Custom Resolution Utility (CRU)

[AntiGod]

[EDIT] - I was just able to successfully remove the DCI 4K resolution by first switching my display resolution to 1080p/60Hz before resetting the graphics driver. Probably just switching to 3840p/60Hz would have been sufficient. I don't think I had to do this previously.

I have an LG C1 and was previous connecting my 3080GPU directly to the TV. I had no issues removing 4096 resolutions or doing any other common task with CRU.

Recently I am running my PC through an Denon X3800H 40gbps AVR. Now that CRU recognizes the Denon AVR as my "display" and doesn't directly see the LG C1 EDID at all, I can not seem to do this without losing signal completely until I reset back to default.

I can't figure out what I need to do to successfully remove the 4096 resolutions. I am forced to use Display scaling now rather than GPU scaling, because my Windows Active resolution is stuck at 4096x2160 even when the Display Resolution is set to 3840x2160. This results in 3840 Display res being letterboxed like 4096 should be, and 4096 res fills the screen (obviously not correctly scaled). This is with GPU scaling/No scaling.

Display scaling/No scaling scales properly, but not GPU. It's hard to troubleshoot this because besides the additional variables in the chain, so few people have HDMI 2.1 receivers with PCs attached I can't find any info about is. I need to either force Windows 11 to set the correct Active resolution or remove 4096 as an option altogether but am coming up empty.