[Guide] Laptop backlight control using AppleBacklightFixup.kext

[Cecemel]

Yeah, probably built-in support for that keyboard. Brightness keys on the laptop will require appropriate ACPI patching.

Maybe there is a display override for that monitor (0x9c7c) or a color profile. Color profile can be changed in SysPrefs->Displays. And a display override could be deleted or replaced.

No.

Changed color profile and it looks fine now.

 

[mhk]

Your ioreg shows ACPIBacklight.kext installed. As per post #1, ACPIBacklight.kext and IntelBacklight.kext cannot be used since 10.12.4.

Read post #1.

Thanks for your reply.
I check kexts and generate new zip because still no effect. Elier in HS I just add "backlight" in DSDT and just run excellent. After update from beta backlight gone but Jmicron SDcard reader start work and I do nothing to run it. Just start and work great.
Maybe I just something mess up when I repair backlight.
I'll be grateful if you look on this one more time.

 

[RehabMan]

Thanks for your reply.
I check kexts and generate new zip because still no effect. Elier in HS I just add "backlight" in DSDT and just run excellent. After update from beta backlight gone but Jmicron SDcard reader start work and I do nothing to run it. Just start and work great.
Maybe I just something mess up when I repair backlight.
I'll be grateful if you look on this one more time.

Your kextcache shows ACPIBacklight.kext installed. Plain as day:

Kext with invalid signatured (-67062) allowed: <OSKext 0x7faea6abe8a0 [0x7fffa8f208e0]> { URL = "ACPIBacklight.kext/ -- file:///System/Library/Extensions/", ID = "com.darwin.driver.ACPIBacklight" }

Follow Probook guide as written:
https://www.tonymacx86.com/threads/...book-zbook-using-clover-uefi-hotpatch.261719/

 

[mhk]

Your kextcache shows ACPIBacklight.kext installed. Plain as day:

Kext with invalid signatured (-67062) allowed: <OSKext 0x7faea6abe8a0 [0x7fffa8f208e0]> { URL = "ACPIBacklight.kext/ -- file:///System/Library/Extensions/", ID = "com.darwin.driver.ACPIBacklight" }

Follow Probook guide as written:
https://www.tonymacx86.com/threads/...book-zbook-using-clover-uefi-hotpatch.261719/

Sorry I don't no why I don't delete this
Ok. Last chance for me.
I'm learning everything from the scratch.

Slider gone this time.

 

[RehabMan]

Sorry I don't no why I don't delete this
Ok. Last chance for me.
I'm learning everything from the scratch.

Slider gone this time.

Your posts here are off-topic.
Your laptop has a guide you should follow:
https://www.tonymacx86.com/threads/...book-zbook-using-clover-uefi-hotpatch.261719/

You did not follow it.

Plan on running the macOS installer to restore all your Apple provided kexts to original (because I think you deleted or corrupted one or more of them).

 

[Cecemel]

Yeah, probably built-in support for that keyboard. Brightness keys on the laptop will require appropriate ACPI patching.

Maybe there is a display override for that monitor (0x9c7c) or a color profile. Color profile can be changed in SysPrefs->Displays. And a display override could be deleted or replaced.

No.

It stopped working.. My laptop was on, I went away for some time, when I came back, Windows was running (so macOS probably crashed and laptop restarted). I tried booting Mojave, got stuck, powered it down. Tried booting again (verbose on) but this time booted fine although backlight control wasn't working anymore.. Rebooting didn't fix it.

 

[RehabMan]

It stopped working.. My laptop was on, I went away for some time, when I came back, Windows was running (so macOS probably crashed and laptop restarted). I tried booting Mojave, got stuck, powered it down. Tried booting again (verbose on) but this time booted fine although backlight control wasn't working anymore.. Rebooting didn't fix it.

What do you see in SysPrefs->Displays?

 

[Cecemel]

What do you see in SysPrefs->Displays?

Alright, just booted Mojave and it’s working again (both the slider and keys). Even though I rebooted multiple times and nothing happened (also nothing in sysprefs). Weird stuff..

 

[RehabMan]

Alright, just booted Mojave and it’s working again (both the slider and keys). Even though I rebooted multiple times and nothing happened (also nothing in sysprefs). Weird stuff..

Probably your kernel cache was not stable. Once you stop fiddling with kexts, you should have a stable kextcache.

 

[mhk]

Thanks Rehabman. Now work great. I always do backup of deleted kext. Bring back one of them and everything is perfect.
Big big applause for Your big big work.