Brightness will not increase after waking from sleep

2024 M3 macbook air - After I put it to "sleep" mode, when I turn it back on, the brightness is super low, and the F1 and F2 keys do not work to adjust the brightness. The only thing that works is restarting my computer. This issue has happened a few times, and I am up to date on the latest software. Any suggestions on how to fix this?

MacBook Air 13″, macOS 14.6

Posted on Aug 27, 2024 03:58 PM

Top-ranking reply

mb314

Level 1

20 points

Posted on Oct 17, 2024 07:22 PM

Try going to the Activity Monitor application. Then searching for brightness in the search bar and then clicking on the corebrightnessd process in the search results (so that it gets highlighted blue). Then using the X icon in the top bar to kill and restart it. That fixed it for me. I am on a Macbook Air with M3 chip on Sonoma 14.7.

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Brightness will not increase after waking from sleep

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