I have a Dell Precision T7500 running redhat 6 64bit. It has a quadro NVS 420 card. I have installed the latest drivers from Nvidia - 319.32. The largest resolution I can select for the U2713HM is 1920x1080. It is connected with a Dual-Link D-DVI connector off of a Dell Amphenol nVidia VGDCI to Quad DVI Adapter Cable - F908M. Everything says it should be able to run 2560x1440 but it is not available as an option.
Thank you
