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Second monitor stuck in 1080p

Joined
Aug 9, 2015
Messages
23
Motherboard
Asus Maximus VII Impact Z97
CPU
i7 4790K
Graphics
GTX 980 Ti
I have two Dell P2715Q 27" Ultra HD 4K Monitors but unfortunately only the first connected monitor to the GPU via DisplayPort with display the full 3840x2160 resolution the other one is stuck on 1920x1080.

If I unplug the first monitor and leave only the second one connected (in the same port it was previously connected to while both were connected) it displays in 3820x2160.


412105
 
Last edited:
Joined
Aug 9, 2015
Messages
23
Motherboard
Asus Maximus VII Impact Z97
CPU
i7 4790K
Graphics
GTX 980 Ti
Maybe I need to modify my EDID?

Can someone give me a ELI5 regarding what the purpose of EDID is?
 
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