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ThinkPad S440 Battery Status: DSDT patching

Joined
Dec 28, 2013
Messages
15
Motherboard
Lenovo ThinkPad S440
CPU
i7-4510U
Graphics
HD 4400 + HD 8670M @ 1600x900
Mobile Phone
iOS
Hello!

I'm having difficulties patching my DSDT to enable battery status monitoring on my laptop.

I've looked through the forum and I found post mentioning that Yoga S1 patch helped (but eventually the battery status became "stuck" on 97%), another user mentioned he made it work, but didn't tell how ☹. My battery status stays at 0%.

I am using OpenCore. Please refer to attached files for debug dump and OC folder.
 

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Last edited:
Joined
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Hi, I think you could use the DSDT for a similar machine like a T440 or T440s. I'm having a problem installing Mojave on my S440. Could you please share your EFI? I'm stuck on a rebooting cycle right after ++++end random seed.

Thanks in advance for your help!
 
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I'm having difficulties
If you need help, post files as per below guide
 
Joined
Dec 28, 2013
Messages
15
Motherboard
Lenovo ThinkPad S440
CPU
i7-4510U
Graphics
HD 4400 + HD 8670M @ 1600x900
Mobile Phone
iOS
If you need help, post files as per below guide
Thank you for your message, I attached debug to initial post.
 

Feartech

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Feartech

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Joined
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iMac
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Sorry for the mess, now I updated my profile to match my install.
I am using OpenCore.
ahh, that tool doesn't work with OpenCore
 

Feartech

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Joined
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Messages
17,947
Motherboard
Asus N752VX-OpenCore
CPU
i7-6700HQ / HM170
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HD 530 1920 x 1080
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iMac
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iOS
So then how can I provide you with necessary dumps?
should be removed:
ACPIBacklight.kext
IntelBacklight.kext

and replace:
ACPIBatteryManager.kext

with SMCBatteryManager.kext
 
Joined
Dec 28, 2013
Messages
15
Motherboard
Lenovo ThinkPad S440
CPU
i7-4510U
Graphics
HD 4400 + HD 8670M @ 1600x900
Mobile Phone
iOS
should be removed:
ACPIBacklight.kext
IntelBacklight.kext

and replace:
ACPIBatteryManager.kext

with SMCBatteryManager.kext
ACPIBacklight.kext
IntelBacklight.kext
were disabled in config.plist anyway

I replaced ACPIBatteryManager.kext with SMCBatteryManager.kext, still no luck enabling battery status in System Preferences :(
 
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