Mac OS Automatic graphic switch changes gamma

[Lex79]

Hello,

I calibrated my MacBook Pro 15 2018 with Radeon Vega 20, Mac OS 10.14.5. I created a single curve and a XYZ Lut + Mtx profile with i1 display.  Everything seems fine, I attach the profiles and the reports.

But when I uncheck “Automatic graphics switching” in Mac OS preferences, it seems the gamma changes, the shadows now are more open and the contrast is lower than before. I tried just for curiosity also to switch to the built in profiles like “Adobe RGB, Wide Gamut, ProPhoto etc..) and the same issue happened. There’s just one profile where I don’t have this issue and it’s the “Color LCD” default profile.

Is it a known bug?

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[Florian Höch]

Hi,

did you create the verification reports (which look good) before or after disabling “automatic graphics switching)? If before , you should repeat it afterwards, too, to make sure the profile(s) are still valid.

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