the Raspberry Pi (model 3B+) is an always-on board by design - it has no power button. This will make LE sending a permanent video signal to my TV. When I turn the TV on, it will instantly switch to the active video signal input (LE), and doesn't stay in TV mode. This is bad, and I want to find a solution.
The first idea was to temporary switch off the HDMI signal by the command "tvservice -o". Unfortunately the command to switch HDMI on again "tvservice -p" doesn't work on LE.
The next idea is to put the Raspberry Pi in a case with a power button. I have found the Pi-Desktop case by Element14 on the market. To make the power button work, it needs an additional Debian package "pidesktop-base.deb". The source code for this package is available on Github.
Is there any add-on or another solution to make the Pi-Desktop power button work on LE?
PS: I have been found this thread, which is still unsolved and has a "maybe too old" warning. If someone made it work from there, please give me a notice.