HDMI-CEC is not working with Apple TV 4K

Ever since I upgraded to the TVOS 14 my CEC stopped working. Exact same cables exact same tv and nothing. I even checked for a newer update and there was one but yet it still doesn’t work. I am currently on 14.0.2 and it’s been happening ever since I upgraded to 14

Thank you, I tried to disable airplay, but the problem remains.

However, when I connected Apple-TV to my LG OLED TV (C9) the CEC works.

But this is not the configuration I want. I want to connect Apple-TV to my Onkyo NR-656 receiver.

My preferred configuration ( Apple-TV->Onkyo->LG OLED ) worked well with CEC until recently.

Hi,

Same problem from few days ! Impossible to power on my TV or power off when I start or off my Apple TV 4K.

yet it used to work very well before.

I think it's coming since the upgrade to tvOS 14.

Upgrading to 14.0.1 does not solve the problem.

I solved the problem by disabling CEC on my tv and then re-enabling it. Also appleTV reflects this in the settings - previously it was not possible to enable/toggle CEC at all.

Then put all devices into Standby and wake up AppleTV with the remote.

Hello Rmcewin,

It sounds like following your update to tvOS 14 your 4K Apple TV gives you an error and all CEC actions fail for all devices.

You may want to start by taking a look at the information in: Control your TV or receiver with your Siri Remote or Apple TV Remote. Specifically the section titled "Make sure that HDMI-CEC is on" at the bottom of the article.

We appreciate you reaching out to Apple Support Communities. Please feel free to keep us updated on your progress. Be well!

What i did:

1. turn off CEC on TV
2. turn on CEC on TV
3. AppleTV, turn CEC off and back on
4. turn off Appletv and all other peripherals using CEC or ARC
5. wake up AppleTv - which wakes up everything else now (again)

in german it is

Einstellungen/Fernbedienungen und Geräte/Tv Geräte und Empfänger steuern

in english i suppose settings/remote control and devices/control TV and recievers

this menu entry also gets disabled when you torn off CEC on your TV

I found this and it fixed the problem:

https://www.trustedreviews.com/how-to/hdmi-arc-and-cec-not-working-try-these-fixes-4041394

This is almost certainly not a device fail.

I experienced the same exact problem here, and I am CONVINCED it's a tvOS 14 issue.

How do I know ?

I have had the combination Sony STR-DN1080 amp, Philips (and Samsung TV) and the HD version of AppleTV for quite a while, and CEC never worked for me, resulting in me disabling it and living with two/three remotes.

I always thought the issue was with the Sony, since there were lots of complaints online about a"non-compliant" CEC implementation from Sony....and you know, it's Sony....

However, to my surprise, when I upgraded to the 4K AppleTV, and (for fun) tried to turn HDMI-CEC on again, it suddenly worked flawlessly! I could switch on and off the TV, amp and AppleTV with one action (using just the Apple remote). I tried switching back to the HD AppleTV and it was broken again.

All right, I guessed whatever issue that was, had been resolved with the newer hardware of the 4K or something.

Now the funny part.....I moved my "old" Apple TV to another TV/amp combo (Onkyo amp and Grundig TV) and set up HDMI-CEC. One remote - worked! Huh? Maybe the issue was with the Sony after all? Oh, well.

So I lived the good life for almost a year, then one day Apple pushed out the tvOS 14 update.

Once both AppleTVs were upgraded to tvOS 14 - HDMI-CEC was broken.....again....and now in BOTH setups. WTH?!?

Specifically, although I could wake the AppleTV/amp from sleep using the Apple remote, both TVs refused to switch off once the Apple TV (4K + HD) went to sleep.

This is clearly a tvOS 14 bug that I hope Apple can get fixed ASAP.

Very annoying!

I’m curious if this issue is only with the beta release of tvOS 14.2, or if this is affecting people with tvOS 14 release as well.

The reason I ask is that I had the beta profile installed on my Apple TV 4K, and when the release came out I *think* I remember CEC was working ok then, but then another beta update came out at some point and now I’m in the same boat as the rest of you. I talked with an Apple support person the other day and they blamed the broken CEC on the beta and had me remove the beta profile. The only thing I can do now is to wait for another official release as there’s no way to downgrade.

I know beta talk is prohibited here, but hopefully this post will be allowed as its to clarify if this issue affects the release version or not.

Hmmm. You could be on to something. I am currently on running beta versions on both my AppleTVs, but that was the case also on tvOS 13 without it interfering with CEC functionality. I will try to remove it and wait for the next official update.

DId you try to disable AirPlay, like someone suggested earlier? I haven't had time to try that yet, but will report back on whether it makes a difference.

I had to bust out all the HDMI cables and purchase new ones.. I was able finagle my HDMI cords to a configuration which worked. This was stupid because the configuration worked prior to the update, but I had to purchase new ones to get the CEC to work again..

So, yes.. I got it working again.. but fail on apple part for making me spend even more

My issue is different, updated 4rth. gen device with TVIOS 14.02 and now some apps no longer viewable, displayng black screen or my HDMI CABLES do not support DHCP encryption. Disney +, Amazon Prime and Spectrum TV app. I'm constantly restarting device to clear the errors.

AT4K’s CEC has always been broken with my TV LG Oled C9. I turned off all CEC features on Apple TV. But still when I change input on my TV to my Receiver it triggers AT4K to power on and changes to its input on my receiver.

so annoying.

Apple TV goes to Denon AVR and to LG TV.

ios 14.02

I’ve got the same problem with a Panasonic Viera. ATV4k HDMI-CEC was working perfectly but has now stopped working. The Google Chromecast and Xbox I’ve got plugged into the same TV can activate the HDMI-CEC no problem.

This is an Apple problem to solve.