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On April 23rd I did an upgrade from kubuntu 10.10 to 11.04 Beta2 which
basically worked.
After reboot I logged in via KDM. The KDE splash screen was shown but never
disappeared. Via console (Ctrl + Alt + F1) I found out that kde was fully
running.
After switching back to KDE (Ctrl + Alt + F7) there was a black screen and the
mouse pointer.
Via console I installed ubuntu-desktop which works flawlessly (Classic mode). I
found out that the error was caused by activated desktop effects which are not
working because the proprietary nvidia drivers were removed during the upgrade
process. Via system settings (opened in gnome classic desktop) I deaktivated
the desktop effects. After that I could successfully use KDE again.
My System: Dell Latitude D820 with Nvidia graphic chip
** Affects: kde-baseapps (Ubuntu)
Importance: Undecided
Status: Incomplete
** Tags: kubuntu natty nvidia upgrade
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kubuntu upgrade 10.10 -> 11.04 ended up in unusable state
https://bugs.launchpad.net/bugs/772019
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which is subscribed to kde-baseapps in Ubuntu.
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