x11proto-randr-dev 1.5.0-1 (i386 binary) in ubuntu bionic

 This package provides development headers describing the wire protocol
 for the RandR extension, used to change display properties such as
 resolution, rotation, reflection, et al, on the fly.
 .
 More information about X.Org can be found at:
 <URL:http://www.X.org>
 .
 This package is built from the X.org randrproto proto module.