Installing
2. Enabling Non-free Repo
How to Add Debian Non Free Repo Preserving System
Follow Instructions to Enable Debian Sid Repo.
3. Installing
Then to Install RTX 2070 SUPER Driver on Deepin Linux
Simply run:sudo apt install nvidia-driver nvidia-settings
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