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[Help] Thinkpad T540p lock screen and sleep problem

Joined
Nov 21, 2017
Messages
88
Motherboard
thinkpad t540p
CPU
i5-4300M
Graphics
Intel HD 4600
Mobile Phone
Android, iOS
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
 

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RehabMan

Moderator
Joined
May 3, 2012
Messages
191,408
Motherboard
Intel DH67BL
CPU
Core i7-2600K
Graphics
Intel HD 3000
Mac
MacBook Air
Mobile Phone
iOS
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/guide-laptop-backlight-control-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.
 
Joined
Nov 21, 2017
Messages
88
Motherboard
thinkpad t540p
CPU
i5-4300M
Graphics
Intel HD 4600
Mobile Phone
Android, iOS
Your ioreg shows backlight control is not implemented.
https://www.tonymacx86.com/threads/guide-laptop-backlight-control-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

Moderator
Joined
May 3, 2012
Messages
191,408
Motherboard
Intel DH67BL
CPU
Core i7-2600K
Graphics
Intel HD 3000
Mac
MacBook Air
Mobile Phone
iOS
Joined
Nov 21, 2017
Messages
88
Motherboard
thinkpad t540p
CPU
i5-4300M
Graphics
Intel HD 4600
Mobile Phone
Android, iOS
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

Moderator
Joined
May 3, 2012
Messages
191,408
Motherboard
Intel DH67BL
CPU
Core i7-2600K
Graphics
Intel HD 3000
Mac
MacBook Air
Mobile Phone
iOS
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.
 
Joined
Nov 21, 2017
Messages
88
Motherboard
thinkpad t540p
CPU
i5-4300M
Graphics
Intel HD 4600
Mobile Phone
Android, iOS
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

Moderator
Joined
May 3, 2012
Messages
191,408
Motherboard
Intel DH67BL
CPU
Core i7-2600K
Graphics
Intel HD 3000
Mac
MacBook Air
Mobile Phone
iOS
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.
 
Joined
Nov 21, 2017
Messages
88
Motherboard
thinkpad t540p
CPU
i5-4300M
Graphics
Intel HD 4600
Mobile Phone
Android, iOS
Can I implement backlight control while use edp ( 0x0d220003)
 
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