Hello Dell Support,
I have a problem with Displayport 1.2 and my monitor:
I just bought two Ultrasharp u2415 monitors. I connect each with the supplied cable to a Radeon HD 6970 (two mini Displayports), no daisy chain. The graphic card and the monitors support Displayport 1.2. I installed the newest Dell drivers, graphic card drivers and the dell monitor manager.
When i plug the monitor in (without DP1.2 activated) the refresh rate is only 60 hz for the resolution of 1980x1200. DP1.2 is needed to for a refresh rate of 75 hz @ 1980x1200 right?
The Problem is, when I activate Displayport 1.2 on my monitor’s options the screen turns black. I want the full 75 hz @ 1980x1200 resolution for the dual display. What can I do to fix this problem?
Turning off DP1.2, as suggested in the Forum, does not help me with the refresh rate.
I am looking forward to your help.
kind regards,
Klopf