HDMI-CEC does not work on armbian debian

[alexc]

I am trying to use radxa-zero with HDMI CEC support on Armbian debian.

I tried all different Armbian debian versions, lsmod never give me module cec

So I took a look at images provided by radxa (https://github.com/radxa-build/radxa-zero/releases/tag/20220801-0213, not armbian ones), cec is loaded by default

 

I think this is the key:

/lib/modules/SOME_KERNEL/kernel/drivers/media/cec/core/cec.ko

This is in their image but not /lib/modules/6.1.11-meson64 folder (I guess also not in other kernel versions)

 

If that's the case, CEC should not work on any meson64 devices.

 

I saw CONFIG_CEC_CORE=y is in config. 

btw, another possible related missing module is meson_dw_hdmi.ko

 

Could someone take a look and figure out why they are not there?

 

Really appreciate your help!

[alexc]

well I guess I am too naïve about this lol. That's not the same as Raspberry Pi OS.

I think Armbian is built for certain use cases. I tried CoreELEC, CEC and hardware acceleration work as expected. 

I understand maybe it's hard to bring all the stuff to the same distro/repo. Thanks for all the effort!

 

btw now I know CEC is not modularized so it's not in /lib/modules. But CEC (at least cec-client or kodi) still won't work on Armbian

Edited July 27, 2023 by alexc

[Igor]

On 7/27/2023 at 8:41 PM, alexc said:

still won't work on Armbian

Try Armbian OS on Raspberry Pi. Function will work. The problem is this:
https://docs.armbian.com/User-Guide_FAQ/#why-does-hardware-feature-xy-work-in-old-kernel-but-not-in-more-recent-one

 

Better hardware functionality of factory Radxa software is paid this way: