Ok, that's easy, I can fix it with Nvidia X-Server setting preferences. Nope! It only offers a few low resolutions and that's it!
The solution? You need to add some options that tell the driver to ignore refresh rates etc and to offer you everything. You need to add the following line to your configuration file /etc/X11/xorg.conf, this is a single line, not split as it is in this post:
Option "ModeValidation" "AllowNon60HzDFPModes, NoVertRefreshCheck,
NoEdidMaxPClkCheck, NoHorizSyncCheck"
Here is my complete xorg.conf file:
Section "Screen" Identifier "Default Screen" DefaultDepth 24EndSection
Section "Module" Load "glx"EndSection
Section "Device" Identifier "Default Device" Driver "nvidia" Option "NoLogo" "True" Option "ModeValidation" "AllowNon60HzDFPModes, NoVertRefreshCheck, NoEdidMaxPClkCheck, NoHorizSyncCheck"
EndSection