I'm testing out a few possibilities for getting 3d games working on thin clients, using the likes of virtualgl. But I can't even get basic XDMCP or VNC working... VNC (via xrdp) says "Oh no! Something has gone wrong", which I think is a gnome message XDMCP keeps giving me obscure messages about needing to authenticate to get a color managed device, and then crashes (gdm on the console too). And then I'm left with heaps of gdm-session-worker processes running... And auth.log and syslog are so full of cryptic error messages that I don't quite know where to start - past experience says that a bunch of error message under gnome are probably normal so I don't know which are important and which are just noise. I'm using Debian Jessie, so obviously some bugs are to be expected... but is anyone using XDMCP with gnome successfully? Thanks James