How to Install NVIDIA Rtx 3080 Ti Driver on Ubuntu 20.04 – Step-by-step

Installing

3. 3. Installing RTX 3080 Ti Driver

   Then Check for the Available NVIDIA Driver
   Simply run:

   sudo apt search nvidia-driver*

   Take Note of the Latest 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!
   And when in doubt then see also How to Check NVIDIA Graphics Card Model Supported Drivers.
   Next to Install the latest Driver, for Instance do:

   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 now