"No device Found" while using nvidia-smi

I am facing problem with nvidia driver installation with Ubuntu 20.04.6. I have Geforce RTX 2080Ti. After installation of 530 open kernal driver using recommanded option, nvidia-smi shows no devices found. Please if some one can help with this issue. I am also uploading bug report.
nvidia-bug-report.log.gz (100.2 KB)

Hello @axay.patel2003, welcome to the NVIDIA developer forums!

Please check out in your Log:

[    4.464253] NVRM: Open nvidia.ko is only ready for use on Data Center GPUs.
[    4.464260] NVRM: To force use of Open nvidia.ko on other GPUs, see the
[    4.464262] NVRM: 'OpenRmEnableUnsupportedGpus' kernel module parameter described
[    4.464264] NVRM: in the README.

I highly recommend using the standard drivers for consumer GPUs, unless you really depend on being able to modify and recompile the NVIDIA kernel module.