thank you for your idea, in fact it kind of solves the problem but creates the next. It bought an adapter so that I can connect the DVI cable of my Formac display to the HDMI port on the Asus motherboard. As you suggested, the screen is properly recognized and works with the Intel drivers! Thanks for that!!!
However, there are artifacts in the dark (gray and especially black) parts of the screen. I have attached two examples. See the blue lines/dots appearing in the black part (here is a better quality version of the picture: http://www7.pic-upload.de/18.03.12/7bu7vhdhmjc.jpg ):
This is a black image scaled to fill most of the screen. The more dark parts on the screen, the worse:
This is with the latest Intel graphics driver provided by Asus for this motherboard (v 2598). I have also tried the latest driver from the Intel homepage (v 2509), and this gives a complete mess on the screen. There are about 100 times more artifacts than with the 2598 driver, and they are red instead of blue. So it seems to be driver related.
Again, with my other test screen the image is fine even with the dvi to hdmi adapter, so it is again a problem with the Formac screen.
Do you have any idea how I can fix this? I have tried to play with the "Custom Resolutions" part of the driver control panel, but I don't know what to put in the fields.
There is a new driver that has been posted recently at our downloadcenter. it is available here:
You can try with this driver and see if this issue persists. Also check with your display manufacturer to see if they have any further troubleshooting for this behavior