bumping this one.
I replaced my LCD-monitor with my projector (panasonic pt-ae500) and got picture on it so I guess the lcd is too old or something.
But another wierd problem appeard with the projector connected. When I start up gdm I have correct pixel-mapped reolution to the projector but after a couple of minutes the signal to the projector is "cut" and I have to restart X to get it back.
Another strange thing is that if I skip gdm and instead start X manually (startx) I get no signal to the projector at all, with no changes made to xorg.conf.
Can this be something with the intel-driver?