For context: my previous apt-get update & apt-get upgrade was on 16 August; all went well. I have enabled the Kubuntu Updates, Kubuntu Backports, and Kubuntu Experimental PPAs since I first built my system weeks ago.
Today, 19 August, I ran update & upgrade. Upgrade installed a number of packages, also indicated a number were being held back. So then I followed with a dist-upgrade that pulled down several more. I neglected to notice that the dist-upgrade also wanted to remove a few packages. Didn't realize the problem until after rebooting. Right before KDM appeared, a white box occupying the upper quarter of my monitor flashed briefly. Once the KDM dialog appeared, logging in failed -- the screen would flash a few times and then return to KDM.
Some Googling on various errors in /var/log/kdm.log and ~/.xsession-errors didn't show anything too relevant. So finally I checked /var/log/apt/history.log to find out what got removed. For some strange reason, the dist-upgrade wanted to remove kde-workspace, kde-workspace-bin, and kde-window-manager. I reinstalled them and all is now fine with the world.
Today, 19 August, I ran update & upgrade. Upgrade installed a number of packages, also indicated a number were being held back. So then I followed with a dist-upgrade that pulled down several more. I neglected to notice that the dist-upgrade also wanted to remove a few packages. Didn't realize the problem until after rebooting. Right before KDM appeared, a white box occupying the upper quarter of my monitor flashed briefly. Once the KDM dialog appeared, logging in failed -- the screen would flash a few times and then return to KDM.
Some Googling on various errors in /var/log/kdm.log and ~/.xsession-errors didn't show anything too relevant. So finally I checked /var/log/apt/history.log to find out what got removed. For some strange reason, the dist-upgrade wanted to remove kde-workspace, kde-workspace-bin, and kde-window-manager. I reinstalled them and all is now fine with the world.
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