I think the problem is with Unity, not X, since some parts of desktop works and I can switch to text terminals (alt + f1). Usually when X has frozen for me only way to gain access is via ssh from another computer.
** Package changed: xorg (Ubuntu) => unity (Ubuntu) -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/955515 Title: Unity freeze To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity/+bug/955515/+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