Plan 9 from Bell Labs’s /usr/web/sources/contrib/fgb/root/sys/src/ape/X11/lib/Xcomposite/README
RandR X RandR Extension Version 1.0 2002-10-4 This package contains header files and documentation for the X RandR extension. Library and server implementations are separate. Keith Packard keithp@keithp.com