HELP! How to FIX the brightness problem. ( NVS 3100M HP EliteBook 8440p)

[seii]

I've installed OS X EI Capitan(10.11) successfully! But I don't know how to fixed the brightness problem. The screen is too Bright. Can anybody HELP ME with it ??

 

Files include : Original : DSDT + SSDT + NVS3100M ROM

Patched By Myself (worked except brightness and audio): DSDT

 

THANKS VERY MUCH!!

 

Here is the information of my laptop:

 

System Manufacturer: Hewlett-Packard

System Model: HP EliteBook 8440p

BIOS: Default System BIOS

Processor: Intel® Core i7 CPU Q 840 @ 1.87GHz (8 CPUs), ~1.9GHz

Memory: 8192MB RAM

Available OS Memory: 8120MB RAM

Page File: 1975MB used, 14261MB available

 

Display Devices

---------------

Card name: NVIDIA NVS 3100M

Manufacturer: NVIDIA

Chip type: NVS 3100M

DAC type: Integrated RAMDAC

Display Memory: 4050 MB

Dedicated Memory: 466 MB

Shared Memory: 3583 MB

Current Mode: 1366 x 768 (32 bit) (60Hz)

Monitor Model: unknown

Monitor Id: AUO143C

Native Mode: 1366 x 768(p) (60.098Hz)

Output Type: Internal

Driver File Version: 9.18.0013.0783 (English)

Driver Version: 9.18.13.783

DDI Version: 10.1

Driver Model: WDDM 1.1

Driver Attributes: Final Retail

Driver Date/Size: 1/31/2013 05:27:28, 18376008 bytes

Device Identifier: {D7B71E3E-492C-11CF-8370-26371FC2C435}

Vendor ID: 0x10DE

Device ID: 0x0A6C

SubSys ID: 0x172B103C

Revision ID: 0x00A2

 

Sound Devices

-------------

Description: IDT High Definition Audio CODEC

[sudo_dudo]

This is a common problem of osx. Many including me find that the screen even at its lowest brightness is too bright to work in dark environment. Use apps like screen shade. They produce a dark overlay over the screen to help relieve strain on eyes. 

[seii]

THANK YOU ! O(∩_∩)O I had fixed it by using GenericBacklight.kext and adding PNLF to my DSDT.

[Jamarita]

Hi, is possible share the efi folder ,please? thanks