Hi. Getting frustrated with this, really tried all options I can think of.
Pi 3 with Hifiberry Digi+ v1.3.
pi@retropie:~ $ uname -a
Linux retropie 4.9.35-v7+
pi@retropie:~ $ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: sndrpihifiberry [snd_rpi_hifiberry_digi], device 0: HifiBerry Digi HiFi wm8804-spdif-0 
Subdevice #0: subdevice #0
Commented out "dtparam=audio=on"
Playing a wav with aplay does not output sound, toslink does not even light up. Green diod on card is on however.
Tested with mplay, no sound there either.
Any suggestions what to check?