First, verify your driver configuration, after create the proper conf file.
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