Version: (using KDE 4.4.0) OS: Linux Installed from: Ubuntu Packages After upgrade to KDE 4.4.0 (from KDE 4.3.5) in Kubuntu 9.10, screen goes blank just before kdm login screen (sometimes it is possible to see login screen for short moment). It is possible to move with mouse cursor, but it is huge. I guess screen resolution is down to something like 640x480. Attempting to switch to ttys show color patterns and system appears to be frozen. It is possible to reboot with ALT+SYSRQ+B. After discussion with others affected on Kubuntu channel we found following workarounds: - immediate restart of KDM with ALT+E, afterwards it works - switching to other tty and back to tty7 - using GDM or other login manager instead of KDM - boot to recovery console and start KDM manually Things which did not help: - reinstalling KDM, kubuntu-desktop, xorg-driver-fglrx - removing/renaming .kde folder All available updates are applied.
I also experience this bug. My video cart is an ATI radeon mobility X1600, using tradeon driver. Problems occurs with both the version in karmic and the snapshot from xorg-edgers, making it somewhat unlikely to be driver related.
This effects me too. I've go nvidia graphics on karmic.
Closing as downstream. This is caused by a change in the setup in Kubuntu. A reboot should fix it. Open a bug at http://launchpad.net/ubuntu/+source/kdebase-workspace if you still have problems.