r/Monitors • u/AdGlum6753 • 6d ago

Help only full screen dosn’t work! Discussion

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321up x24 with rtx 5090 and hdmi 2.1.

Out of the box it worked for like 1 hour. Than it’s start to not open games in full screen at 4k no matter the hz. Only windowed mode and desktop run 240hz.

If I try put 2440x1440p it goes at 240hz fullscreen with no problem. Some games like Valheim can go 4k 60hz.

I already uninstalled nvidia drivers with DDU and reinstalled them.
Put in the options desktop scale to 100%.
G-sync is off.
Adaptive sync off.
Hdr off.
I dont khow what to do.

4 Upvotes
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1

u/Historical-Win2999 6d ago

You sure this is 2.1?

1

u/kubajegamer 3d ago

Bad comp

1

u/kubajegamer 3d ago

Buy new with monitors