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And then, lo, as if by magic, the backlight works normally. Both the keys and SysPref>Display. Even fading transitions. Thank you for your help! I seriously appreciate it!

Okay, well then if I understand correctly, the ACPIbacklight is finally removed. Current behavior is 100% backlight with no controls in System Preferences and no keyboard control. This seems to be the same as immediately following installation with the Probook Installer and before the install...

I have tried everything I know of in the realm of removing kexts. The file is not present in S/L/E, I have rebuilt the caches several times, and now booted with the "UseKernelCache=No" It no longer seems to say ACPIbacklight, but your name is still present under AppleIntelPanelA.

You're right, I followed an incorrect procedure for removing the Kext. I believe that I have now succeeded in removing the Kext, and behavior has reverted back to the way it was before, where no brightness slider is present, and the keys have no effect. Attached is a copy of the IOreg and...

I've already done so, but I did it again, and here is the output.

I removed ACPIBacklight.kext from S/L/E, rebuilt the cache, and rebooted. There seems to be no change in behavior, the backlight slider is still present, but has no effect. The keys do the same.

I have gather the 4 pieces of info you requested This zip contains the Patchmatic output, the IOReg, the kextstat output, and the Clover folder from the EFI partition.

I've installed OS X 10.10 Yosemite onto my 8460p according to the stickied Clover guide, using the Probook Installer. Unfortunately, because I like to make things difficult, I have the 8460p with the AMD discreet GPU and the 1600x900 panel. Everything went swimmingly during install, the...

Alright, after having tracked down a real Mac to build a USB disk with, I tried setting up on the ThinkPad an ran into a wall pretty quickly. The installer seems unable to recognize the SATA controller, leaving me stuck for now. I followed the UniHelper instructions including running...

I just recently purchased a Lenovo ThinkPad X230t laptop. It's a part of Lenovo's new line of Ivy Bridge systems. I was wondering whether or not Lion will run on this machine. I've hackintoshed my desktop a few times, but this is my first serious attempt hackintoshing a laptop. My machine is the...