Black screen blinking cursor after driver 515 install on Ubuntu 22.04

I get Black screen blinking cursor after driver install on my lenovo thinkstation with NVIDIA Quadro P620. The computer is running Ubuntu 22.04 and was recently upgraded from 20.04 where driver version 470 worked properly. I have tried multiple versions

sudo apt install nvidia-driver-515

but also with 510 and 470. I also tried installing from the .run file, but gave up after errors about “running an X server”. I saw other similar posts like by Abelramos92e but I was not able to find a solution.
nvidia-bug-report.log.gz (115.9 KB)

You’re booting a kernel without headers installed. Please either switch to kernel 5.15.0-47 in grub menu or install the headers for the running kernel
sudo apt install linux-headers-$(uname -r)

Thanks, that eventually worked. There was no available header for 5.14.0-1051-oem for 22.04 so I installed kernel 5.15.0-47-generic and was able to run your command. I purged and reinstalled nvidia, and it got to a login screen, but the mouse and keyboard did not work. I then ran

sudo apt-get install xserver-xorg-input-all

and the system seems to be working now.

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