90-nvidia.conf incompatible with HDMI external monitor

[generix]

That config is broken, don’t use it.
Which distro are you using, the logs don’t tell? What are you trying to achieve?
Per default, the nvidia gpu is in offload mode
https://forums.developer.nvidia.com/t/ubuntu-20-04-does-not-use-nvidia-gpu/243803/2?u=generix