Same problem since yesterday: I have an integrated (intel) and a discrete (radeon) graphic card, and it seems that the update "broke" just the integrated one. I'm running fine on the radeon one now..
Below an extract of /var/log/dpkg.log, regarding the updated packages that could be related to the problem: 2014-02-23 16:36:58 upgrade xserver-common:all 2:1.14.3-3ubuntu2 2:1.14.5-1ubuntu2~saucy1 2014-02-23 16:36:59 upgrade xserver-xephyr:amd64 2:1.14.3-3ubuntu2 2:1.14.5-1ubuntu2~saucy1 2014-02-23 16:37:00 upgrade xserver-xorg-core:amd64 2:1.14.3-3ubuntu2 2:1.14.5-1ubuntu2~saucy1 2014-02-23 16:37:01 upgrade xserver-xorg-glamoregl:amd64 0.5.1-0ubuntu4 0.5.1-0ubuntu4.2 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1244989 Title: LightDM won't load: Stopping startpar bridge for notification of upstart job start/stop To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/1244989/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
