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Yea, it’s a weird issue. Also, it’s worth noting that I have a second monitor connected as well (it’s a 1080p 144Hz one without HDR)

I was able to get HDR to work on YT by using Chrome. But it was rendering it on my CPU instead of the GPU. And I kinda only want to use Safari so it’s not very useful to me either way lol.

You most likely have some custom user agent active in that menu which is what fixes the HDR issue for you

Well I always had the dev menu enabled because as a web developer myself, I do use it. So yea, still no YT HDR

Also, from what I understand, WiFi is going to be an issue if I update to Sonoma as it dropped support for most Broadcom cards (including the one I have) Disabling SiP to get WiFi working isn’t ideal

1. Last time I checked, the RX6600XT doesn’t have a USB-C port 2. Enabling the dev menu on its own isn’t going to do a thing, you still need to select an appropriate user agent (which I already tried and didn’t change a thing, unless you added something custom)

On macOS, yea for whatever reason

Running the latest macOS Ventura atm, planning on upgrading to Sonoma at some point tho. Also I have the latest Safari 17 and tried to change the useragent to the built in Chrome one for both macOS and Windows, didn’t change a thing.

Also, YouTube doesn’t show HDR while using Safari for whatever reason

I tried it on a Windows 11 PC and was able to get HDR to work while having the monitor on 300Hz. I’m not the only person who has issues with HDR not showing up for higher refresh rates on macOS tho (found a couple discussions about it on Reddit without a fix)

Also, I was able to enable 300Hz on Linux out of the box with no issues. As for macOS, I tried to use the `-igfxmpc` arg which didn't change a thing (saw that it was for Intel GPUs but wanted to try it either way)

ok, apparently I need to be on 60-200Hz to be able to use HDR... (anything higher won't work) seems like a macOS issue though

I tried this monitor on my iPad and its showing HDR

I also tried resetting the monitor & unplugging it but nothing changed

I checked ASUS's documentation and it has nothing about port/mode specific stuff Other than the fact that HDMI can't do over 144Hz, but I'm connected over DP anyways

I recently got myself an ASUS XG27AQMR 1440p HDR monitor. After plugging it in and booting into macOS, I’ve noticed that the HDR setting on the monitor’s OSD is grayed out and that the macOS display settings don’t display anything related to HDR. The display support HDR10 at 600nits (VESA...

Alright

I'd still prefer to see a fully working config instead of just a guide...

ye, I know, just want to compare the other OpenCore settings & kexts Not going to copy paste the entire thing obviously