Install Realtek RTL8812BU driver on Linux Mint 20.2 Uma

Install Realtek RTL8812BU driver on Linux Mint 20.2 Uma

November 20, 2021 Linux Network 0

Recently bought COMFAST CF-812AC USB3.0 WiFi dongle to my Home Workstation to speed up my WiFi connection and enjoy all goodies of AC(WIFI 5). However as it turned out straight from the box this device doesn’t work so you need to install a proper driver.

There are few drivers on github:

Today we will focus on morrownr/88x2bu

What is COMFAST ?

COMFAST is the core brand of Shenzhen Four Seas Global Link Network Technology Co. Ltd. (Chinese Company) a Wireless equipment supplier.

Technical details

Specification of COMFAST CF-812AC USB WIFI dongle

InterfaceUSB3.0/Copatible USB2.0
Wireless standardIEEE802.11a/b/g/n/ac
Transmission Rate1300Mbps
Wireless speed2.4GHz: 400Mbps, 5.8GHz: 867Mpbs
Frequency Range2.412-2.472GHz; 5.180-5.825GHz
OS SupportWindows XP/7/8/8.1/10 (32bit, 64bit)

Specification of my Home Workstation

OSLinux Mint 20.2 Uma

Install driver

1. Clone driver from git repository

git clone

2. Move driver folder

sudo mv 88x2bu/ /usr/src/

3. Run installation script

sudo /usr/src/88x2bu/

4. Restart the system

sudo shutdown -r now

DONE! After restart WiFi starts working properly!

Some screenshots

1. Network Manager

2. iwconfig wlan0

3. dmesg -Hw



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