Portsdown shut down button (using rpi pins 13,15, GND) to the devices.
As it looks, the display is also using these pins. -> Can the shut down button arrangement (LED+pushbutton) be connected in parallel to the display?
Thanks for info, 73, Hub
Its a handy option to have if you need a really 'quick as possible' re-boot (like to initialise something else I just plugged in.....)..
I had been out on the road therefore the late answer: firstly thanks for your hints, secondly: I checked pin 13 on the Joy-IT Display and it appeared not to be connected. Next I connected a LP LED: is working.
I find it usefull to be able to see when the Raspi halted to safely shut down the power supply.