OS:Ubuntu 20.04LTS Windows10 dual boot
Error with nvidia-smi command after apt installation of nvidia driver.
$ nvidia-smi
Unable to determine the device handle for GPU 0000:0B:00.0: Not Found
$ dmesg |grep NVRM
[ 3.065144] NVRM: loading NVIDIA UNIX Open Kernel Module for x86_64 520.56.06 Release Build (dvs-builder@U16-T12-10-2) Thu Oct 6 21:33:54 UTC 2022
[ 5.299612] NVRM: Open nvidia.ko is only ready for use on Data Center GPUs.
[ 5.299614] NVRM: To force use of Open nvidia.ko on other GPUs, see the
[ 5.299615] NVRM: 'OpenRmEnableUnsupportedGpus' kernel module parameter described
[ 5.299616] NVRM: in the README.
[ 5.692026] NVRM: GPU 0000:0b:00.0: RmInitAdapter failed! (0x63:0x0:1900)
[ 5.692585] NVRM: GPU 0000:0b:00.0: rm_init_adapter failed, device minor number 0
[ 19.458670] NVRM: GPU 0000:0b:00.0: RmInitAdapter failed! (0x63:0x0:1900)
[ 19.459831] NVRM: GPU 0000:0b:00.0: rm_init_adapter failed, device minor number 0
...
$ dpkg -l | grep nvidia-driver
ii nvidia-driver-520-open 520.56.06-0ubuntu0.20.04.1 amd64 NVIDIA driver (open kernel) metapackage
I have tried reboot, secure boot and driver reinstallation.
As per several answers given on the Nvidia developers forum, try installing the non-open version of the drivers.
I also recommend holding (with apt) the version of the drivers to avoid future mismatches.