HATs and other add-ons • IQAudio piDAC-Plus stopped working

I'm currently using a Raspberry Pi 5 as my office desktop and of course I listen to music while working. I got an IQAudio Pi-DAC + for this to connect my speakers with a cable, rather than with bluetooth. It worked well until I tried to fit a camera module as well to the installation (didn't get that to work yet, but it's a skill issue on my side). After that adventure the Hat does not send out any sound to my speakers.
From what I can see the HAT is recognised and installed properly.

$ grep -a . /proc/device-tree/hat/*
/proc/device-tree/hat/name:hat
/proc/device-tree/hat/product:Pi-DAC+
/proc/device-tree/hat/product_id:0x0003
/proc/device-tree/hat/product_ver:0x0004
/proc/device-tree/hat/uuid:5f2a37a1-d616-413d-9101-95b47b6836ca
/proc/device-tree/hat/vendor:IQaudIO Limited www.iqaudio.com

but my Raspberry doesn't see it as an audio unit.

aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: vc4hdmi0 [vc4-hdmi-0], device 0: MAI PCM i2s-hifi-0 [MAI PCM i2s-hifi-0]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: vc4hdmi1 [vc4-hdmi-1], device 0: MAI PCM i2s-hifi-0 [MAI PCM i2s-hifi-0]
Subdevices: 1/1
Subdevice #0: subdevice #0

I've tried a number of combinations in my /boot/firmware/config.txt:
I tried to comment dtparam=audio=on and use dtoverlay=iqaudio-dacplus but nothing changed.
I tried any combination of the two above with dtoverlay=vc4-kms-v3d,nosound but it only turned off all audio devices.

One thing I remember from the camera adventure is that I used a rpi-update and also a apt full-upgrade.

I really would like to avoid flashing another card since I use a Nvme base to boot from and it would take some time to get my setup back.

Statistics: Posted by Tyrell_72 — Tue Apr 16, 2024 5:49 am

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