Sure Ken, How did I end of with old xrandr ?
dpkg -l |grep xrandr
ii libnx-xrandr2:a 2:3.5.0.32-0 amd64 nx-X11 RandR extension library
ii libxrandr-dev:a 2:1.4.2-1 amd64 X11 RandR extension library (develop
ii libxrandr2:amd6 2:1.4.2-1 amd64 X11 RandR extension library
that is why, using X2go server...
xdpyinfo
name of display: :50
version number: 11.0
vendor string: The X.Org Foundation
vendor release number: 70000000
X.Org version: 7.0.0
maximum request size: 16777212 bytes
motion buffer size: 256
bitmap unit, bit order, padding: 32, LSBFirst, 32
image byte order: LSBFirst
number of supported pixmap formats: 7
supported pixmap formats:
--
-- John