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

Graphics / Linux Linux
27

I editted GRUB_CMDLINE_LINUX_DEFAULT in /etc/default/grub.

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash pci=realloc"

and

sudo update-grub
sudo reboot

After that, nvidia-smi worked fine.
Thank you very much!!

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