I am using Karmic Koala (Ubuntu 9.10) to my surprise, every so often, the screen freezes completely in that it does not respond, even though I can move the mouse about ... nothing responds when I click on it. I cant do anything until I reboot the machine (this [forced reboots] is the reason why I am moving away from Windows - to find this happening on my beloved Linux, is more painful than I care to admit)
I have not been able to reproduce this sufficiently enough - so it seems to be probably an erratic bug. Most of the time when the screen freeze happens, I am running a combination of one or more of these (Firefox 3.5.7, gEdit, Console, Qt Creator [1.2.1])
Is this a known bug, has someone come accross this before, whats the fix?