Change brightness mac no keyboard

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Brightness not changing on Macbook Pro Questions about other topics - please check if your question fits better in another category before posting here. Forum rules Before you post please read how to get help.

Post Reply. It will allow me to change it but the brightness won't actually change on the screen and drains my battery quickly.

Any help? Personally I found that the brightness increase is not linear, i.

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How to mark a topic as [solved]. In addition to troubleshooting the USB connection to the displays, you can try clearing the system's PRAM, which contains a number of display-related settings that might interfere with your display configuration.

Change monitor brightness from the keyboard - Mac OS X Hints

With these keys held, wait for the system to automatically reset itself once, and then release the keys and allow the system to boot normally the system will continually reset itself as long as the keys are held down. Resetting the PRAM is a fairly routine step to take when troubleshooting hardware compatibility in OS X, and will not adversely affect your computer. At most you will need to change system volume levels, mouse pointer speeds, display resolutions, and similar settings.

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Adjust the brightness of your backlit keyboard

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