NVIDIA EDID Clone and Force Linux
I had a long VGA cable (not shielded) and it was not pulling EDID data from the monitor. Instead of writing a xorg.conf I just wanted to clone the EDID data and force the nvidia driver to use it. If you go into the NVIDIA X Server Settings Util you should be able to aquire the EDID and save it by selecting the monitor and clicking the Aquire EDID data button. I did not have luck with the read-edid stuff but I am sure with a bit of messing around I would have gotten some command line util to work.
Now that I have my edid.bin file I created a dir /etc/X11/edid and renamed my file to dell_2007FPb_edid.bin and create a file called custom_edid_VGA-0.conf under /etc/X11/xorg.conf.d with this:
Section "Device"
Identifier "Device0"
Driver "nvidia"
VendorName "NVIDIA Corporation"
Option "CustomEDID" "VGA-0:/etc/X11/edid/dell_2007FPb_edid.bin"
EndSection