Originally Posted by jmyounger
I got my unit at Costco and hooked it up. The problem I am having is that after I turn the unit on and it comes up on HDMI-2, which is my cable/TV, then after a few seconds it automatically changes to HDMI-3, which is my fire stick. I can switch it back to HDMI-2 and sometimes it goes back to HDMI-3, so I switch it back to HDMI-2, again and this time it stays. Do any of you guys know what I can do to remedy this? Thanks, Mike
I have nearly the exact same problem, but in my case it is the Samsung 4K TV being the offender, and the desired input the Xbox One. I say "Xbox On", and the Xbox turns on, turns on the TV and Yamaha, the input is already on the Xbox One's input, I get a moment of sound, then the TV hijacks the input to "Video 4" or something (I forget the exact name) which is whatever the default name for ARC from the TV is. If I immediately switch the input back to the Xbox One's HDMI, the TV will hijack it again, possibly several times (it seems to just keep re-acquiring attention via CEC for the first 30 seconds or so after power on). After around half a minute, the TV stops hijacking the input and I can set the input back to Xbox One.
The entire time, video remains on Xbox One, it's just the audio that switches - which means that the TV is still displaying the video coming up the chain, but for some reason thinks it should force the receiver to the ARC channel instead of leaving it on the inbound channel from the Xbox.
It seems that it the absence of CEC signaling from the victim device (in my case Xbox One, yours the cable box), the "greedy" device (my Samsung TV, your Fire stick) grabs control on power on simply because it was powered on and thinks it's the only thing in existence. The fact there's less complaining about this leads me to believe that if everything or nothing uses CEC, the problem would be solved.
I've been too lazy to re-arrange the cabling (I suspect if I plug the Xbox directly into the TV and then let the audio flow through ARC *always* I won't have any issues) and I haven't wanted to disable CEC, so the problem remains...
Everything worked fine for most of a year, it wasn't until an update to the Samsung TV that this started happening.