So far, so good but I need some time to know if it is stable and will reboot during the day(s). I’ll keep you informed,
regards, Hans.
Hardware: RPi 3b / HifiBerry DAC+ / official Raspberry 7" touchscreen / Sandisk Ultra HC-I 16 gb / 4A switching power connected to the GPIO-pins (5.1 volt on boards)
Earlier than expected, problems… After working correct for half an hour I did a reboot and the GUI works as expected but no audio, even not after some more reboots. But when I change audio output in the setup from DAC+ to the RPi earphone jack all works fine. Hope this info is helpfull to solve the problem.
It turned out the system does, as far as I can say now, boot always when set to play audio via the RPi phone jack. When set to play via HiFiBerry it sometimes boots and the GUI is shown without playing audio, sometimes it does not boot at all and the screen stays black until a next boot.