<< Solved >> i7 9750h at boot 3 min of backlight off

[kino1998]

Good morning,
I'm having an issue with the backlights... When I boot they stay off for like 3 minutes, then they all goes with no problems.
This issue started after the fix of the IGPU.
I've installed the patch for the backlights and now I have the slider for the brightness in the monitor settings, but at the boot the problem remains.
If someone can tell me where I do the mistake.
Attached there is the EFI files.
Thanks.

 

[jal]

Did you ever find the answer to this? I've had the same issue since installing Catalina.

 

[kino1998]

Sorry but i didn't find any solutions. I've try different configurations but none works.
And it's an intermittent issue, because some times starts with the backlight on, some times not.
If i found somethings i'll update this thread.

 

[kino1998]

Good Morning, with the last updates of the kexts Lilu and WhateverGreen the problem has been fixed.
I've used hackintool to download the last version of the kexts.