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Hi
I updated to 11.3 yesterday and all the brightness controls either vanished or stopped working. No option to do that in system preferences, it is greyed out in the control centre and the touch bar brightness doesn't change.
The brightness is stuck at max. I have tried resetting the SMC and the PRAM and NVRAM. Did not work.
Is anyone else facing this problem? Any idea what to do? Thanks
MacBook Pro 13″, macOS 11.3
Go step by step and test:
Reset PRAM: Reset NVRAM or PRAM on your Mac - Apple Support
Settings that can be stored in NVRAM include sound volume, display resolution, startup-disk selection, time zone, and recent kernel panic information. The settings stored in NVRAM depend on your Mac and the devices that you're using with your Mac.
Reset SMC: How to reset the SMC of your Mac - Apple Support Choose the appropriate method.
Quote:
Resetting the system management controller (SMC) can resolve certain issues related to power, battery, fans, and other features.
Startup in Safe mode. https://support.apple.com/en-gb/HT201262
To leave Safe Mode, click in the menu bar and choose “Restart”
Quote:
Safe mode prevents your Mac from loading certain software when it starts up, including login items, system extensions not required by macOS, and fonts not installed by macOS. It also does a basic check of your startup disk, similar to using First Aid in Disk Utility. And it deletes some system caches, including font caches and the kernel cache, which will be created again automatically as needed.
Reinstall macOS:https://support.apple.com/en-us/HT204904
Go step by step and test:
Reset PRAM: Reset NVRAM or PRAM on your Mac - Apple Support
Settings that can be stored in NVRAM include sound volume, display resolution, startup-disk selection, time zone, and recent kernel panic information. The settings stored in NVRAM depend on your Mac and the devices that you're using with your Mac.
Reset SMC: How to reset the SMC of your Mac - Apple Support Choose the appropriate method.
Quote:
Resetting the system management controller (SMC) can resolve certain issues related to power, battery, fans, and other features.
Startup in Safe mode. https://support.apple.com/en-gb/HT201262
To leave Safe Mode, click in the menu bar and choose “Restart”
Quote:
Safe mode prevents your Mac from loading certain software when it starts up, including login items, system extensions not required by macOS, and fonts not installed by macOS. It also does a basic check of your startup disk, similar to using First Aid in Disk Utility. And it deletes some system caches, including font caches and the kernel cache, which will be created again automatically as needed.
Reinstall macOS:https://support.apple.com/en-us/HT204904
Thanks. Did not work. I contacted Apple Support too. They asked me to reinstall mac OS. Did that too. Did not work.
Brightness Option vanished after updating to 11.3 from 11.2
