Package unclutter

Hide mouse cursor when idle

ftp://export.lcs.mit.edu/contrib/utilities/unclutter-8.README

Unclutter hides the mouse cursor image from the screen so that it does not
obstruct the area you are looking at. It hides the mouse cursor when it is not
moved for a specified amount of time or no buttons are pressed on the mouse.
Cursor image will be restored once the mouse is moved again.

General Commands
Command Description
unclutter.1x remove idle cursor image from screen