@bhepler, you’re my hero !

Thank you so much for your kind advice !
Starting motion with pm2 solves the issue.
I just did not dare to start also the magic mirror with it as I’ve read somewhere that they would start simultaneously and as a consequence everything would fail… I will try but later on !

Thank you agin !
Nat

@bhepler It works perfectly !
Thank you so much for sharing !

I’ve installed the Pi camera behind the mirror and it allows motion detection to turn on-off the monitor.
https://forum.magicmirror.builders/topic/988/motion-detection-with-raspicam-non-module-version
As suggested by Bhelper I start it with pm2 and the result is just … perfect!