I'm running Fedberry 29 on a RPi 3B+. Recently I bought a PiJuice HAT. With the onboard SW1 switch, it should be possible to shut down the device by pressing the swith for 10 secs. That doesn't work. Nothing happen.
As an experiment, I installed the apcupsd package. When pressing the SW1 for 10 secs, I got a broadcast message saying that the system lost the connection to the UPS.
Do I need to enable some feature in the /boot/config.txt to get the shut down to work?