Differences between XDR & MBP Displays

[dougnash]

I have an XDR Pro hooked up to an M1 Ultra. I also have a M4 MBP.
They are both set to (?) the same setting: Pro Display XDR (P3-1600nits) - yet they don't seem to behave the same.
I realize, obviously, they are different beasts. But the MBP will display bright HDR tones from the same (for instance) OpenEXR files I create; whereas, the Pro XDR display will not.

Am I missing some fundamental setting(s) beyond what I mentioned, which would result in these dramatically different views of the same material?

Thank you.

 

[dougnash]

Anyone have experience trying to match these two displays?

 

[fpenta]

Anyone have experience trying to match these two displays?

I calibrated both displays with Calibrate Display Plus HL and now they perfectly match. Before calibration the XDR had a flatter contrast curve (not sure if it's always been like this or it changed over time, since I bought a refurbished unit).

Please not that to keep the new calibrated ICC you will need to use this app since eveytime you log in, or restart or disconnect the display the ICC is going to reset, this little app is avoiding this. It's a Mac OS bug

GitHub - son01490517/DisplayColorSyncApp

Contribute to son01490517/DisplayColorSyncApp development by creating an account on GitHub.

github.com

 

[dougnash]

Thanks, fpenta. I may, indeed, look into doing that. However, it feels like it might be more of a difference than just subtle calibration. With the new MBP, it's definitely displaying HDR levels - immediately obvious. Whereas, with my XDR Pro, it does not. I can view HDR content with that display, so I know that works. It's just that it's not seemingly being "triggered" to display like the MBP seems to.

 

[fpenta]

Thanks, fpenta. I may, indeed, look into doing that. However, it feels like it might be more of a difference than just subtle calibration. With the new MBP, it's definitely displaying HDR levels - immediately obvious. Whereas, with my XDR Pro, it does not. I can view HDR content with that display, so I know that works. It's just that it's not seemingly being "triggered" to display like the MBP seems to.

I think that's just an optical illusion..I have tested the MBP brightness in SDR and it goes up to just 320 nits (instead of 500 declared), while the XDR goes up to 430. Maybe for this reason it seems more obvious when the MBP screen is triggered to HDR, being more brightness difference between the SDR and HDR.