Okay, I learned much more. compizconfig-settings-manager was not installed. The upgrade defaulted to installing compiz, but without the necessary utilities.
So I see several bugs here: 1.) The video was basically destroyed after the upgrade. I kept getting error messages about missing drivers or non-existent drivers, and then the screen would go black, and the system was useless. It was necessary to do a modeswitch setting to even get the windowing system to work at all: (this was done by booting into the previous kernel. Hold down shift key while booting. Tapping it does not work. --------------- echo options i915 modeset=1 | sudo tee /etc/modprobe.d/i915-kms.conf sudo update-initramfs -u --------------- 2.) previous garbage caused misfonfiguration of the video system. It was necessary to purge and reinstall things. Run, as root, this script: ----------------- #!/bin/bash apt-get purge nvidia* apt-get install --reinstall xserver-xorg-video-intel libgl1-mesa-glx libgl1-mesa-dri xserver-xorg-core dpkg-reconfigure xserver-xorg update-alternatives --remove gl_conf /usr/lib/nvidia-current/ld.so.conf ----------------- 3.) Install compizconfig-settings-manager. I used dselect, and chose every compiz thing that looked relevant. I suppose apt-get would also work. 4.) Trying to change number of workspaces by right-clicking the workspace array in the lower right-hand corner and trying to change preferences produced disastrous results. I haven't tried it again now, after installing compizconfig-settings-manager. I have a working system at the moment, and am not eager to destroy it again today. Maybe next month. Have a good day. -- Window titles missing + appearance prefs crashes https://bugs.launchpad.net/bugs/559056 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs