Custom Resolution Utility (CRU)

[Skyy]

First of all thanks for the great work on CRU!

I'm trying to solve a problem with CRU but I can't get it to work at all. My system is running Windows 11 and I previously used CRU to remove that 4096 resolution from my LG TV so I do know CRU works fine in general but I ran against a wall for my current setup.

My GPU is a RTX 4070 and I have one 4k 160hz monitor connected via DP @ 150% scaling and a second 1080p 60hz monitor with a DP to HDMI cable @ 100% scaling, HDMI on the monitor end. I'm trying to get the 1080p 60hz monitor to run at 4k 60hz. No matter what I do to that monitor in CRU and how many times I run restart.exe or reboot my PC the highest resolution Windows will show is 1920x1080 (Recommended) for that display.

I tried adding a 4k detailed resolution, I tried adding a 4k HDMI resolution and also a 4k TV resolution with CRU, nothing worked. Then I tried to edit the present 1080p resolution but no dice, Windows doesn't see the 4k resolution at all, can someone help me out here?





A little background on why I want to do this with CRU.

My 4k 160hz monitor disconnects from Windows as soon as I switch the source on it to something else causing everything to be moved over to my 1080p monitor. Since the resolution and scaling differs greatly all windows and programs look messed up even when the 4k monitor gets reenabled and everything moves back.

First I used the Nvidia Control Panel to add a 4k resolution to the 1080p monitor and then set it to 150% scaling also which worked liked a charm. Since both monitors now ran the same resolution and scaling everything could freely move between either and nothing gets resized or messed up. However upon enabling the Custom Resolution option in the Nvidia Control Panel my primary 4k 160hz monitor loses all G-Sync capabilities.

That's why I want to work around that and set 4k on a driver/EDID level for the 1080p monitor.

Thanks for any help in advance!