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After updating my iMac (Retina 5K, 27-inch, Late 2015), i can't change the luminosity of the integrated screen. The bar of the luminosity is deactivated. This also happens to my colleagues with an external screen.
luminosity bar deactivated:
luminosity bar not exists:
iMac 27″, macOS 12.0
I am seeing a similar issue, running 11.0.1. After the Big Sur update, the screen begins to automatically adjust brightness settings *even when* the "automatically adjust brightness" setting is turned off. Brightness is always low. Restart does not seem to help. Is this a bug? No matter what the brightness setting, the system always auto-adjusts. (I do have Night Shift turned on; not sure that matters
thank you very much, the first article worked for my mac :)
You're welcome.
Monterey luminosity problem
