Install unclutter by entering the following commands in the terminal:
sudo apt update sudo apt install unclutter
Description:
hides the mouse cursor in X after a period of inactivity
unclutter hides your X mouse cursor when you don't need it, to prevent it from getting in the way. You have only to move the mouse to restore the mouse cursor.
Homepage: https://web.archive.org/web/20151129214845/http://ftp.x.org/contrib/utilities/
Version: 8-21
Section: universe/x11