A similiar thing is happening to me on my Dell e6400 running 8.10. It only seems to happen when I'm running a dual head display. When I'm at home, with only the laptop display (i.e. now) I can't make it happen.
I find occasionally (mostly when running a virtualbox vm and clicking the hot key to leave the vm and when running vnc to a remote machine and then returning to my host with the mouse. When it happens, I can move the mouse, but clicking it does nothing. I can alt-tab to go between windows, and can use the keyboard. I haven't tried the control-alt-f1 - will do so tomorrow. When it happens, I do a control-alt-backspace and log in again (most annoying!). I am running with a Nvidia Quadro NVS 160M. -- Losing keyboard and mouse control when changing screen brightness with fn + arrow under intrepid https://bugs.launchpad.net/bugs/285323 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