How to Add Nvidia Repository in Linux Mint 19

Setting Up

2. 2. Setting Up NVIDIA Repository

   Then Add NVIDIA PPA Repository.

   Especially relevant: currently this PPA Repo in many cases may not be relevant, so first try directly to Search and Install the Driver.

   For the latest Dev Releases:

   sudo add-apt-repository ppa:graphics-drivers/ppa

   For further Insight see the Official Documentation.

   If Got “User is Not in Sudoers file” then see: How to Enable sudo

   Last, Refresh Apt Repositories.

   sudo apt update

   Authenticate with the User Admin Pass.
   If Got “User is Not in Sudoers file” then see: How to Enable sudo.