Package: x2goserver 
Version: 4.0.1.19-0~1064~ubuntu14.04.1

description: after installing a fresh OS template to a
server that runs OpenVZ and then installing x2goserver 
and also a GUI (tested all of these: XFCE/MATE/GNOME) - i 

logged in remotely via x2goclient and saw the error in a popup:

stdin: is not a tty

this also occurs for me using some other OSs in the same

environment.

i have searched online and only found reference to this error

in the context of standard console SSH connections, not to 

x2go connections.