I see. No intel built in card?
AMD and Nvidia. That is quite a combo...
The normal solutions of "nomodeset" would do little good as without an intel Graphics card to fall back to, it must have the Nvidia Drivers already in place at init.
What you may need to do is boot, then drop directly to the Recovery menu and from there to Enable Networking. Once you enable networking, bump back up to the Recovery Menu and arrow key down to drop to prompt.
From the Prompt terminal, locate the file 20-intel.conf or similar that should b…