maybe it's two seperate issues I have here:
A. First attempt was to enable DAC+ Standard phone jack board on RPI2 with berryboot via:
as in https://www.hifiberry.com/guides/configuring-the-sound-card-in-openelec-with-device-tree-overlays/
-> I used the config.txt of berryboot, since I thought this would be used but I tried as well to create one in /flash with th two lines - however,
vcdbg log msg
didn't give me any hint i tried to load any hifiberry component.
I felt stuck after some hours and decided I'm an idiot and tried something different as you suggested, downloaded your Raspbian with test tone generator from
Installed on a new, empty SD card, it detected the card - so it seemed, I misunderstood something about berryboot and config.txt handling.
But: when the sound started to play - there was no output. I double checked the amplifier and I tried a headphone on the port - not the slightest sound hearable, just some loud scratching if I move the plug in the jack.
So on one side - it looks like an error on my side. However, the second test seems weird.
Anything I could check to get the card to work?
Micha from Dusseldorf