Pi 400 HDMI CEC problems

[RageTester]

So I bought the newest Raspberry Pi product, never had problems with old model.

I have tried adapter and now also bought 1 piece micro HDMI to HDMI cable. TV doesn't see the device when I try to sync. And KODI shows nothing in peripherals too.

Have tried both ports on TV and both ports on Raspberry. Is there perhaps something I have to enable in config

Installing fresh official Raspberry OS image as I write this... Just in case Berryboot was the issue.

[RageTester]

Ok it worked, TV kept detecting the wrong device name from previous installation.

What works is using micro HDMI port further away from power, closer to memory card slot, clean install of Raspberry Pi OS + KODI as application on top of it.

Next experiment is the overclock to 2GHz, not bad for 4 core computer built into keyboard.