Nvidia driver is broken after update

I updated my system last night, it seemed like that this update removed some part of nvidia driver. After i rebooted, the nvidia driver was not working.

nvidia-smi returns:

NVIDIA-SMI has failed because it couldn’t communicate with the NVIDIA driver

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I found the problem. My kernel is 5.13. I update it to 5.14 and its working now

5.14 is EOL too …

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Better would be to install 5.15. It’s a long-term-support kernel. 5.14 is end-of-life and will soon be dropped.

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