kwin crash on second (and subsequent) login
|||KDE Base Workspace||
At boot time, the KDE session always opens successfully. If I log out and try to log in again, kwin crashes immediatly after entering my password and pressing enter, without displaying KDE desktop, instead I'm back to the login screen. The next attempt is always successful and the KDE session opens, but with the desktop effects disabled.
After opening System Settings, then Desktop Effects, I can see the message " OpenGL compositing (the default) has crashed KWin in the past." If I re-enable the desktop effects and log out, then try to log in again, the crash repeats as described above. This is 100% reproductible.
The only two ways to be able to log in without crash when the desktop effects are enabled are rebooting or killing the X-server.
This happens with kubuntu 11.10 (on a fresh install but also with all updates) and 12.04 alpha1, but this did not happen with kubuntu 11.04. This happens with both 32 bit and 64 bit versions.
DistroRelease: Ubuntu 11.10
Package: kde-window-manager 4:4.7.1-0ubuntu5
Uname: Linux 3.0.0-14-
Date: Mon Dec 12 10:34:43 2011
InstallationMedia: Kubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111012)
UpgradeStatus: No upgrade log present (probably fresh install)
|Changed in kdebase-workspace:|
|importance:||Unknown → High|
|status:||Unknown → Won't Fix|