Keyboard Brightness Buttons Not Working

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Level 1

4 points

Keyboard Brightness Buttons Not Working

I have a macbookpro. I noticed recently that the keyboard brightness buttons (up and down) were not working. When I push either one of them the brightness image comes up with a small circle with a line through it (as in like no smoking)? I can change the brightness setting in System Preferences / Display. Any ideas why this situation would occur and how to change it so that I can use the keyboard controls? It is inconvenient not to be able to adjust the brightness from the keyboard. Thank you in advance for your assistance. MACarmel.

Macbookpro, Mac OS X (10.6.2)

Posted on Apr 22, 2010 5:51 PM

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Answer 1

eww

Level 9

53,028 points

Apr 22, 2010 6:09 PM in response to MACarmel

Use your left thumb to cover the iSight camera lens in the top of your display bezel. This will also cover the ambient light sensor that is 5mm to the left of the camera. With the sensor covered, can you adjust the brightness of your keyboard using the F5 and F6 keys? If so, the problem is simply that the ambient light level in your room is higher than the threshold at which the keyboard backlighting is turned off automatically. Your MBP thinks you don't need the backlighting on.

You can override the automatic backlighting control by using Lab Tick.

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Answer 2

sdschramm

Level 3

524 points

Apr 23, 2010 7:44 AM in response to MACarmel

Please search before posting.
This question is asked and answered at least twice a day.

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Answer 3

mag7793

Level 1

0 points

Apr 26, 2010 5:45 PM in response to MACarmel

i am having the same problem since yesterday, my keyboard has no light even i in a dark room.
the ambient light sensor seems not working.
i am not sure if it caused by 10.6.3 update.

Now i am temporary using labtick to manually turn on the keyboard light.

Anyone found the solution for the problem?

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