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macOS goes into Lock Screen then brightness reset

Arcade

Arcade

macrumors 6502
Original poster
Oct 1, 2012
411
213
Bronx, NY
My iMac when it goes into the Lock Screen then when I log back in the brightness is back at default settings. It kinda look like my Mac restarts itself but is not actually restarting because I don't see the apple logo. This started happening when I upgraded Big Sur 11.5 and it continues now on 11.5.1

Does anyone have an idea as to what is going on and how I can fix it?
 
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