Hi I have been using Volumio on a Raspberry Pi4 since the end of the summer and got it setup with soundcloud it has been great so decided to get a DAC from Aliexpress. I was using the 3.5 headphone jack I presume it just connects to the pins on the Pi which I have done and connected the fiber optic cable. However am getting no audio. Any thoughts on what I am doing incorrectly.
Please provide some details as we’re not clairvoyant 
- Volumio version, don’t say the latest
- Which DAC, please provide a link.
- Which way do you want to setup everything, like: rPi4 => USB 2 DAC => …
Of course The DAC is a HiFI Digi+ WM8804G
The Volumio version is 3.785
The setup is Raspberry Pi4 to 7 inch touch screen to with the Pi seated into the Pins on the DAC and a spdif cable connected to Optical IN on a Sony STR DN 1080.
- You have selected “HifiBerry Digi” as i2c DAC?
- What is the output of
aplay -l? - What is the output of
cat /boot/config.txt - What is the output of
cat /boot/userconfig.txt
I have selected “HifiBerry Digi” as i2c DAC.
Do I have to telnet to my pi to find the information for your other 3 questions?
yes it’s via ssh
Do you have any tricks in your sleeve. Seems the DAC isn’t even recognized and I expect it’s a Chinese clone. .
@HiFiGuy
What is the output of:
for i in /proc/asound/card?/pcm*/sub?/hw_params; \
do echo $i; cat $i; \
done
run it as a single command
Hey @HiFiGuy
Whilst searching for the DAC string on Aliexpress I got sixteen variations and any/either/or is not going to help. For technical assistance I require technical details:
DAC
Detailed clear pictures of the PCB of the DAC (both sides) or manufacturer/distributor technical link or the direct link to the Aliexpress item you bought.
Screen
The same details as with DAC. Since i do not see DSI/MIPI overlays mentioned I can only assume that it is HDMI type. Details please.
Build
One picture is worth a thousands of words. Please be mindful that every detail, irrespective how small, is relevant.
I can see from your response that you are attempting to use dtoverlay=hifiberry-digi. For the overlay insertion the kernel module loader responses will be within dmesg register; hence:
With the overlay as it is, power drain your player (shutdown and disconnect all power sources for at least 10s), boot your player, wait for 2-3 min then redirect dmsg output to a file, compress the output and attach to your response. Example:
dmesg > dmesg1.txt
Comment out line with dtoverlay=hifiberry-digi, power drain your player, boot your player then insert the overlay after boot and capture dmesg again. Example:
sudo dtoverlay hifiberry-digi
dmesg > dmesg2.txt
Any further help is based on the details you will provide, included already requested by @Wheaten.
Kind Regards,
First may I say Happy New Year! and Thank You for the support here are the Pics as requested
The DAC
The LCD
Pi is a Pi 4 2GB
Seem the card is not functioning as it’s not even detected by the kernel.
Not sure if it relies on an external PSU or…
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On the other hand, judging from the layout and jumpers, it looks like a knockout of Audiophonics’ WM8804G Interface & TCXO Clock.
A power supply that adapts to your needs
In order to give you the freedom to make the best decision in terms of power supply, the DigiPi+I2S interface will be able to adapt to different power supply configurations. The interface and the Raspberry can be powered via a DC 5.5/2.5mm jack input. The reverse is also possible and the interface can be powered directly via the Raspberry Pi GPIO.
Configuration 1 : The Raspberry Pi powers the DigiPi+I2S.
Configuration 2 : The DigiPi+I2S powers the Raspberry Pi.
CAUTION! - Improper voltage configuration may fry your SBC and the DAC.
Kind Regards,
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I would like to use Configuration 1 where the Pi powers the DAC so i just jump the pins highlighted in configuration 1
Thanks so much for you efforts guys I changed configuration of the jumpers did a restart and sure enough I could see red light showing through the optical connection. Now listening to Volumio the way it should be heard. So glad to get that sorted out. Many thanks again for your help I really appreciate it.
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