. So it does not seem to be GPU vendor-related.