On 03.02.2017 11:33 AM, Willie Nel wrote: > When connecting to a remote X2go server from a Mac running MACOS Sierra the > client opens the conneections, and either sometimes fails with a > MIT-MAGIC-COOKIE -1 error, or goes through most of the hoops and finally > having connected, just ends up with an empty session > > Here is the —debug log from my attempts Uhoh... it's using the *compat* mode? That should only happen on 10.4. 10.5 and higher normally have the DISPLAY variable set and launchd automatically handles starting the X11 server via socket-access-detection. Obviously this code should not be triggered at all on 10.12. Are you positive XQuartz is installed? I hope you re-logged in after installing XQuartz once? If yes, can you please spawn a local shell and get the DISPLAY value via "echo $DISPLAY"? Mihai