Hello,

I'm running an Pi4 with a Pi Touchscreen, PiCore and LMS. I'm trying to
have an on/off button (It can be two button if neede). So far I have
connected my button to GPIO 22, and the shutdown works. I need a proper
shutdown as it is connected to a multiplug that I switch on/off quite
often. Currently I don't mind that it always turns on and turning it off
manually, but I would like to improve it.

Here some questions:
- I noticed that the screen does not fully turn off (backlight is just
on the lowest brighest). How can I turn it off?
- Is it possible to turn it back on again with the same button? I
noticed an option the interface (not the web one, the physical one on
the screen) called "Enable Power On Button when Powered Off", how to use
it?
- Is it possible to not have it turn on when the power is applied, but
rather wait the press of a button?


Many thanks in advance.


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