My laptop has Intel Mobile GM965/GL960 integrated graphic controller and the screen size is 1280x800. When I plug another LCD (ThinkVision 22") the upper half of the laptop screen becomes black.
I can see: - the top panel (on both monitors) - the bottom size of the laptop screen with all windows and stuff - the mouse cursor when it goes over the upper black half of the laptop screen and everywhere on the second screen
I cannot see: - anything else (except for the mouse cursor) in the upper half of the laptop screen - anything (except for the top panel and mouse cursor) on the second screen
I used Ubuntu 10.10 before with the same hardware and the same two monitors -- everything worked fine. But now I can't use the other monitor. Tried to search for a solution -- no luck.
Some additional observations: - If I change the resolution on the other screen to lower settings, then the black part shrinks vertically (it is still there, though) - After I unplug the second monitor, some windows shift, for example those extended to a half of screen etc.
Any links or ideas are very appreciated. Thanks.