Integrated SPDIF out problem on Cubox-i 4P

[kabhotz]

Dears I have recently installed this image volumio-2.857-2020-12-16-cuboxi.img on my Cubox and after some tests I can’t have output signal from SPDIF.

I have tried to make some debug on it and the kernel seem recognise the correct driver but alsa appear misconfigured.

Here an image of alsamixer after a fresh install:

To get more information about this issue I have executed alsa-info.sh, at this link you can find the result:
http://alsa-project.org/db/?f=b139f403ee5ffd7041bce4eb92438a0c289450ba

Please someone can give me some help to solve the problem?
Thanks in advance for the support!
G.

[gkkpch]

SPDIF does not have mixers, so the message is correct.

[kabhotz]

I have tried to change the DAC but with no results.

The signal appear to be transmitted from Cubox to DAC but I still can’t heard nothing, the red point is visible in the optic cable.

During my tests I have observed a strange thing in the web GUI:

Seems that the audio outputs are disabled. Maybe it could be the real problem?

[kabhotz]

Yesterday I have tried the HDMI port and the audio work without any problem.

I’m still thinking that the problem is the DAC.

[kabhotz]

Sorry @gkkpch may I know what model of DAC are you using with Cubox i4? Thanks in advance!

[gkkpch]

I do not have a Cubox-i4, but the cubox-i2ex. For testing new images it is mostly connected to a small Chinese SMSL SD-793II headphone amp.It has both coax and optical (toslink) inputs.
But the Cubox-i2ex also works well here with a Pro-ject Pre Box S2 Digital.
Have you considered using a USB DAC?

[kabhotz]

I’m considering the TOPPING D10s DAC do you have any news about it? It will be compatible with Volumio?
TOPPING D10s seems to me the best DAC considering quality and price.

[gkkpch]

D10S should work just fine with Cubox-i

[kabhotz]

Thanks worked like a charm!