Torsten Bronger wrote: >> I can add code to use XRandR V1.3 XRRGetScreenResourcesCurrent() >> when available if that makes any difference ? > > I cannot tell, I'm not in this topic deeply enough I'm afraid. Source code here for a version that uses XRRGetScreenResourcesCurrent(): <http://www.argyllcms.com/Argyll_dev_src.zip> Graeme Gill.