SlackBuildsOrg/misc/xbanish
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README
slack-desc
xbanish.info
xbanish.SlackBuild

xbanish hides the mouse cursor when you start typing, and shows it again when
the mouse cursor moves or a mouse button is pressed.  This is similar to
xterm's pointerMode setting, but xbanish works globally in the X11 session.

One can easily start this automatically by putting `/usr/bin/xbanish &' to eg.
~/.xinitrc or some other DM specific startup file.