Can’t find this specific issue in previous threads, so here I am (and yes I have rebooted several times to no avail…)
Have a Rpi3b+, powered by official Pi4 supply, new SD card, installed the IQ Audio card with a Waveshare 3.5" Lcd on top.
Installation of the screen went well with no real issues, image and touch working well. But there’s no sound, the audio hardware (cable, amp) is proof since it works with anyhting else and was working with the previous Pirate Audio Line-out.
I have followed the official instructions (https://datasheets.raspberrypi.com/iqaudio/iqaudio-product-brief.pdf) to select “IQ Audio Digiamp+” as l2s, but have the “failed to open ALSA hw 2.0” message, which seems to be a wrong/unsupported DAC?
I have tried to select different DAC types resulting in the same error message. If I select “HifiBerry DAC+” there’s no error messages but still no sound.
Has anyone had the same issue? I am a bit puzzled here.