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User profile for user: chanwamushi
chanwamushi Author
User level: Level 1
4 points

Updated macbook pro 13" 2017 model and could not adjust brightness afterwards

Hi guys,

Recently updated to Monterey and realised that after the update my macbook is stuck at full brightness and cannot be adjusted from anywhere. Saw a few posts with similar problems to me and was wondering if anyone has found a solution to it.


The display brightness is stuck at maximum as shown in picture and it is greyed out. Any help would be greatly appreciated as the full brightness hurts my eyes.

MacBook Pro 13″, macOS 12.3

Posted on Apr 17, 2022 1:49 AM

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User profile for user: PRP_53
PRP_53
User level: Level 10
91,639 points

Posted on Apr 17, 2022 2:12 AM



1 - Suggest restarting in Safe Mode. This will perform a Disk Repair, clear cache files and only load Apple Software, extensions and fonts. The boot up will be slow and can take some time - Normal.


2 - Does the issue present in this mode ?


3 - If not - there could be something in the main User Account playing up. To further isolate this - Set up users, guests, and groups on Mac. Then log out of the Main User account and log into the dummy account and test again if the issue persists.


4 - If the issue is present in the dummy account - then, this appears to be a System Wide issue on the computer.


5 - if after performing each of the above actions in the order they appear - please advise for possible additional assistance

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User profile for user: PRP_53
PRP_53
User level: Level 10
91,639 points

Apr 17, 2022 2:12 AM in response to chanwamushi



1 - Suggest restarting in Safe Mode. This will perform a Disk Repair, clear cache files and only load Apple Software, extensions and fonts. The boot up will be slow and can take some time - Normal.


2 - Does the issue present in this mode ?


3 - If not - there could be something in the main User Account playing up. To further isolate this - Set up users, guests, and groups on Mac. Then log out of the Main User account and log into the dummy account and test again if the issue persists.


4 - If the issue is present in the dummy account - then, this appears to be a System Wide issue on the computer.


5 - if after performing each of the above actions in the order they appear - please advise for possible additional assistance

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Updated macbook pro 13" 2017 model and could not adjust brightness afterwards

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