X Windows has an argument,
-nocursor, that can be used to hide the mouse cursor. See https://www.x.org/wiki/AdvancedTopicsFAQ/ for more information.
On the ComfilePi, you can add this argument to the /etc/lightdm/lightdm.conf file to hide the mouse cursor. Open the file in a text editor and edit the
xserver-command line to include the
For example, if the
xserver-command line is
xserver-command=X -s 0 dpms, edit it to be
xserver-command=X -nocursor -s 0 dpms