Installing
2. Enabling Extras Repo
How to Add Debian Extras Repos Preserving System Stability
Follow instructions to Enable Main, Contrib and Non Free Repo.
3. Installing
Then to Install RTX 2060 SUPER Driver on Debian
Simply run:sudo apt -t testing install nvidia-driver
Or:
sudo apt -t unstable install nvidia-driver
If Got “User is Not in Sudoers file” then see: How to Enable sudo
And Possibly to Configure the X Server after Setup run:nvidia-xconfig