I think I may be seeing a similar bug. If I have the gnome-screensaver process running and I have g-p-m set to turn off the monitor when I close my laptop lid, when I close the lid and open it again I get the same issue you have. My bug only occurs when fglrx is installed.
-- While working screen-monitor goes blank & doesn't respond to keyboard or/and mouse https://bugs.launchpad.net/bugs/193709 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-power-manager in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs