Custom Resolution Utility (CRU)

[ToastyX]

(03-04-2023 10:37 PM)Parallellines Wrote:  I have a problem, in short: making any edits using CRU changes the Windows recommended resolution and breaks 21:9 VSR.

I own a 29WK600 and I've been using CRU since forever to extend its Freesync range and delete some useless resolutions that cause trouble in certain games, and enabling VSR always added 5120x2160 & 3440x1440 to the list of available resolutions.

Now I upgraded my graphics card from an RX 580 to a 5700 XT, and VSR doesn't add these resolutions anymore, only 16:9 ones up to 3840x2160 if I use the same EDID as before. Meanwhile Windows shows 1920x1080 as the recommended resolution instead of 2560x1080. (using a clean Windows install after the upgrade, by the way)

So I reset all settings and VSR works again, and the Windows recommended resolution is 2560x1080 as it should be. I noticed that if I make ANY edits at all using CRU the recommended resolution changes to 1920x1080 and 21:9 VSR doesn't work (yes I tried using SRE too but it didn't add the resolutions back either).

I did manage to hex edit the EDID directly in the registry instead of using CRU and the native resolution was unchanged, so I was wondering which bytes determine the resolution recommended by Windows? I read that the topmost "detailed" resolution is used as the recommended one, but it's already 2560x1080 there, yet Windows insists on using the wrong one.

The first detailed resolution is supposed to be the recommended resolution. Export a file with the original EDID, and another file with the changes you wanted to make, and post the files here. What exactly did you change in the registry?