I have been supporting high end graphics on Unix and Linux since 2005...
Summarized: I would recommend installing it from the Ubuntu Repo's. If a little gutsy, install the graphics team PPA. That is still more dependable, ad less long time work than installing straight from NVidia.
I didn't always do that. I am advanced in skills, and just went ahead. It takes a lot of work to keep up on what will work, and to keep it maintained. Next, the Ubuntu Dev's do tweak the NVidia driver to work well with Ubuntu, and try to keep it working.
There are still sometimes challenges, but that is just a part of life of owning an NVidia GPU and running Linux.
Remember a few things:
Modify your Grub2 Boot menu to "always show". Even if the show time is only 1-2 seconds. That will help you, if you have an update and it, all of a sudden, on the next boot, goes to a black-screen (graphics-wise).
Remember the boot-parameter "nomodeset". That will disable NVidia drivers from loading and letting the OpenSource Nouveau driver load, so that you can reinstall your NVidia drivers.
If you have to reinstall an NVidia driver (there are many ways to do that in Ubuntu), I always tell people that I (and NVidia) recommend that yoiu start by removing all traces of the old driver...
Code:
sudo apt remove --purge nvivia*
There are 3 ways to install an Nvidia driver from the repo's:
1) Use the Alternative Drivers tab of the Software & Updates Application.
2) Use ubuntu-drivers:
Code:
ubuntu-drivers list
sudo ubuntu-drivers install recommended
3) Install directly from commandline
Code:
sudo apt install nvidia-driver-550
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