Highest refresh rate missing on lower resolutions (1080p at 165hz)

Graphics / Linux Linux
1

Hi guys, I’m having the exact same problems as described in the following forum post (also popos, most recent nvidia drivers, GTX 1660super):

However, I followed the instructions and I still couldn’t get 1080p@165hz to work (my monitor maxes out at 2k@165hz and 1080p@165hz works on Windows11)

I added the following to my /etc/X11/xorg.conf.d/10-monitor.conf:

Section "Screen"
    Identifier     "Screen0"
    Device         "Device0"
    Monitor        "Monitor0"
    Option         "ModeValidation" "AllowNonEdidModes,NoEdidMaxPClkCheck,NoMaxPClkCheck"
EndSection

Rebooted, and got more options available on nvidia-settings, like 1920x1200 scaled. However, still no 1080p@165hz available.

Any ideas? My monitor is KTC H27T22 if that matters. Thank you!

2

Some more stuff:

My original monitor edid (I’m using a custom one so this one isn’t applied, but probably useful):
monitor.edid .txt (256 Bytes)
(btw it’s not actually txt it’s edid but forum doesn’t let me upload edid directly, just remove extension)

Nvidia bug report log: nvidia-bug-report.log.gz (629.9 KB)