Install xserver-xorg-input-wacom by entering the following commands in the terminal:
sudo apt update sudo apt install xserver-xorg-input-wacom
Description:
X.Org X server -- Wacom input driver
This package provides the X.Org driver for Wacom tablet devices.
Homepage: http://linuxwacom.sf.net
Version: 1:0.36.1-0ubuntu1
Section: x11