A related question is a question created from another question. When the related question is created, it will be automatically linked to the original question.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
On the other hand, we have other solution that can help them. Please, take a look at page 15 of the HD3SS214, we have a usb switch that can support CEC line and CAD line from HDMI. In this case, it works with CONFIG1/2 because this device is for DP++, but it doesn't have any problem to handle CEC and CAD signals from HDMI.
