HDMI-CEC Problems Odroid C4 / N2 / N2+ Part 2

[Vodalex]

Hello again!

I have the same problems with Kodi as before stated in the topic from nov 2020.

HDMI-CEC Problems Odroid C4 / N2 / N2+

Hello friends! i have been using Odroid for a long time. Started with Odroid C2, following C4 and N2 and finally N2+. I have a weird problem with HDMI-CEC on devices C4 / N2 and N2+. After certain amounts of key presses on the remote of my TV the TV or the AMP just looses HDMI-CEC connection to the Odroid. It happends if the Odroid connected to the amp or directly to the TV. If I restart the Odroid using KoRe Remote or using extra IR-Remote the CEC is working fine again. I have been struggeling …

The Kodi randomly kill cec bus. Only a restart of the system brings it back to life. When the connection ist lost I cannot connect to other CEC devices. Odroid N2+ is connected to Pioneer AVR. The physical adress is set to 2400 (HDMI 2 on TV - ARC and HDMI 4 on the AVR). Any help would be highly appreciated.

[Portisch]

@Vodalex

Any help would be highly appreciated.

https://wiki.coreelec.org/coreelec:ce_support#opening_a_support_request

And your answer:

HDMI-CEC Problems Odroid C4 / N2 / N2+

I am sorry but I can not solve your Samsung CEC issue. The TV just stop sending any CEC message to the device. Maybe a “heartbeat” or something like this is missing from libCEC. It just stop at Jan 10 19:23:29.505163 CoreELEC kernel: cectx ff80023c.aocec: cec a rx len 2:01 45 Jan 10 19:23:29.505484 CoreELEC kernel: cectx ff80023c.aocec: read msg len=2 Then nothing else get received from the TV. I can’t help here much more as I have no possibility to make any deeper research about Samsung & …

[rabaraf]

Did you try if CEC functionality is back when you kick on this function using Yatse application from your Android phone:

?
If it works then I don’t know how but this command would be nice if it is invoked from CoreELEC every few minutes???

[Vodalex]

When I try this the CEC activates again and all the commands I pressed before which were not executed are being executed as if there were a “traffic jam” in the cec bus, which is being unblocked by this command.