HDMI-CEC is not working with Apple TV 4K

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.

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.

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.

Same problem. Apple executive very comfortably established that all my TVs HDMIs are not working. There is absolutely no problem in the Apple TV or remote. I dont know what to do. Have to keep carrying two remotes now.

Just got a new AT 4K. Was working fine on a Sony TV when connected. After update the remote doesnt work in any TV. HDMI CEC is on. Firestick works fine. When called to customer care no help at all plus very comfortably declared that all devices including HDMIs are faulty but Apple TV is working fine. Do you think for a consumer who is paying 4 times the price for a streaming device, this is acceptable...

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.

Curious to see if that holds true for you. As a lot of us can get it to work fine for a time with the TVs that don't work by restarting HDMI-CEC or toggling Airplay and entirely switching TVs would be a lot like making one of these changes. My LG TV remote went back to not working again even after working completely fine for hours.

I know HDMI-CEC is a bit of a mess but I definitely did not have this problem at all before the 14 update. Even if the issue partially lies with some of the TV manufacturers, to lose the ability to consistently and reliably control this device that used to work totally fine before an OS update is a huge blow.

Exactly. I’ve seen this type of response before when my iPhone stopped working with my car bluetooth. The response from one of the Apple experts on here was ‘your firmware needs updating, not Apple’s fault’.

That doesn’t fly for me. It was working fine, then Apple clearly changed something and then it stopped working. How is that anyone but Apple’s fault?

Oh it’s definite apples issue. Never had a day of problems with any of them. The interesting thing for me none of the 3 Apple 4ktv I have in my home (2 on Sony tv and 1 Samsung)... even though everything is updated at the same time essentially - I can turn items on using Siri remote but when 4ktv goes standby or shuts off it doesn’t turn the TV’s off.

What I found most interesting is that in my office I’ve had a Mac Pro that’s always on, hooked up to the tv... what it’s doing now is it’s literally changing HDMI ports to display what’s on the Mac Pro (and now Mac Mini M1 also) — always on waiting for remote desktop connections it never switched to the pro which it’s not supposed to TV’s no auto hunt for a signal - disabled.. not bad for two weeks of nothing but headaches with your OS’s. I’ve had a problem on every new update from Bug Sur to IPadOS / iOS (lost messages of two years on one device 10/22/18 - 11/23/20 for the contact just gone. But on the iPad Pro can scroll and get all the other messages from iCloud back to December 25th 2010 when my son got his first taste of the ecosystem. On my iPhone it will simply not allow me to bring in a message for the contact prior to 11/23 .. bummed.

Thanks for confirming. I had a feeling that the latest Bravia update was to blame. But, that didn't stop me from doing factory reset on my Bravia. Now I have to spend more time trying to remember all my apps and settings on my TV. Oh well. At least I'll have something to do until midnight, since going out for New Year's Eve isn't going to happen. Hopefully, Sony will get the fix out soon.

Apple team, if you are listening to this discussion..

I have a similar issue. until few days back, i had my fireTV connected to my denon AVR which to the Sony TV. all CEC controls have been working as you would expect.

i plug in the new ATV, that i bought few days back, to the receiver, .... and voila you notice the CEC control is not behaving as expected. The TV and AVR would not shut down when ATV power button is pressed for few sec. Although i think switch on does work fine (but i am hesitant if this will continue to work). i checked softwares/firmwares across sony, ATV as well denon, and everything is latest. Btw, pls note the all the CEC controls for fireTV continues to work fine (I have both these inputs going to my AVR in two ports).

i hope a fix is on its way soon. Apple team hope you are listening.

Unfortunately this doesn’t fix to turn off my LG TV. (But it did turn on though, after all the restarting etc).

Amazon Fire just works - maybe Fire uses good old infrared and Apple relies on HDMI signal

Same problem here, stopped working after update,

no other changes made

I did try that, didn’t work for me. Also rebooted after and still didn’t work.

Can report that switching off Airplay made no difference. Still broken