BUG: max resolution stuck at 1280x1080 Windows 10

Hello,

i have weird bug. So i don't need to rewrite all info:
https://www.nvidia.com/en-us/geforce/for...indows-10/

TLR i reinstalled drivers using ddu and still! Restarted pc/ turned off. Used another hdmi, reconnected etc. 1920x1080 120hz monitor eizo fg2421 stuck at 1280x1024 75hz mode!

I am trying create custom resolution using cru, as creating custom resolution via nvidia control panel failed: HDMI no signal! Same using cru!

Weird is i can go to 1920x1080p Ultra HD, HD, SD - 60hz only! But pc resolution stuck at 1280x1024. I used on this monitor PC resolution 1920x1080 120hz in past so...

Problem is to create new resolution, i need also create extension blocks. As i have in existing extension blocks only 1920x1080 60hz. For TV i think.

Problem is i don't know what i should copy from existing extension block and what to change! I read manual for cru at forums, but there is not enough information and nothing how to create custom extension block!

I included picture of extension block, don't know if this is enough. How to create it for 1920x1080 120hz.

THANKS MUCH!!!

EDIT: i already checked manufacturers website for supported resolution, even i didn't think it would case. Now i bumped into manual and it says supported resolution in HDMI 1920x1080 60hz max. Lmao. https://www.eizoglobal.com/support/db/fi...1B1-EN.pdf
Which is not problem tho for me. As i won't be using this monitor for gaming. But how do i get PC resolution 1920x1080 60hz. Ultra HD Sd, cause tons of lag.

And i can't connect my monitor using another output.

THANKS!

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