Did an update, and watched as the newest nVidia driver killed my desktop

So Friday night, I went and updated the system with the update dialog boxes. Now, I’m pretty new to EndeavourOS, but I know just enough to stumble around. I got the basic syntax of the terminal down, such as yay and sudo pacman -Syu, but I still need a bit of hand-holding for the more intermediate stuff, such as swapping out video drivers when things go wrong. Would you chaps be so kind as to let me know of the command I need to type in to terminal to remove the problematic driver and load a certain known-good driver, so I can get the full desktop back? Providing details as to how the commands work would be most helpful in my learning of how to do my own maintenance. I’m also learning how these boards work - I’m used to PHPBB, so that will take me a bit

Define kill. Is it a black screen? What gpu do you have?

You can use the program downgrade to downgrade the Nvidia drivers. Run pacman -Qs nvidia to see which drivers you are using and then run sudo downgrade <driver-package> and pick the previous working one from the list.

Kill is defined as: display does not initialize the graphical aspect of the screen (terminal character output is visible during bootup) with a text output of “ERROR: GPU-0: Error while waiting for GPU progress”

can you post the journal for the last boot?

Ctrl+Alt+F4
and login. first and from tehre resolve the issue.
We need some better info to assist you like at least something like:
inxi -Gaz if you have network: inxi -Gaz | eos-sendlog and give the short url to the pastebin.. if not you could do a pic with smartphone too..

Looks clear enough, but about that variable you showed me. What’s the exact syntax I need to use?

In my case it would be sudo downgrade nvidia-open-dkms, it could also be nvidia, or nvidia-dkms, it depends on what the first command shows. If you post the output of that, I can be more precise…

Sorry for the delay in responding, I’ve been very busy at work with a lot of overtime.

As I was bringing the system up from cold, it exhibited what I could only describe as a serendipitous event - the desktop restored itself to full working order. Perhaps with some background activity?

I’ll still keep this topic bookmarked in the event I need to execute the commands listed.