THE PACKAGE x2gotrinitybindings is not available, yet.

X2Go bindings for the Trinity desktop will add additional functionality to your Trinity desktop. You'll be able to access shared filesystems and to unmount them. You'll also be able to suspend your session with just a click on a menu entry → “lock display”. You'll need to install the package on X2Go server-side

$ apt-get install x2gotrinitybindings

If you wan't to use the “lock display” button inside the KDE menu for the session suspend feature, you'll need to run this script:

$ updatelockbutton