https://unix.stackexchange.com/questions/440840/how-to-unload-kernel-module-nvidia-drm

https://arabelatso.github.io/2020/01/08/Install%20CUDA%20Toolkit%2010.2%20on%20Ubuntu%2018.04.3/

 

1. 

After change to a text console (pressing Ctrl+Alt+F2) and logging in as root, use the following command to disable the graphical target, which is what keeps the display manager running:

# systemctl isolate multi-user.target

At this point, I'd expect you'd be able to unload the Nvidia drivers using modprobe -r (or rmmod directly):

# modprobe -r nvidia-drm

 

2. run the .run file

3. reboot