Upgrading to Catalina Starts New Monitor Error Message - "This monitor does not support HDR playback"

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Level 10

203,629 points

Upgrading to Catalina Starts New Monitor Error Message - "This monitor does not support HDR playback"

"This monitor does not support HDR playback"

New Error After Catalina Upgrade "This monitor does not support HDR playback"

On my MacBook Pro, I am playing a movie off of TV. When I drag the movie over to the projector, I get an error. This was not happening with Mojave on this MacBook Pro. Downgrading to Mojave, there is no longer this error. Play an SD movie (Not High Definition), and it plays fine on the projector.

Why am I Getting this Error on my Mac?

The item successfully plays on my MacBook Pro in standalone (when the projector is not powered on. My MacBook Pro's screen is High Definition. So, why does it give me this error when I power on the projector? Quitting TV, and then reopening TV, it is fully playable. It's just power on the projector, it pops up once more, and I have to quit TV to get it to play.

Interestingly, It Plays Just Fine on a Virtual Machine.

Dragging the Windows 10 Virtual Machine window over to the projector, I get no error. All is playable on it. Of course, I am using iTunes -- not TV --- on Windows.

The Error Message:

MacBook Pro 15”, macOS 10.15

Posted on Mar 17, 2020 10:15 AM

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Answer 1

TheLittles Author

Level 10

203,629 points

Mar 22, 2020 5:28 PM in response to TheLittles

Reinstalling the macOS Fixed This! All works as it should!

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Answer 2

TheLittles Author

Level 10

203,629 points

Mar 18, 2020 1:37 PM in response to Teddy_B

"4K" Seems to be the Issue here:

Thank you for the link. I gave it a try, and it did not fix my problem. So, researching it "4K",, I came across a cable on Apple's site: Belkin UltraHD 4K/8K HDMI Cable (2m). I purchased it off of Apple, and it is yet to be delivered.

So, being that my projectors are 4K, and my laptop’s specifications state that it will work with 4K accessories, this cable may just fix this. I would be relieved if this cable fixed my problem. I'd most certainly inform the Engineers of the solution. How I am able to project this using my Virtual Machine off the Mac, is a mystery here. My older Mac uses iTunes, as does the Windows Virtual Machine, so the TV app may be the culprit here: It's inoperability with 4K devices.

Contacting the Manufacturer - Brookstone:

Having calling Brookstone, they have nothing to go by, because Brookstone is no longer its own company. These projectors where purchased when Brookstone was its own company and when they had open stores in local malls.

What's Next:

My next goal is to use this cable, and see if it will bring the stronghold down to 4K. I will wait to hear back from the Apple Engineer --- I am told is may be a glitch in iTunes.

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Answer 3

Teddy_B

Community Specialist

Mar 18, 2020 7:18 AM in response to TheLittles

Hello and welcome to Apple Support Communities, TheLittles!

I understand you're seeing a pop-up indicating that HDR playback is not supported when trying to play videos from your MacBook Pro to your projector. I'd be happy to provide information to help you address this.

Give the steps in the following article a try to see if they help address the issue with your projector:

Get help with video issues on external displays connected to your Mac

Let us know the results.

Have a great day!

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