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please help me fix Brightness Control Nvidia Graphics Only Laptop

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Updated Problem Reporting Files. Under Rehabman's instruction, I added the new _DSM method as an extra SSDT, rather than editing an existing one. Additionally, the PNLF patch provided does not work, though the Clover AddPNLF fix does work (though the slider still does nothing).

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I have Alienware 15R3 7700HQ with GTX1070 and HD630.  Screen is 15" FHD G-SYNC.  Same Hardware as Xela.


Trying to solve the Backlight issue.  I'm using EDID Fix to convince the display that it's internal, and that's it's AppleBacklightDisplay.  But I cannot get backlight slider to show up and cannot adjust brightness.  See attached troubleshooting files and displaymergenub kext.


(this site has issues uploading kexts so I took a screenshot of kexts/other to show which I'm loading.)


A15R3 iMac.zip

patchmatic extract.zip

Screen Shot 2018-05-24 at 1.42.24 PM.png

Terminal Output.txt

Screen Shot 2018-05-24 at 1.42.56 PM.png




Oh, one thing to note, my laptop IS loading AppleBacklight kexts (see Terminal output).  I think this is due to spoofing the display with EDID fixer.

Edited by MacMerlin

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