Version: (using KDE 4.3.1) OS: Linux Installed from: openSUSE RPMs This happens in both openSUSE 11.2 and KUbuntu 9.10. To reproduce: - disable desktop effects - add a new panel, at the top; insert a "task manager" widget - resize the new panel, if needed - reboot / relogin - open several windows and maximize them (one might be enough) - hover the mouse alternatively over the 2 panels in places that show tooltips (e.g. program names in Task Manager) - when a new tooltip is shown, the area that was covered with the previous tooltip (from the other panel) is replaced with content from a window that is underneath the one on top (might be the desktop) I don't think it's relevant that the second panel has a Task Manager. I guess anything that shows tooltips will do. There's a screenshot at http://web.clicknet.ro/mciobanu/kde_wrong_window_content.png
Created attachment 38869 [details] attachment from initial report Thanks for the report. Only a small note: remember to attach files directly into bugzilla and not link to external URL. If you attach a file we are sure that the file will not be deleted. Thanks again :-)
(Actually I meant to attach a screenshot, but it wasn't immediately obvious how to do it. I guess I missed the option, as when adding comments there is an obvious "Add an attachment" link.) I wanted to add that 2 panels are not really needed. The same happens in openSUSE 11.2 (and perhaps elsewhere, I haven't tried) with the single, default panel, but it only happens sporadically, while the steps in my original post always seem to lead to this issue. Also, I seem to remember something like this as far back as KDE 4.1, so it's not something new.
The issue was reported at bug 177959 / bug 173686. It is a bug in the video server X.org *** This bug has been marked as a duplicate of bug 177959 ***
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 vote for it and make some polite noise at: https://bugs.freedesktop.org/show_bug.cgi?id=22566