Ok @js, you could change your commands.json to this:

[ {"trigger":"Monitor","command":"/root/monitor.sh","ground":"background","voice":"Monitor","allowParams": "true"} ]

And put this in your /root/monitor.sh script:

#!/bin/bash if [ "$1" = "on" ] ; then echo Turning it on vcgencmd display_power 1 fi if [ "$1" = "off" ] ; then echo Turning it off vcgencmd display_power 0 fi

And say this to Alexa or Google Assistant:

ask TRIGGERcmd to run monitor with parameter on

Or use the TRIGGERcmd Smart Home Alexa skill or the SmartThings integration with Google Assistant, and say this:

turn on monitor