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[BUG] Black screen 3 minutes after booting, CoffeeLake UHD 630

Maybe the update I just did to SSDT-PNLF.dsl helps...

I spent a few days on the WEG backlight fix so I really can't justify spending more time on this right now but hopefully there are some people in this thread that can test it.
 
I am following this up myself but don’t have hardware to test. Getting one real soon. But someone will figure it out by then.
 
I spent a few days on the WEG backlight fix so I really can't justify spending more time on this right now but hopefully there are some people in this thread that can test it.

I suspect it will work, hopefully.

Easy to test though...
Remove your other PNLF patches (eg. remove the ACPI 100 stuff)
Add SSDT-PNLF.aml
Remove the kernel flag for the WEG fix.
Reboot and test.

One thing: I suspect I will need to add some advice in the USB/Clover installer guide for people to add SSDT-PNLF.aml+AppleBacklightFixup.kext so they don't run into the issue with the installer.
 
You should try non-HWP SMBIOS such as MacBookPro11,1.

If X86PlatformPlugin is loaded (in ioreg), then you have at least something right regarding CPU PM.

Have you found an ioreg from a real CoffeeLake Mac? It might help answer some questions.

Here's an ioreg from a MacBook Pro 15,1 - just realized my coworker got a new Coffee Lake machine.
 

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Here's an ioreg from a MacBook Pro 15,1 - just realized my coworker got a new Coffee Lake machine.

Unfortunately, that data is incomplete (no property data for each node). An actual ioreg file would be better. And a MacBookPro15,2 would be better still as it is Intel only, where this one has AMD graphics.

Did you have a chance to test the latest SSDT-PNLF with your laptop?
 
Unfortunately, that data is incomplete (no property data for each node). An actual ioreg file would be better. And a MacBookPro15,2 would be better still as it is Intel only, where this one has AMD graphics.

Did you have a chance to test the latest SSDT-PNLF with your laptop?

What do you mean by an actual ioreg file? Using IORegistryExplorer -> File -> Save?

I have not tested the latest SSDT-PNLF, but I can do it tonight and provide feedback.
 
ioreg attached. I'll look around to see if we got any new MacBookPro15,2 but I'm guessing not.

Cool.. definitely confirms different backlight setup on GMUX setups (eg. Mac dual-GPU).
 
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