With my 4K Apple TV device HDMI plugged into my receiver, all CEC actions fail for all devices. I can plug in my older HD Apple TV and all is happy. Or removing the 4K device resolves the issue as well. I've just updated the 4K to tvOS 14 with same symptoms.
Anyone else experience this? I think the device itself has failed.
Cheers.
Apple TV 4K, tvOS 14
I had the exact same problem with TvOS 14.2 however I have had this problem in the past and for me I solved it the same way I did last time. It seems to be some form of issue if the ATV gets automatically updated while the TV is in standby mode. The solution is to put the apple TV into standby mode then put the TV into standby and unplug the cable to the TV wait for 10 seconds put the cable back in then turn on the Apple TV then my Apple TV is able to control the TV both on and off again. Not sure how CEC works exactly maybe it sends its command capabilities or something on start up so when the TV is powered on the Apple TV gets information about the TV or something. So my suggestion try unplugging and plugging stuff in again until it works it did for me at least.
Is this with the tvOS 14 release... or 14.2 beta?
I've got a HDMI 2.0 cable and CEC has stopped working after the update. So shall I try HDMI 2.1 cable then?
Same issue and 4K is no longer an option for my 4K TV that was working just fine for years.
Same here. Just updated to 14.2 ( non-beta) and the problem remains. Tv not switching on/off.
Yup. No luck w Airplay disabled.
Didn’t make a difference (and I don’t see why it would).
So, disabling AirPlay didn’t work here either.
Anyone else have any more ideas?
What is your TVOS version?
I have the same issue.
Remote control is working fine with the TV and viceversa, but now I cannot power on my TV when I start my Apple TV 4K.
And no luck with arplay disabled
Ok.
Thanks for the steps...but how do you turn off CEC on Apple Tv?
Definitely not for me. This is actually using Siri remote to put into sleep mode..
From Apple or Sony? Lol
I turn off the CEC on my tv and on my Apple TV I still get the option to have it on and off it doesn’t disable it for me.
Thanks for sharing.. Unfortunately, it does not work yet.
Yesterday Apple care people had called. they gathered some information. i hope i will see some success soon.
HDMI-CEC is not working with Apple TV 4K
