NVIDIA-SMI has failed because it couldn't communicate with the NVIDIA driver. Dell laptop Ubuntu20

I am trying to install Nvidia driver on Dell 5530, Ubuntu20. But I got

nvidia-smi
NVIDIA-SMI has failed because it couldn't communicate with the NVIDIA driver. Make sure that the latest NVIDIA driver is installed and running.

Here is the log generated by nvidia-bug-report.sh
nvidia-bug-report.log.gz (166.8 KB)

tried re-install driver from Additional Software but it does not work.

Tried on Ubuntu 22 but still doesn’t work.
The GPU is GP107GLM

Anyone has idea?

if it is a laptop, probably you are usìng the discrete intel video card onstead of Nvidia one.
My old laptop uses bumblebee when i need to use the nvidia video card.
I did a web search there are plenty of guide how to setuo an hybrid laptop.

Looks like you have secure boot enabled. Please either disable it in bios or switch to a signed nvidia driver.