Originally Posted by artem
I've got almost the same problem - when I log off, KDM (from KDE 3.5.10) screen is all black. X restart also helps.
However no other applications are affected (and I rarely log off so it doesn't bother me much).
If it only happens after logout, then you can fix it by adding TerminateServer=true into kdmrc. That will
restart X on each logout.