Just ran through some basic debugging with gnome--power-manager and no dice. Looking more and more like x.org's problem.
-- screen brightness adjustment causes mouse/keyboard input to stop https://bugs.launchpad.net/bugs/296902 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs