nvidia driver crash ubuntu 22

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"nvidia driver crash"
Crash in which sense? No display at all, wrong resolution, wrong colors ...?

"after a driver update"
Which update was that? Did it start automatically or did you manually initiate that update?

Your system seems to be missing the update to the newest version of the kernel (there is already 5.15.0-41 available)

Thank you for the response.

0. For more context, the problem happened in two of my systems simultaneously

Desktop : Nvidia GeForce RTX 3060 (LHR)
Laptop : Nvidia GeForce GTX 1650 (Dual GPU)

On my laptop I use extended screen.
Both dual booted with Windows 10.

1. Driver crash in the following sense:

a. System startup time increased from ~8 seconds to ~12 seconds.
b. nvidia-smi & docker-tensorflow-gpu stopped working due to "no running driver detected" error.
c. On my laptop the extended screen stopped working (not detected in settings->displays).

I assumed the above because of some defaulting to nouveau drivers?

2. The issue happened after a manual "sudo apt update && sudo apt upgrade". I tend to avoid using GUI software updater due to some other issues (sometimes "Additional Drivers" fails with empty error dialog).

3. I'm not sure how to upgrade Kernel, will it be through GUI? (full-upgrade shows nothing for me).

4. Current Resolution

Desktop : downloaded the following binary from Nvidia website & installed : NVIDIA-Linux-x86_64-515.57.run. Worked.

Laptop : The above installation failed with some error regarding running X server.
- The GPU in laptop Ubuntu is not that useful anyway for me & startup time is not that bad. So reverted completely to nouveau driver.
- This caused complete white screen on extended monitor connected through HDMI. I disabled nvidia card completely from an askubuntu answer (https://askubuntu.com/questions/757177/disable-nvidia-optimus-graphics-card).
- The extended monitor stopped working from laptop HDMI port, but USB-c port on my laptop worked.

"how to upgrade Kernel"

The commands

sudo apt update && sudo apt full-upgrade

should load all updates, including the kernel packages. Maybe you did already install the new version, but did not yet reboot.

What is the output of

apt policy linux-image-generic

I think that makes sense.

$ sudo apt policy linux-image-generic
linux-image-generic:
  Installed: (none)
  Candidate: 5.15.0.41.43
  Version table:
     5.15.0.41.43 500
        500 http://security.ubuntu.com/ubuntu jammy-security/main amd64 Packages
     5.15.0.25.27 500
        500 http://in.archive.ubuntu.com/ubuntu jammy/main amd64 Packages

Also, the current resolution works for me for the most part, so we can close this thread.

One minor question: "Additional Drivers" GUI shows nvidia 515 selected even though I installed it via binary & actual version probably differs (515.48.07ubuntu vs 515.57). Would you recommend waiting for Ubuntu recommended driver to catch up & doing "ubuntu-drivers autoinstall"? Or do you think the kernel upgrade would have solved the problem?

Thanks a lot for the support in any case though :)