[SOLVED] Odroid C2 - No HDMI-Sound on Android

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Schlummi
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[SOLVED] Odroid C2 - No HDMI-Sound on Android

Post by Schlummi » Sun May 10, 2020 4:59 am

Hello all
I've setup my Odroid C2 with the latest Android selfinstall-odroidc2-eng-s905_6.0.1_master-122-v5.7.img
The device is running well but I have no audio on hdmi.
I tried several HDMI cables and two different TVs. No luck, the picture is good but there is no sound. Checked with youtube and different IPTV apps. The volume is up and not muted.
Then I switched to ubuntu-18.04-3.16-mate-odroid-c2-20190820.img.xz with same TV an same cable.
Cool, sound is now available. So the hardware is ok, but where is the problem?
Any idea?
Last edited by Schlummi on Tue May 12, 2020 11:36 pm, edited 1 time in total.

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Re: Odroid C2 - No HDMI-Sound on Android

Post by Schlummi » Sun May 10, 2020 6:54 pm

Hmm, I made an other test and installed selfinstall-odroidc2-eng-s905_5.1.1_master-322-v4.0.img
For this test I didn't install any app but played youtube on the browser. Still no audio.
I went to the Android audio settings and changed the notifications tone. And what a surprise I can hear it.
So the system seems to work, but why is there no audio on the browser or any separate app?

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Re: Odroid C2 - No HDMI-Sound on Android

Post by odroid » Mon May 11, 2020 12:28 pm

Install Google service and try Chrome and Youtube apps.
viewtopic.php?f=137&t=19358

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Re: Odroid C2 - No HDMI-Sound on Android

Post by codewalker » Mon May 11, 2020 5:45 pm

Do you mean that c2 only sound out settings?
Please open chrome browser and seach "test mp3".

Click first result and try to download.
https://file-examples.com/index.php/sam ... -download/
Play downloaded mp3 with music app and let me know.

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Re: Odroid C2 - No HDMI-Sound on Android

Post by Schlummi » Tue May 12, 2020 5:07 am

These tests are made with the latest Android 5.1.1:
- I still can hear playing these calling sounds if I select a different one.
- Youtube in Browser - no sound
- App Youtube - no sound
- blackplayer mp3 player - no sound
- search for different pages with mp3 testfiles in firefox and played them - no sound
- installed hifi-cast and streamed mp3 from my nas - no sound
Puhh, this is rather strange.

Same effect on Android 5.1.1 as on Android 6.0.1, I think I can go back to 6.0.1 and keep on trying with marshmallow.

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Re: Odroid C2 - No HDMI-Sound on Android

Post by odroid » Tue May 12, 2020 9:59 am

Really weird.
Can you show us the audio settings screen?

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Re: Odroid C2 - No HDMI-Sound on Android

Post by Schlummi » Tue May 12, 2020 6:23 pm

Uhhh, I've found my troublemaker.
I have a Minix Remote in use.
Looks like this:
http://minix.com.hk/products/neo-a2-lite
When I plugout the USB dongle, tataa, sound. Wow, that's nasty.
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Re: Odroid C2 - No HDMI-Sound on Android

Post by Schlummi » Tue May 12, 2020 8:45 pm

And now the solution, I had to enable "disable USB audio routing" in developer options.
Cool
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