Philipp: yes, see comment 2: "Please attach the files in /var/log/dist-upgrade/ to this bugreport."
that should confirm that the problem was the same. clickwir had a foreign version of nvidia-glx installed: dpkg - warning: downgrading nvidia-glx from 1:100.14.011 to 1:96.43.05+2.6.24.12-16.34. -- package xserver-xorg-core 2:1.3.0.0.dfsg-12ubuntu8.3 [modified: usr/lib/xorg/modules/extensions/libglx.so] failed to install/upgrade: https://bugs.launchpad.net/bugs/219321 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