Looks like a unsupported version of the xserver. Do you have the xorg- edgers PPA in your sources.list file?
** Changed in: update-manager (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/781090 Title: Cannot upgrade to 11.4 with issue that it reports I have broken packages, but I see none in synaptic -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs