@russ Thanks I'm away for a week or more, I'll have a crack when I get back.

@erin-leiker, please give this a try: Run this as your pi user to allow root to send stuff to your pi user's Xwindows: xhost si:localuser:root Install the background service as root with: /usr/share/triggercmdagent/app/src/installdaemon.sh Make sure this variable is set when your command runs as root in the context of your triggercmdagent: export DISPLAY=:0.0 Your agent will be running in background mode, so the commands need "ground": "background" to run that way. I suggest testing with galculator. It's an xwindows calculator app.