I seem to have a similar problem to this guy.
Is the only option to remove the nvidia drivers?
If so is the correct procedure to boot into recovery mode, select root and then delete the drivers in the terminal with the following commands?
sudo apt-get purge --auto-remove libcud*
sudo apt-get purge --auto-remove cuda*
sudo apt-get purge --auto-remove nvidia*
I can't even apply the above fix because I also have the problem in the link below where my Ubuntu is stuck in a login loop when trying to enter my desktop. When I login, the screen gets black and soon after that the login screen comes back.
Unfortunately the solutions in the link rely on your knowing your login but I don't (only the password).
In theory it seems that you can recover your login by going into recovery mode, but my keyboard and mouse won't work with recovery GUI!
It does seem to be catch 22!
Am I right in thinking at this stage the only option is to delete and reinstall ubuntu?
The keyboard and mouse are usb and they work in the regular linux login screen (it's just that that login process has the looping bug).
Not only is the recovery mode GUI completely unresponsive after a few minutes it start's displaying a bunch of random commands all over the screen see image below)!