Tahoe contrast issue

Bug

Hello,

I recently updated my Macbook pro M3 Max from Sequoia to Tahoe, and I realised that it can of messed up with the gamma (or ICC Profile idk) of the display.

I did comparison with images I know very well, and it really seems that the update create some crushed blacks, like if the gamma were more aggressive at the end scope of the gamma curve.

Second behavior that confirm this theory, if I create a custome XDR profile in P3, this aggressive contrast shift disappear (problem is with this method I just have fixed luminosity). Another weird behavior, if I re-select the general XDR profile, color are fine for like 3 second, and then it's like an ICC profile activate itself and create the weird shift.

Last verification, I checked these images on my iphone, and I don't have these rough crushed blacks, so I'm pretty sure there is a problem.

Is anyone has experienced similar behavior? Is anyone know a solution?

Thanks a lot !

Posted Jul 29, 2026, 1:07 PM UTC

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