GeForce Rtx 2080 Driver Installation in Ubuntu 20.04

Installing

2. 2. Setting Up NVIDIA Driver Repo

   How to Add NVIDIA Graphics and GPU Drivers Linux Ubuntu PPA Repo

   Adding NVIDIA PPA

   GNU/Linux Ubuntu 20.04 NVIDIA PPA Setup

   Possibly now see How to Check NVIDIA Graphics Card Model Supported Drivers.

3. 3. Installing RTX 2080 Driver

   Then Check for the Available NVIDIA Driver
   Simply run:

   sudo apt search nvidia-driver*

   Take Note of the latest suitable Driver Release EG: 555.
   But before Setting it up it’s recommended you Verify what is the Drivers Range to Support your Card on: NVIDIA Driver support Website!
   Next to Install the latest Driver, for Instance do:

   sudo apt install nvidia-driver-460 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-515 nvidia-settings

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

   sudo reboot