After that I was unable to get to the login screen when nvidia prime profile was enabled (enabling intel profile works ok). While playing around with OpenCL, Vulkan and other GPU-related stuff, I upgraded to nvidia-driver-440 (I did also try to install drivers from nvidia site as well). I have Ubuntu 18.04 with a working nvidia-driver-415. It might not be the exact same problem, but the title matches and people searching for the issue I had might land here. I stumbled across this question when trying to solve my 'Ubuntu will not boot normally after nvidia driver install' problem. Continue reading to see if you had a similar issue.

Make sure that the latest NVIDIA driver is installed and running.TLDR: deleting /etc/X11/nf solved my boot issue. NVIDIA-SMI has failed because it couldn't communicate with the NVIDIA driver.

Blacklisting nouveau in nf with: blacklist nouveau options nouveau modeset=0Ġ0:02.0 VGA compatible controller: Intel Corporation Device 3e9b (prog-if 00 )Ġ1:00.0 VGA compatible controller: NVIDIA Corporation GP106M (rev a1) (prog-if 00 ).

Clean installation of multiple driver versions.

I have tried installing from both command line and “Software & update” app. This week I noticed that nvidia drivers weren’t loaded, so I reinstalled them multiple times, with multiple different version: (390.87, 410.78, 415.13). Some time ago I installed nvidia drivers and it worked normally. I have dual boot with windows and secure boot disabled. My notebook is using both intel integrated and external GPU. I have problems with Nvidia drivers, on ubuntu 18.10.

Nvidia graphics driver install fail log