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[Invalid] - Odroid C2 SPDIF sound output


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Hi ,


i buiild a SPDIF connector like shown here:



it uses the J7 SPDIF output which is connected to HDMI.

On coreelec i can clearly see a HDMI soundcard output with aplay -L , i dont see that on armbian....


Is odroid c2 spdif output on armbian working ? why do i not see this soundcard that f.e. libreelec is showing ( i have 2 odroid c2s , one is running coreelec in my living room with HDMI connector working)


im using a little older armbian distro since the latest has ethernet issues on C2 (im using 20.11 , kernel 5.9.10 debian edition )




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Your issue report is invalid for one or multiple reasons (non-exhaustive enumeration):


  • it has been stated at the wrong place
  • it lacks fundamental requested data
  • it could have been easily solved by a quick search and/or reading documentation
  • unsupported userspace/image/SBC


Since you refused to use the bug reporting form carefully and follow the information there as you have been asked for we have no intention to further investigate.

Please add missing information if applicable.



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Good morning, I have a very similar topic and I think it is related to the ALT function assigned to pin 2 on header J7 of Odroid C2.

I ran a script taken from here https://wiki.odroid.com/odroid-c2/application_note/gpio/gpio_default_check_program and got

ALT4 as result with HK ubuntu 20 while I get ALT2 with armbian 23.11, which is "I2S_IN_01" instead of "SPDIF_OUT" according to S905 datasheet found on the Hardkernel site.

I have the same connector described in the link https://forum.odroid.com/viewtopic.php?t=21477, but it is impossible to get digital audio output with armbian.

I have checked other posts but was unable to find any solution. Can you please help me?

Thank you.


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