Anyone else having trouble with HDR in macOS 12.3.1? The option disappeared in display settings.

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Anyone else having trouble with HDR in macOS 12.3.1? The option disappeared in display settings.

I have an HDR monitor (Asus PA32UCX) that was working fine on 12.3 and works fine in all prior versions of macOS that I have tried, but with the update to 12.3.1 it no longer works. Anyone else have this happen? The same monitor and cable work correctly in HDR in Big Sur and Monterey 12.3 on the same Mac, and work with a Windows laptop as well (cable would not matter but since support suggested it I will mention it).

Apple support is suggesting I go back to 12.3 but wasn't there a major security flaw fixed in 12.3.1?

Mac mini 2018 or later

Posted on Apr 2, 2022 11:02 AM

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Answer 1

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VikingOSX

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116,153 points

Apr 2, 2022 11:15 AM in response to idjwert

Power off your Asus display and your Mac. Disconnect the HDMI cable from your Mac, then reconnect it. Power on the Asus and then your Mac. Any change in seeing an HDR selection again in Displays?

Failing that, boot your Mac into Safe Boot mode, and follow that with a normal reboot. Any change?

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Answer 2

idjwert Author

Level 1

15 points

Apr 2, 2022 11:16 AM in response to VikingOSX

It's connected by Thunderbolt. I have powered the monitor off, reconnected it, tried it on an older version of macOS on the same mac (it worked), tried it on a Windows laptop (it worked). It's definitely 12.3.1 that breaks or removes HDR support for me.

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Answer 3

idjwert Author

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15 points

Apr 2, 2022 11:17 AM in response to Mal-S

I have tried safe mode. That doesn't fix it. I have also tried an older version of macOS on the same Mac (Big Sur) and that does fix it, but once updating that older version to 12.3.1 the HDR stops working.

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Answer 4

Mal-S

Level 5

4,972 points

Apr 2, 2022 11:15 AM in response to idjwert

As I don't have the same hardware as you I can't try this myself but here's a few things to try.

Restart in safe mode followed by a normal restart
Try resetting the SMC two or three times

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Answer 5

Apr 2, 2022 11:50 AM in response to idjwert

That display also has 3 HDMI 2.0 ports too. Try an HDMI 2.x cable that supports Dolby Vision and HDR and see if your HDR setting returns to your Displays panel.

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