Nvidia drivers installed in Ubuntu20, but nvidia-smi says 'no device were found'

My GPU is Nvidia GTX 3060 and system is Ubuntu version is 20.04.6 LTS.
I use the $ sudo ubuntu-drivers autoinstall to install the and $nvidia-smi says ‘No devices were found’.
I have tried to reinstall the Ubuntu system and reinstall the driver, but nothing changed.
The bug report is attached. Can anyone can help me to figure out the problem?

nvidia-bug-report.log.gz (112.6 KB)