510.54-RTX3090-Ubuntu 20.04 Unable to load the ‘nvidia-drm’ kernel module

The message point to a blacklist file being installed.
Please run

sudo prime-select nvidia
  • run
grep nvidia /etc/modprobe.d/* /lib/modprobe.d/*

to find a file containing

blacklist nvidia

and remove it,
then run

sudo update-initramfs -u

and reboot. If the problem persists, please run nvidia-bug-report.sh as root and attach the resulting .gz file to your post.

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