After my living room was redecorated I've reconnected my kodi rasperry pi box, TV and AVR and CEC has stopped working. It used to work flawlessly for what I wanted - the volume control on the TV controlled the AVR and not the TV volume, and when I turned the TV on or off the AVR turned on or off. It's stopped working now and googling brought me to a suggestion that it might be the HDMI cable used. Further googling suggests that there is a pin on it that has CEC so I suppose CEC might not be connected on an old, cheap cable. So I stuck and order into amazon for 3 new HDMI cables to replace what I already have. https://www.amazon.co.uk/gp/product/B01N5GA8GV/ These seem to be a bit overkill to me, but I have the feeling if I get them then they will mean I don't need to worry about it being the cables. On the other hand I'm aware that cabling has lots of scams going on and things like Monster cables peddle all sorts of spin to sell cables. Is there any realistic chance at all that my cables might be the cause of CEC falling off? If not then I'll cancel the HDMI cable orders and try and find another solution. It's a Hisense 65k5510 with an Onkyo 609.