Does it also lock up if changing the resolution using the xrandr command line utility? Also, please collect a backtrace from the crash - see http://wiki.ubuntu.com/X/Backtracing for directions.
Does it also lock up if changing the resolution using the xrandr command line utility? wiki.ubuntu. com/X/Backtraci ng for directions.
Also, please collect a backtrace from the crash - see http://