Step-by-step – Debian Bullseye Realtek RTL8168 Driver Installation

GNU/Linux Debian Bullseye Realtek RTL8168 Driver Setup Guide

Hi! The Tutorial shows you Step-by-Step How to Install Realtek RTL8168 Gigabyte Ethernet Controller Driver in Debian Bullseye 11.x GNU/Linux.

And the r8168-dkms Debian Package contains the Binary Firmware for Realtek Ethernet, Wifi and Bluetooth Adapters Supported by Various Drivers.

Especially relevant: this Realtek RTL8168 Driver Debian Bullseye Dkms Setup should be working also after an Apt Kernel Upgrade also because is part of the Default Repo.

Finally, this Realtek Driver Debian Setup should support All the following PCI Express 10/100/1000M Gigabit Ethernet Adapters:

• RTL8168B/8111B
• RTL8168C/8111C
• RTL8168CP/8111CP
• RTL8168D/8111D
• RTL8168DP/8111DP
• RTL8168E/8111E
• RTL8111G/8111H
• RTL8411/8411B

And again also the PCI Express 10/100M Fast Ethernet Interfaces:

• RTL8101E
• RTL8102E
• RTL8103E
• RTL8105E
• RTL8106E
• RTL8107E
• RTL8401
• RTL8402

Please be aware of how this Driver is Not supporting all the Linux Kernels range, so in case of issue consult the available Online Documentation.

So as a possible Solution, then you may also see: How to Install New Kernel Guide.

Again, in case of Issue for preventing any possible Driver loading Interference you should also take into account: How to Blacklist Kernel Modules.

1. 1. Launching Shell Emulator

   Open a Terminal window
   (Press “Enter” to Execute Commands).

   
   In case first see: Terminal QuickStart Guide.
   

2. 2. Enabling Non-free Repo

   How to Add Debian Non Free Repo Preserving System

   Step by step Repo Setup Guide

   Link to Step by step Debian Non Free Repository Setup Guide

3. 3. Installing RTL8168 Driver

   Then to Install Realtek RTL8168 Driver on Debian
   Simply run:

   sudo apt install r8168-dkms

   And then Reboot with:

   sudo reboot

   In case of Issue use always “apt remove” to delete it and then Reboot.