Trouble with HDMI-CEC

[Sakurambo-kun]

I a few devices connected to my Pioneer AV receiver, a Sony UHD bluray player, a PS4 Pro, a Switch, and an Apple TV 4K (which I've just upgraded to from an ATV 4).

I use HDMI-CEC to turn on my TV and receiver at the same time as whatever device I'm using. All of them work fine, except the Apple TV. It sometimes works, perhaps one of of every 10 times I use it. Mostly though it doesn't work and I have to manually turn everything on. When I go into the settings screen of the Apple TV when HDMI-CEC hasn't worked, I see that HDMI-CEC is off and it won't let me turn it on. Both my 4K ATV and my previous ATV 4 had exactly the same issue.

Not a huge deal, but kind of annoying. I thought it could be some odd incompatibility with my receiver, but even plugging the ATV directly into my TV (LG B7) made no difference.

Had anyone else had any issues?

 

[Donfor39]

I find Apple t.v. Takes a while to boot from power on.
HDMI-CEC is working via Sky-hdmi1+ap4ktv-hdmi2.
If I press the tv symbol button via siri remote it does switch on aptv+t.v. Switches to hdmi2 aka ap4ktv.
I find it seasier to sleep ap tv if I want to press Sky button to switch to hdmi1. Aka Sky.
Can’t say I’ve had any probs other than initial power on.
Though I think that’s more Sony t.v related rather than hdmi cec.

 

[priitv8]

I have everything Sony, except aTV 4K and Arris IPTV box.
My aTV loses CEC as well every now and then.
Then I need to reboot it to get CEC back for undetermined time.
I am still unsure if its aTV or Arris, but one of them has problems with CEC protocol.
I have an impression that iOS 11 made things worse, not better.

 

[Lammers]

My Apple TV 4th-gen was flawless in the HDMI-CEC department, but the new 4K has been very troublesome. It seems to regularly revert back to control being “Off” and I need to restart the 4K ATV in order to restore the functionality. :-(

 

[borrachomoe]

My Apple TV 4th-gen was flawless in the HDMI-CEC department, but the new 4K has been very troublesome. It seems to regularly revert back to control being “Off” and I need to restart the 4K ATV in order to restore the functionality. :-(

I have the exact same issue. Apple TV 4th-gen worked perfectly with HDMI-CEC but the new 4K has trouble. 4K ATV reverts back to “off” almost every time after using it. I have to reset the ATV via settings or unplug and plug back the phone charging cable for it to work.

 

[Videoman123]

Same trouble here. Worked fine with ATV4.

 

[Lammers]

Anyone tried the latest tvOS betas to see if that helps?

 

[Donfor39]

Anyone tried the latest tvOS betas to see if that helps?

My earlier reply was since 11.1 tvos beta.

 

[borrachomoe]

Has anybody tried taking the ATV 4K back to the Apple Store and getting it fix or a replacement?

 

[malcbo]

Hi all,

Did the recently released toOS 11.2 solve the HDMI CEC issues wit the Apple TV 4K?

 

[Donfor39]

What’s with the black screen via 11.2

Slightly annoying for a few secs

 

[Sakurambo-kun]

What’s with the black screen via 11.2

Slightly annoying for a few secs

Do you have Match content enabled? If you do, your TV will be switching modes to match the frame rate and dynamic range of the content. That will black the screen for a few seconds.

 

[priitv8]

What’s with the black screen via 11.2
Slightly annoying for a few secs

As Sakurambo-kun mentioned, it must be because of the dynamic switching has been enabled.
Now you see why Apple called this thing "inelegant" in their keynote.
Here, only a faster-reacting (ie faster-processing) screen will help.

 

[borrachomoe]

Hi all,

Did the recently released toOS 11.2 solve the HDMI CEC issues wit the Apple TV 4K?

11.1 actually fixed it for me.