Custom Resolution Utility (CRU)

[flep]

Hello.

I have a Samsung Q70T tv, which is a 4k 120hz native TV via HDMI 2.1 with VRR, which supports Gsync compatible via NVCP.

While I do have a good HDMI 2.1 cable, my GPU is a RTX 2080, which sadly doesn't have HDMI 2.1 output, only HDMI 2.0

I'm trying to setup the TV as a UltraWide resolution, and while I can get native 3440x1440 @ 60hz, 3440x1440 @ 70hz with custom NVCP resolution and even 3840x1607 (which is nice as I then can disable scaling) @ 70Hz via NVCP, I can't figured out how to get 100mhz, which from my research should be supported by HDMI 2.0 at 3840 or 3440 resolutions

I did a few tries with CRU via Detailed Resolutions testing different modes for timing, none worked with 100hz, not even 75hz I can get to work.

If anyone has any experience with something similar and could share some ideas / configs I need to try, I would appreciate.

Thanks!