Hacker News Reader

Comment by radicality | Hacker News Reader

Any potential dangers with using it on a Pro Display XDR? Wouldn’t want to ruin that screen, but I do have a very sun-lit room and one of the reasons I got the monitor was it’s sustained 1k nit brightness (and only afterwards realised that it tops out at 500 nits and anything above is XDR only…) definitely going to try this though!

View on HN

The Pro Display XDR has active cooling (fans) and huge heatsinks so I’d say it’s probably created with this use case in mind.

It’s not uncommon for creators to work on HDR content all day long where the nits are not limited.

Perhaps the author of this tool is not aware of this, but the XDR Pro Display offers native 1600 nits mode.

Apple shows this on the product page, and it is selectable in the System Preferences -> Displays panel.

It is not the default setting, but it is what I run most of the time.

https://www.apple.com/pro-display-xdr/specs/

This isn't true — the native 1600 nits mode only uses 1600 nits for HDR content. Regular content/OS UI/etc is still limited to much less brightness.

Check out this HDR YouTube video at this timestamp to see how bright white actually is at 1600 nits:

https://youtu.be/NlAsAuBtmps?t=180

Here's a photo of my XDR display with a pure white rectangle in Figma next to white content in an HDR video, with the display set to the 1600 nits mode:

https://www.dropbox.com/s/rmvu6r6vugaxg95/xdr-brightness-com...

Huh, I was not aware of that. I will take a closer look.

Reply on news.ycombinator.com