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Issues with resolution Apple TV 4K after TVOS update 14.5

Since I've ungrade my ATV to 14.5 I have had issues with the resolution. It won't appear now through my AV reciever. I've had to use it in another TV and changed it to 576p. I tried this in my reciever but when I try to change back my screen goes black. It was working perfectly before this update. Also the ATV is now stuck on 576p and when I try to change it to any other resolution it gives me an error and stays on 576p. What a nightmare.

Posted on Apr 29, 2021 10:38 AM

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48 replies

May 1, 2021 12:09 AM in response to warrenfromdublin 15

I've spoken to apple support team and they just recommend me to not to do anything from my side. although am relaxed cause my apple tv which I purchased back in 2019 still in warranty till 2022 so they will provide me the service from their side with best resolution. and perhaps beta version will make me face some new bugs so am not taking any risk, am just facing glitches in apple music in tv os

May 1, 2021 12:13 AM in response to Mohit’s432

Ah ok. It's just you can update and then come off the beta and it will reinstall a fresh 14.5 to see if it solves your issue as it could be because of an interuption in the download or it didn't install properly.

ec726

Level 1

4 points

May 3, 2021 6:25 PM in response to warrenfromdublin 15

I am having the same issue with Apple TV connected to a Marantz receiver and is now struck with 576p as the only usable resolution as well.

One more thing, I used to be able to use Dolby ATMOS through the receiver, but not any more after the TVOS 14.5 update. 8-(

May 3, 2021 10:17 PM in response to ec726

Oh really, ok so it's not just me then and indeed it is a bug if you have your ATV running through a reciever.

So after the 14.5 update did the pass through to your Marantz just stop working and you were getting a blank screen?

Then like me you decided to change the resolution in the ATV to see if it displays through your reciever and it didn't?

Then when you did choose another resolution it is stuck on it and the only way around it is a hard reset?

If the above is true then this is what I would propose first to do.

Join the beta channel, update to 14.6 beta 2 and see if it resolves the issue for both the reciever and the bug with the resolution.

If it doesn't then come out of the beta channel and it will Install 14.5 back in for you. Try again to see if you are still have issues with the pass through and resolution and then if so contact support,,explain about the issue, this forum and that you need it replaced.

Unfortunately it's the only way and when you do get a new one just don't update it.

Because many people now a days have gone away from recievers and just using soundbars which do not require pass through etc, this bug has not surfaced with Apple as of yet and to be honest, it could be week or months before they patch it.

It was working flawlessly on 14.4 so they have broken something.

Let me know how you get on?

ec726

Level 1

4 points

May 3, 2021 10:57 PM in response to warrenfromdublin 15

In my case, I used to be using 720P (well...my TV is a really old one) and having Dolby ATMOS passing through my receiver flawlessly with TVOS 14.4.

I remember that my ATV was kind of working at 720P momentarily (say for a couple of days after the update). When I turned on the ATV the other day, however, it prompted me to accept changing to a screen setting that would better fit my location. Unfortunately, I chose to accept the suggestion. The issue then appeared and I was starting to have the "blank screen" issue.

I then managed to use the shortcut "hold Menu and Volume Down for 5 seconds, then release" so that the ATV would switch to a new resolution every 20 seconds allowing me to choose a working resolution which is 576P for now.

Thank you for your suggestions about joining the beta programme, but I would probably wait for a little while and see if the issues could be resolved with a newer release of the OS...

May 3, 2021 11:02 PM in response to ec726

Yep same as myself. Exactly the same thing happened to me as you mentioned above. Stuck on 576p.

14.5.1 is out. Update it and see if it resolves the issue for you. I have yet to recieve mine back and I'm curious if they have patched it on not.

May 4, 2021 12:08 AM in response to ec726

The new 14.5.1 update is not for tvOS unfortunately so the bug remains. Only solution is to ring support and talk to them as I did. They won't entertain the issue with pass through on you reciever but they will with the bug the resolution change. They'll swap it out if it's still in warranty and I've been told not to upgrade until it's fixed. I should be getting my replacement today hopefully.

May 4, 2021 10:01 AM in response to warrenfromdublin 15

Same issue, tried everything, lower res works but won’t refresh, can’t see the app selection moving. I reset, reset and update, tweak TV settings. All no go, it’s either green screen of death or fozen image. Interestingly if I switch my tv back and forth between panoramic and normal view it will refresh the screen. Help Apple!!!!

May 4, 2021 1:48 PM in response to WildWolfMan

Last post deleted.

Anyway. As I was trying to say the bug has been present in all updates 14.2, 14.3 14.5 and beyond that causes an issue when you select 576p and unable to revert back.

There is also an issue with connecting to an AV reciever which will only display the ATV in 1080p 50Hz and not in say 576p or 720p that has been set on the device. My reciever will not let me change it manually it depends on you doing this from the device like 99% of devices

I cannot connect it directly to my TV as everything goes through my reciever.

It's now a very expensive paperweight.

May 9, 2021 1:23 PM in response to warrenfromdublin 15

I have the same issue with 14.5. I ended up having to turn off color enhancements and set the 4K signal format to standard on my Onkyo Receiver. After those changes on the receiver I’m able to set Apple TV resolution to 60hz 4K Std. I cannot get HDR settings to work on Apple TV using signal match or setting to 4K HDR manually.

This was not an issue with tvOS 14.4. We shouldn’t have to dumb down our settings on our receivers to pass 4K signal. Please fix this Apple

May 9, 2021 1:28 PM in response to mdirksen5

Your lucky on my Onkyo no matter what input I put it into it comes up as 1280p even if the ATV is set to 720p within their settings. Very strange. Even if I set it to 720p on the resolution it will still broadcast in 1280p Something wrong. Wa working perfectly on 14.4

May 10, 2021 10:27 PM in response to warrenfromdublin 15

Can everyone please log this with Apple themselves, it seems when I have chatted to support regarding this issue this thread or anything about the bug is non existent and has not been reported or it picked up by them.

May 19, 2021 10:46 PM in response to ec726

Great write up thanks. However after talking to support 5 times now they said there is not enough people reporting to warrant raising the issues of the resolution and pass through which is ridiculous considering it only appeared after updating from 14.4

May 20, 2021 10:24 AM in response to warrenfromdublin 15

Has anyone had this issues resolved yet? Logged it with Apple support now half a dozen times and nothing. Honestly Apple are renowned for fixing one bug and creating another. There is obviously something they did in 14.5 that was not present in 14.4 and needs resolving. Come on Apple. Look into this as soon as possible.

May 24, 2021 12:20 PM in response to warrenfromdublin 15

I was running Apple TV 4k connected to Denon AVR and Sony A8H. I was having the same issue, running tvOS 14.5. Switched to 576p SD and then got stuck there. Unable to change to any other video resolution, even basic 1080 p60 SDR. Tried everything on the Apple TV; rebooted several times, reset video settings, removed AC power and HDMI cable for 20 seconds from back of Apple TV.

Finally solved the issue! Updated software to tvOS 14.6, tried to change video resolution but that did not work. However, when i engaged the “Enable Dolby Vision” button, it went into it usual 25 second test mode and i did get a 4k Dolby Vision signal. I clicked accept/continue button (the top choice - sorry can’t recall the exact word for “yes, i can see the Dolby Vision test screen”) and all was well. Apple TV 4k was back to normal, able to output all flavours of 1080p, 4k SDR and 4K HDR. Bottom line is the Enable Dolby Vision seems to have broken the logic loop and restore normal functions. (tvOS 14.6)

Issues with resolution Apple TV 4K after TVOS update 14.5