Step-by-step – Driver Nvidia Installation in Linux Mint 20

Installing

2. 2. Setting Up NVIDIA Driver Repository

   How to Install NVIDIA Linux Mint Repository

   Linux Mint NVIDIA PPA Setup

   Linux Mint NVIDIA Repo Setup

3. 3. Installing NVIDIA Driver

   Then to Check for the available NVIDIA Driver
   Simply play:

   sudo apt update && apt search nvidia-driver

   Find the Right NVIDIA Driver in your Graphics Card

   NVIDIA Driver LookUp

   Searching for NVIDIA Driver

   Take Note of the Driver Release.

   Finally, to Install the Right NVIDIA Linux Mint Driver
   For Instance to Install the currently Latest one:

   sudo apt install nvidia-driver-555 nvidia-settings

   And in case of Issue try instead with the more powerful aptitude Package Installer.
   So first, to Install Aptitude run:

   sudo apt install aptitude

   And next try the Setup again playing:

   sudo aptitude install nvidia-driver-555 nvidia-settings

   Last, to Load your barely New Graphics Driver Reboot with:

   sudo reboot