laptop screen keeps dimming and brightening

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MacBook Air :: My Laptop Screen Keeps Dimming And Brightening By Itself.(like when you press cmd + or -) And it's always zooming in, never out.ĭoes anyone know what is going on with this? I don't know if the two things are related or if all of this is just really really stupid user error.

Then all of a sudden (*insert poltergeist*) the website zooms in or out. All of a sudden, all of the folders resize drastically. (I suspect this may be me doing some trackpad trick I'm unaware of but I've tried everything I can think of to replicate it and nothing works) Anyways, say I'm on my desktop and mousing over (with one finger) to open a folder or file. My other problem is that my screen is randomly resizing/zooming in on things. I've even tried pressing my thumb over the light sensor really fast to see if it was the light sensor but try that and you'll see that it's actually really slow. And it has occured about once or twice a day for the last few days. This occurs randomly in different light settings but most importantly when the light around me hasn't changed at all. My problem is that I'm experiencing random flashes of the screen where it dims quite a bit rapidly but only for a short moment before returning to the original brightness. And since the light sensor has moved to the microphone, it still does that just fine. I have my preferences set to adjust the brightness based on ambient light. Now, I'm having an issue with my new MBP.

(I loved hovering my hands over the speakers. My previous MBP had the ambient light sensor that I could turn on and off via the system preferences (as mentioned in this thread) so suffice it to say, I know what it looks like when the screen dims and brightens. I just got a brand new MBP (6,2 and 10.6.4) but it's not my first. MacBook Pro :: Screen Is Dimming And Brightening Quickly? Aug 26, 2010

Laptop screen keeps dimming and brightening