Using the GUI, a proprietary driver for the nvidia video card was selected (not a test one).
Also, not understanding the consequences, the driver was chosen (the story is silent, but the name was something about the processor, the second option was not to use this device ) for an unknown device.
After the system rebooted, we got a screen to select a user and enter a password, but when logging in as a user or in guest mode, the system thinks for a few seconds, then both monitors go out into the black screen for a short time, and then we get a screen where we are asked to choose a user.
Is there any way to roll it back?
aptitude search nvidia | grep ^iaptitude search nvidia | grep ^i? - don Rumata