[Help] Thinkpad T540p lock screen and sleep problem

[lighting2]

I follow this guide https://www.tonymacx86.com/threads/guide-booting-the-os-x-installer-on-laptops-with-clover.148093/
I installed High Sierra to HDD successful.
Then follow this guide https://www.tonymacx86.com/threads/guide-native-power-management-for-laptops.175801/
(to have native power management)

1) I tried to lock screen (from Apple Menu)
few seconds later, screen switch to black ( backlight still available)
I move the mouse or press any key, there is no change, sometime screen flash light ( check the video attached)
Cannot go back to login screen

2) when I sleep from system menu, system go to sleep, led power blinking, but cannot wakeup back again, I have to hard reset

 

[RehabMan]

I follow this guide https://www.tonymacx86.com/threads/guide-booting-the-os-x-installer-on-laptops-with-clover.148093/
I installed High Sierra to HDD successful.
Then follow this guide https://www.tonymacx86.com/threads/guide-native-power-management-for-laptops.175801/
(to have native power management)

1) I tried to lock screen (from Apple Menu)
few seconds later, screen switch to black ( backlight still available)
I move the mouse or press any key, there is no change, sometime screen flash light ( check the video attached)
Cannot go back to login screen

2) when I sleep from system menu, system go to sleep, led power blinking, but cannot wakeup back again, I have to hard reset

Your ioreg shows backlight control is not implemented.
https://www.tonymacx86.com/threads/...rol-using-applebacklightinjector-kext.218222/

You're also using an ig-platform-id that is for desktops (0x0d220003). Not likely to work very well on a laptop.

 

[lighting2]

Your ioreg shows backlight control is not implemented.
https://www.tonymacx86.com/threads/...rol-using-applebacklightinjector-kext.218222/

You're also using an ig-platform-id that is for desktops (0x0d220003). Not likely to work very well on a laptop.

Oh men, you forget this thread
https://www.tonymacx86.com/threads/guide-lenovo-thinkpad-t440p.233282/page-25#post-1648385
My machine only work with 0x0d220003
I have tried add AppleBacklightInjector.kext and IntelBacklight.kext
together, but no change

 

[RehabMan]

Oh men, you forget this thread
https://www.tonymacx86.com/threads/guide-lenovo-thinkpad-t440p.233282/page-25#post-1648385
My machine only work with 0x0d220003
I have tried add AppleBacklightInjector.kext and IntelBacklight.kext
together, but no change

If your display is eDP (likely), it makes your laptop a poor choice for hackintosh.

 

[lighting2]

If your display is eDP (likely), it makes your laptop a poor choice for hackintosh.

Yep, I accept It's poor in graphic,
how to prevent it turn off screen when lock screen

 

[RehabMan]

Yep, I accept It's poor in graphic,
how to prevent it turn off screen when lock screen

Backlight control is important. I don't know of a way to implement it with eDP.
Will involve some patching to the framebuffer kext.

 

[lighting2]

Backlight control is important. I don't know of a way to implement it with eDP.
Will involve some patching to the framebuffer kext.

Do you have any guide to that patching?
and about eDP monitor, How to verify that only eDP?, Can I check another method to have graphics full working?
so far Native power management patching not applicable for eDP, right?

 

[RehabMan]

Do you have any guide to that patching?
and about eDP monitor, How to verify that only eDP?, Can I check another method to have graphics full working?
so far Native power management patching not applicable for eDP, right?

You can check eDP in Winodws (Intel graphics control panel app).
I think eDP machines, especially of your vintage are problematic.
Maybe google will help you.

 

[lighting2]

Can I implement backlight control while use edp ( 0x0d220003)

 

[RehabMan]

Can I implement backlight control while use edp ( 0x0d220003)

Not usually.