I was able to reproduce the bug with xorg-x11-server 1.9.99.1-2.20101201 shipped as part of Fedora rawhide.
Just download the KDE live cd, and start the holer testcase. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/325074 Title: Window redrawing does not work properly with KDE4 taskbar tooltips. Status in KDE Base Components: Won't Fix Status in X.Org X server: Fix Released Status in “xorg-server” package in Ubuntu: Fix Released Bug description: On Kubuntu Jaunty, when a KDE taskbar tooltip is drawn on the screen, the last place in which a tooltip was drawn becomes transparent in any window, showing whatever is behind it. This bug only occurs, however, if the tooltip was drawn onto an area of the screen where it does not cover the window. If the tooltip covers any part of a window, then the transparent blocks where the old tooltip was do not appear. Because of this, maximized windows are not affected. To manage notifications about this bug go to: https://bugs.launchpad.net/kde-baseapps/+bug/325074/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
