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

Gaming and Visualization Technologies General Topics and Other SDKs GPU - Hardware
2

Hi there @user155999 and welcome to the NVIDIA developer forums.

I would like to point you to this post: “If you have a problem, PLEASE read this first” in the Linux forums.

Please share your nvidia-bug-report.log.gz with us and we will see what might be the issue.

Good starting points to fixing this are:

  • Purge all NVIDIA drivers and reinstall from scratch, using the Software Manager of Ubuntu. This is the recommended way
  • Check if you have a mismatch in secure boot. If you have secure boot enabled, you need to install and authenticate a certified driver through the Ubuntu installer. Otherwise you need to disable secure boot
  • Check if you have nouveau drivers installed. If yes, black-list them.

Thanks.