So I have two primary ways I use CEC to control my home entertainment system:
- When using Apple TV as the primary source.
I press the "main" [top right] button on my Apple remote. AppleTV comes on, turns on my receiver and TV. Generally works well.
- Playing high definition music stored on my NAS.
I'm using a software product called Roon. I start the client on my PC which connects to the server on my NAS and streams the FLAC files on my server to my OPPO 4K Blueray player which in turn streams them to my receiver for playing. In this process I'm using a Harmony universal remote to turn on the receiver, set the receiver to the OPPO's input and also turn on the TV. The AppleTV is "off" as evidenced by the front light not being lit.
The problem with this latter sequence is that the AppleTV, virtually every time, decides to wake itself up and reset the receiver's input to AppleTV requiring me to manually reset the receiver's input to the Oppo. Sometimes I have to do this three or four times, as the AppleTV can't seem to really believe it's neither needed or wanted.
Anyone seen similar issues with AppleTV taking over control when not wanted and have suggestions? This has been a long term problem: back before I moved all my streaming over to the Apple TV from my FireTV Cube, I literally neutered the Apple TV by using an HDMI adapter that blocked all CEC commands into and out of the APPLE streamer.