Raspberry Pi Zero 2 does not detect sound cards

Project help balenaSound
1

Hi, Raspberry Pi Zero 2 does not detect sound cards.
I connected the supported DAC. Raspberry Pi Zero and 4 correctly detects it immediately after installation, even without additional configuration.
RP Zero 2 does not work despite having “BALENA_HOST_CONFIG_dtoverlay” and “AUDIO_OUTPUT - DAC” set.

Audio log message below

audio Detected audio cards:
audio —nosoundcards—

4

Hi, @mishaps, we haven’t thoroughly tested balenaSound with the Pi Zero 2. Can you ssh into the audio service and run a few commands? That might help troubleshoot.

In the audio service run:

  • aplay -L
  • aplay -l
  • cat /proc/asound/cards

In the hostOS:

  • cat /proc/asound/cards

Thanks!

6

Hi, thanks for the answer. There were some smooth running issues on Pi Zero, so I opted for Pi Zero 2, although you are right this version is not marked as supported :slight_smile:

Audio service

bash-5.1# aplay -L
null
Discard all samples (playback) or generate zero samples (capture)
bash-5.1# aplay -l
aplay: device_list:274: no soundcards found…
bash-5.1# cat /proc/asound/cards
— no soundcards —

hostOS

root@balena:~# cat /proc/asound/cards
— no soundcards —

I tried with these DACs