Upgrading to Precise seems to have fixed the problem for me (nvidia- current 295.40-0ubuntu1, lightdm 1.2.1-0ubuntu1).
-- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to nvidia-graphics-drivers in Ubuntu. https://bugs.launchpad.net/bugs/873495 Title: LightDM fails to start after nvidia-current or nvidia-current-updates are installed (upstart job issue) To manage notifications about this bug go to: https://bugs.launchpad.net/lightdm/+bug/873495/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp