This patch makes the mouse pointer disappear when the physical mouse
device is unplugged. It also makes the mouse pointer reappear when a
physical mouse is hotplugged.
NB: There is one small hiccup with this patch and that is: when you
re-plug the mouse in the pointer itself doesn't show until you
physically move the mouse. Tried several things locally to sort it
out, but no success :/
Signed-off-by: Chris Michael <email@example.com>