Version: (using KDE 4.2.90) OS: Linux Installed from: Fedora RPMs On my system I see random corruptions caused by plasma popups. The popup's shape distorts a window on a random position, so that plasma's background shines through the window. Happens a few times a week, however I haven't found a reliable way to reproduce the artifacts. I saw this corruptions on Fedora-11 (KDE-4.2, intel-2.7, xorg-1.6), and now on Rawhide (KDE-4.2.90, intel-2.8pre, xorg-1.7-pre). It happens with both intel and vesa driver, so I don't think its driver related. So either this is a Xorg bug, or a kwin or plasma bug.
Created attachment 34949 [details] amarok window corrupted
Created attachment 34950 [details] kopete window artifact
Created attachment 34951 [details] skype window artifact
*** This bug has been marked as a duplicate of bug 173686 ***
This is clearly a Xorg bug, I was able to write a xlib-only testcas (as I was asked for), but then nothing happend. If you want this bug fixed, please make some polite noise at: https://bugs.freedesktop.org/show_bug.cgi?id=22566