Ubuntu20.04 NVIDIA-SMI has failed because it couldn’t communicate with the NVIDIA driver

Graphics / Linux Linux
1

Hi,
My laptop is Lenovo P71 with os Ubuntu20.04.
I have a problem with the Nvidia driver.
When I run Nvidia-smi and I get the message:

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

I did the following command but still have the same error

sudo apt-get purge ‘nvidia-.*’
sudo apt -f install
sudo apt autoremove
sudo apt install nvidia-driver-460
sudo dkms install -m nvidia -v 460.73.01
reboot

the attachment is the nvidia-bug-report
nvidia-bug-report.log.gz (147.1 KB)

2

Please disable secure boot in bios.

3

Secure boot is required for UEFI and dual boot with Windows 10. So is there a fix for this issue?
I even tried installing 430 from recovery mode and generating a new key, still fails.

4

Then you will have to enable module signing, either using update-secureboot-policy or by reinstalling Ubuntu and selecting to “Install Third-Party Software” on install.