Same here, X is freezing a couple of times a day, mouse still movable, no clicks/keyboard input accepted, but can switch login on a console via e.g. Alt+F1.
Running on an Lenovo R60 with an ATI Radeon X1400, updated 12.04 from 11.10; system was perfectly stable before the dist-upgrade. Happy to provide further input if needed, can't find anything suspicious in dmesg, syslogs or xsession errors etc. -- 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/993187 Title: ubuntu 12.04 64bit completely freezes frequently To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/993187/+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