Custom Resolution Utility (CRU)

[ToastyX]

(01-17-2024 06:26 PM)Goddi8 Wrote:  Hi there, as my kids got an xbox series S as christmas present I handed over my "old" HP 27xq monitor to them.
I had two of them running on my gaming PC and they did run with WQHD (2.560 x 1.440) and 120H (connected via HDMI)

Little surprise as the XBOX (HDMI as well) doesn't support running 1440dpi and 120Hz (1080dpi works). I learned this is due to HP not sticking to the VESA standard and reporting 119,xxHz instead of 120Hz to the xbox.

So i tried changing the EDID information with CUR (changed the 119Hz to 120Hz, removed TV resolutions and added second and flashed the HP firmware with the new bin file.

You have that backwards. I can't find any information about what specific timing the Xbox requires, but assuming VESA CVT-RB, that would be "Automatic PC" or "CVT-RB" with the pixel clock manually rounded down to the nearest 0.25 MHz, so 497.75 MHz, which is around 119.997 Hz. You have 2560x1440 @ 120 Hz in there twice, neither of which match that timing. What are you using to flash the monitor?