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.
Same problems for me in July 2021. Spent 2 hours on phone with customer support and they couldn’t fix it. Come on Apple! Fix the problem… super disappointing
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!
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.
Tier 1 Support passed me up to Tier two.. They had me hard reset the Siri remote, the Apple 4K, everything. They had me make a video to show them what was happening that not only did it not shut down the tv’s it was switching HDMI on it where the Mac was (and was disconnected) - then they had me do a full diag and they marked the time where I showed putting into sleep mode, etc.. Downloaded the full logs (after hard reset) - they sent me a link to upload the videos as well as the diag file to.. told me they will send it up the chain (uh huh) but tier 2 said they’d call me back in 4 days.. Definitely a 14.x issue.. this has never happened in any Gen to me from Apple TV.. we shall see..
Sorry. I meant to say the Sony Update is the problem. I’m using Siri Remote as well on tvOS 14.3. Everything works on one Sony TV (with older firmware) but doesn’t with the other Sony TV (which had the newest firmware update)
On my side when I turn off the Air Play : it only works to turn power off my TV but not to turn it power on.
@max_relax
none the problem comes from tvos14
The CEC- function seems not to work with Apple-TV 4K. Unfortunately the software update 14.2 did not resolve the issue.
It should. I’m using a sound bar so it is controlling that instead.
HDMI-CEC is not working with Apple TV 4K
