Dave Airlie authored Feb 02, 2015 and Matthias Clasen committed May 21, 2015

This patch introduces support for using the newly introduced
monitor objects in the XRandR protocol. These objects are meant
to be used to denote a set of rectangles representing a logical
monitor, and are used to hide details like monitor tiling and
virtual gpu outputs.

This uses the new objects instead of crtc/outputs objects when
they are available to create the monitor lists. X server 1.18
is required on the server side for randr 1.5.

https://bugzilla.gnome.org/show_bug.cgi?id=749561