No sound via spdif

[Артем Губкин]

Hello everyone!
My sound is only output via hdma, there is complete silence via spdif. And I need spdif specifically Any ideas on how to fix this?
My tv-box is H96 max x3, I boot up via the Ugoos x3 device tree.
Who has sound via spdif on a tv-box with Armbian? On which tv-box exactly?

[SteeMan]

https://forum.armbian.com/topic/16976-status-of-armbian-on-tv-boxes-please-read-first

 

I'm not aware of this working on any boxes I have.

[c0rnelius]

This can be done on S905X3 boxes "tested on the X96AIR-GBIT and H96MAX", but it would require patching the DTS files and applying the correct mixer settings.

 

	amixer -c 0 set 'TOHDMITX' 'on'
	amixer -c 0 set 'TOHDMITX I2S SRC' 'I2S B'
	amixer -c 0 set 'TDMOUT_B SRC SEL' 'IN 0'
	amixer -c 0 set 'FRDDR_A SRC 2 EN' 'on'
	amixer -c 0 set 'FRDDR_A SRC 3 EN' 'on'
	amixer -c 0 set 'FRDDR_A SINK 1 SEL' 'OUT 0'
	amixer -c 0 set 'FRDDR_A SINK 2 SEL' 'OUT 1'
	amixer -c 0 set 'FRDDR_A SINK 3 SEL' 'OUT 3'
	amixer -c 0 set 'SPDIFOUT_A SRC SEL' 'IN 0'
	amixer -c 0 set 'ACODEC' '85%'
	alsactl store

 

Can also boot with mainline u-boot on them, but you would lose the ability to easily go back to Android.

 

The patch I use for linux 6.6.y;

 

004-arch-arm64-dts-amlogic-meson-sm1-ac2xx-tv-boxes.patch

[SteeMan]

@c0rnelius  Have you submitted those dts patches upstream? and/or should they be added to Armbian?  I don't have those boxes so I can't test, but maybe helpful to others.

[c0rnelius]

Nah. I haven't submitted them. I've considered doing a PR to Armbian, but just never did as I'm honestly not sure what the state of things are on the Armbian front when it comes to TVBOXES.

 

[SteeMan]

Well, I'm keeping the Amlogic TV box builds alive as I have a bunch of personal servers running on that hardware.

[c0rnelius]

Well you are more than welcome to use what you want from the patches for S905X3. I've only run tests on the ones I have of course, but the SPDIF and ANALOG are identical on both. I suspect they are probs generally the same on most of those BOXES.