Looks like LG is the culprit then, unless someone else can confirm another make of TV that it happens with.
In any case after a bit of experimenting today it came down to this where the Apple TV is on HDMI3:
Scenario 1
- Apple TV is already awake
- Switch LG input to HDMI3
- Control Centre appears
Scenario 2
- Apple TV is
asleep
- Switch LG input to HDMI3
- Apple TV automatically wakes up after about 5 seconds
- Control Centre
does not appear
Edit: Ah, at one stage tonight I had it
not popping up at all in both those situations… but now I can’t work out what I did!
It seems to have something to do with a combination of 1) which TV input is active when the TV powers on, 2) the wake/sleep state of the Apple TV at that time, and 3) whether the Apple TV is woken by a button press or woken by detecting its on the active input.
Need to go through all the combinations again to see which one was the magic trifecta
