Try this (ASSUMING you are running the proprietary NVIDIA driver here, btw)
wings@blackberry:/etc/modprobe.d$ sudo cat blacklist-nvidia-nouveau.conf
blacklist nouveau
blacklist amdgpu
options nouveau modeset=0
wings@blackberry:/etc/modprobe.d$ sudo cat nvidia_drm.conf
options nvidia_drm...
I'm tearing my hair out because I just ran into this same issue I think.
I've got the following specs:
* Ryzen 7800X3D
* NVIDIA RTX 3070 Ti
* 165Hz ultrawide 3440x1440 monitor.
I've tried connecting an HDMI 4K monitor (it's all I have other than this one :D) and no dice there either...