How to get brightness working on HP Spectre

[LaughingQuoll]

I have been looking around for guides to get my screen brightness settings working on my laptop: http://www8.hp.com/h20195/v2/GetPDF.aspx/4AA5-4953EEE.pdf

But nothing is helpful. I have tried Intel Backlight.kext which did nothing. What can I do to get brightness working.

El Cap 10.11.4

 

[RehabMan]

I have been looking around for guides to get my screen brightness settings working on my laptop: http://www8.hp.com/h20195/v2/GetPDF.aspx/4AA5-4953EEE.pdf

But nothing is helpful. I have tried Intel Backlight.kext which did nothing. What can I do to get brightness working.

El Cap 10.11.4

http://www.tonymacx86.com/threads/guide-patching-dsdt-ssdt-for-laptop-backlight-control.152659/