How to enable HDMI-CEC

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How to enable HDMI-CEC

Unread post by enflamed » Thu Jun 13, 2019 4:37 am

Hi guys,

I am looking how to enable HDMI-CEC on Odroid N2 using freshly installed ubuntu-18.04.2-4.9-mate-odroid-n2-20190325.
In particular, my device is connected to an LG C8 OLED tv and I would like to read basic remote button presses (e.g. volume up, down) on the N2.
Does anyone have any experience with this?

Thanks!

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Re: How to enable HDMI-CEC

Unread post by deuteragenie » Thu Jun 13, 2019 4:46 am

Look at cec-utils / cec-client

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Re: How to enable HDMI-CEC

Unread post by enflamed » Thu Jun 13, 2019 4:59 am

I have installed cec-utils using
sudo apt-get install cec-utils

However I have 'found devices: NONE' when running
cec-client -l

Not sure if the issue with my HDMI cable or the actual installation... Is there any special procedure I should follow with the N2?

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Re: How to enable HDMI-CEC

Unread post by deuteragenie » Thu Jun 13, 2019 4:40 pm

Interesting. I thought it should work out of the box. No clue why this is not the case.
Just to be sure... your HDMI cable is connected to ... your TV ?
And ... HDMI-CEC is activated in your TV: https://www.tomsguide.com/us/lg-tv-sett ... 24-14.html ?

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Re: How to enable HDMI-CEC

Unread post by enflamed » Thu Jun 13, 2019 9:14 pm

Yes, I have an HDMI cable going directly to my TV HDMI input port (1).
The TV supports CEC and it is enabled properly.

Reading different forums, sometimes it might be the issue that not all ports on the TV support CEC, so I might try to play around with that.
Also, apparently some HDMI cables do not support CEC, so I might need to invest in buying a new cable.

However, before I do that just wanted to check with the forum (to avoid unnecessary work / additional costs) if indeed CEC should work out of the box or if there is a special configuration for the N2 that I am missing.

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Re: How to enable HDMI-CEC

Unread post by nurikodd » Thu Jun 13, 2019 10:18 pm

same with my n2+ubuntu minimal. however when I launch CoreELEC everything works out of the box on same hardware, so this is 100% software issue

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Re: How to enable HDMI-CEC

Unread post by odroid » Fri Jun 14, 2019 12:15 pm

We will check the CEC functionality with Kodi on our minimal Ubuntu image next week.

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