I did some more debugging. The new driver seems to detect the monitor resolution in a different way (or at all) compared to the 8xxx series. It claims that the maximum mode of my TFT is 1280x960 and the 'best fit' mode is 1024x768. Thus with manually adding the 1280x960 mode, I can get at least this resolution, which is much better than 1024x768, but still leaves me with two big black bars.
Detecting monitor resolution through the DVI cable does not seem to work for me. Ubuntu's xorg detection scripts cannot figure it out at all, they are only right when I use the VGA cable. There does not seem to be a way of overriding the detected monitor resolution any more. -- nvidia driver 9xxx rejects 1280x1024 mode https://launchpad.net/bugs/72991 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs