[Dr.Feelgood]

MegaChips seems to support CEC natively according to spec. It would be interesting is someone could test it, whether TV would relay the remote commands back to the ASRock box via CEC. Assuming the operating system and particular driver can expose the CEC over DP AUX.

That would be interesting indeed, though I assume that kodi would need to have some kind of driver built in for that. And as far as I know all the CEC implementations are always going back to the PulseEight libCEC driver in Input/Peripherals. I always thought libCEC is kind of only PulseEight related. If it is so, then I doubt that the MegaChips implementation is compatible to it, don't you think? Unfortunately I don't own such a board, nor the new NUC (not yet released in germany apparently), so I cannot test it :/

Do you see a device on your ASRock system that could be used to access the CEC data? The driver would need to hook to something... If you have the Pulse Eight device, it's clear: there is an USB device that the driver talks to.

I don't know whether the Intel display driver could somehow expose the CEC data, but I doubt.

The Intel NUC NUC6CAYH has the following functionality :
"The board contains two mutually-exclusive methods for controlling HDMI CEC devices:
- External CEC adaptor connected via CEC connector (item L in Figure 13; pinout in Table 18)
- Onboard CEC control from the embedded controller via HDMI cable and BIOS setup."

This means that you can use the limited functionality (switch TV on/off when powering the NUC) via BIOS or you get the Pulse Eight adapter to get full CEC support. At least there's a CEC header on the board. Does the ASRock have such a connector?

The Asrock J4205-ITX does not have custom solution header, high res of the board https://cdn-reichelt.de/bilder/web/xxl_w...ITX_01.png
I was hoping that i could use CEC with this board without need of pulse eight, unfortunately it seems that we are left without CEC functionality ...