Dell display resolution stuck at 1024x768, but only when it's the only display

[Denwengod]

I updated with the latest Windows update, and not sure if it's related or not, but now my Dell 27" monitor is stuck on 1024x768. The other resolutions are not grayed out, i can pick one and get the "keep current selection" popup, but nothing changes.The weird thing is that if i Duplicate or Extend the montitors from my laptop screen, everything works fine and I get 4k resolution. But not for the monitor alone.What should I look at?

Continue reading...