I searched a lot but couldn't find any solution..
When I connect my GeForce 7600GT over DVI, the Xorg.0.log tells me
(WW) NVIDIA(0): No valid modes for "1680x1050_60.00"; removing.
(WW) NVIDIA(0): No valid modes for "1680x1050_60.01"; removing.
(WW) NVIDIA(0): Unable to validate any modes; falling back to the default mode
(WW) NVIDIA(0): "nvidia-auto-select".
It's a 20' Acer LCD. With a DVI-to-VGA adapter I get it working, but not over DVI..
I tried played a lot around with some options in the device- or screen-section, but nothing worked. can anyone help?