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I install successfully OSX 10.10.1 on my HP laptop

All parts works, but there is a problem, I can't control the brightness of monitor of my laptop

The video card intel 4400 HD is install and system see 1.5 gb of NVRam

How can I solve this problem about brightness?


It's important for the battery and for my eyes  :(

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I have the same problem.  acer haswell.  Everything besides brightness is working.  I've tried a whole bunch of stuff


I solve it, follow this simple steps:

install backlight.kext

enable it on chameleon.boot.plist


Install from Apple store Brightness Slider


With this app you can control brightness and set the buttons to up/down brightness :D

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Hi, I have a Lenovo b590 laptop and I installed the brightness slider app. Works fine for me.

Previously I marked option "intel graphics patch for combined options" in MULTIBEAST, drivers, graphics.

I'm noob in this and I thank you all to make this possible :)

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