How to Fix AMD GPU Radeon Screen Tearing in Debian, Linux Mint and Ubuntu

How to remove those horizontal lines tearing your screen when playing a video file or 3D game on AMDGPU / Radeon graphics.

Screen tearing test:
youtu.be/MfL_JkcEFbE

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lspci -nnk | grep -i -EA3 "3d|display|vga"

ls -l /etc/X11

mkdir ~/xorg-backup
sudo mv -v /etc/X11/xorg.conf ~/xorg-backup/
sudo mv -v /etc/X11/xorg.conf.d ~/xorg-backup/

sudo nano /etc/X11/xorg.conf

Section "Device"
Identifier "Radeon"
Driver "radeon"
Option "TearFree" "on"
EndSection


sudo mkdir /etc/X11/xorg.conf.d
sudo nano /etc/X11/xorg.conf.d/20-amdgpu.conf

Section "Device"
Identifier "AMD"
Driver "amdgpu"
Option "TearFree" "true"
EndSection

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The movie Tears of Steal, used in this video, is licensed under
the Creative Commons Attribution 3.0 license:
creativecommons.org/licenses/by/3.0/
(CC) Blender Foundation | mango.blender.org