rtl8814AU Debian Bullseye Driver Installation – Step-by-step

GNU/Linux Debian Bullseye Realtek rtl8814AU Wifi Driver Setup – Step-by-step Guide

Hi! The Tutorial shows you Step-by-Step How to Install Realtek rtl8814AU WiFi Driver in Debian Bullseye 11.x GNU/Linux.

And this Realtek rtl8814AU Driver Debian Bullseye Setup should be working also after a Kernel Upgrade with the Dkms integration.

Moreover, from the Realtek Support Driver Website comes out that it may be working for all the following Chipsets:

• RTL8192EU
• RTL8811AU
• RTL8811CU
• RTL8812AU
• RTL8812BU
• RTL8814AU
• RTL8821AU

Especially relevant: this setup is bound to a limited Kernel Range, for more insight see directly the Developers Docs.

Finally, in case the Interface do Not work after a successful Driver setup then you may see instructions about to Update Realtek rtl8814AU Linux Firmware.

1. 1. Launching Shell Emulator

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

   
   And update the Apt Sources:

   sudo apt update

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

2. 2. Installing Dependencies

   Then to Install Required Packages
   First, possibly Upgrade your System with:

   sudo apt update && sudo apt upgrade

   In this case then Reboot it using:

   sudo reboot

   Again run:

   sudo apt install build-essential linux-headers-$(uname -r) dkms unzip git

   Authenticate with the User Admin Pass.