Install xserver-xorg-video-radeon-hwe-16.04-dbg by entering the following commands in the terminal:
sudo apt update sudo apt install xserver-xorg-video-radeon-hwe-16.04-dbg
Description:
Transitional package for xserver-xorg-video-radeon-hwe-16.04-dbg
This is used for upgrading from 16.04 to 18.04.
Version: 3:14.1
Section: universe/oldlibs