GeForce GT 425M Debian Bullseye Driver Installation

Installing

2. 2. Enabling Non-free Repo

   How to Add Debian Non Free Repo Preserving System

   Step by step Guide

   Link to Step by step Debian Non Free Repository Setup Guide

3. 3. Installing NVIDIA GT 425M Driver

   Then to Install NVIDIA GT 425M Driver on Debian
   Simply run:

   sudo apt install nvidia-legacy-390xx-driver nvidia-legacy-390xx-kernel-dkms

   And Possibly then to Configure the X Server after Setup run:

   nvidia-xconfig

   Finally, to load the Driver reboot:

   sudo reboot