Comment 6 for bug 979959

The message "RANDR extension is not present" originates from the package "gnome-desktop3"

libgnome-desktop/gnome-rr.c::gnome_rr_screen_initable_init()

if (XRRQueryExtension (dpy, &event_base, &ignore))
{
...
}
else
{
   g_set_error (error, GNOME_RR_ERROR, GNOME_RR_ERROR_NO_RANDR_EXTENSION,
                   _("RANDR extension is not present"));

  return false;
}