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macOS Native CPU/IGPU Power Management

Joined
May 16, 2018
Messages
62
Motherboard
ASRock Extreme 4
CPU
i7-8700k
Graphics
RX 560
@toleda
After I have inserted the command "sudo kextunload AppleIntelInfo.kext" in terminal this is the output i got.

"Can't open CFBundle for /Users/jaminwang/Desktop/AppleIntelInfo.kext/AppleIntelInfo.kext."

I did follow the instruction but couldnt get it working


INSTALLATION:
Baseline
  • IOReg
    • File/Save a Copy As...
  • AppleIntelInfo.kext (see, Tools/3., below)
    • Terminal/$ (Drag kext to terminal window)
      Code:
      sudo kextload AppleIntelInfo.kext
      • Permissions problem, Terminal/$
        Code:
        cd (Drag kext to terminal window)
        sudo chown -R root:wheel AppleIntelInfo.kext
        sudo chmod -R 755 AppleIntelInfo.kext
        sudo kextload AppleIntelInfo.kext
    • Let system idle for 2 minutes, then
    • Terminal/$
      Code:
      sudo cat /tmp/AppleIntelInfo.dat
      sudo kextunload AppleIntelInfo.kext
    • Terminal/Select AppleIntelInfo.kext output
    • Terminal/Shell/Export Selected Text As ...

 

toleda

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Joined
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Messages
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Motherboard
Asus Maximus VII Impact
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Core i7-4770K
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RX 560 + HD4600
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iMac, MacBook Pro, Mac mini
Classic Mac
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iOS
I have inserted the command "sudo kextunload AppleIntelInfo.kext" in terminal
kextload required before Kextunload can run
Post Terminal output (Terminal/Shell/Export Selected Text As ...)
 

toleda

Moderator
Joined
May 20, 2010
Messages
24,458
Motherboard
Asus Maximus VII Impact
CPU
Core i7-4770K
Graphics
RX 560 + HD4600
Mac
iMac, MacBook Pro, Mac mini
Classic Mac
512K, LC, Power Mac
Mobile Phone
iOS
Here is the output
Not correct:
cd /Users/jaminwang/Desktop/AppleIntelInfo.kext

Correct:
Post #1/sudo kextload AppleIntelInfo.kext (Drag kext to terminal window)

Or if, Desktop/AppleIntelInfo.kext
cd Desktop
sudo kextload AppleIntelInfo.kext
 
Last edited:

toleda

Moderator
Joined
May 20, 2010
Messages
24,458
Motherboard
Asus Maximus VII Impact
CPU
Core i7-4770K
Graphics
RX 560 + HD4600
Mac
iMac, MacBook Pro, Mac mini
Classic Mac
512K, LC, Power Mac
Mobile Phone
iOS
Joined
Dec 10, 2013
Messages
153
Motherboard
Huawei Matebook D 2017
CPU
i5-7200U
Graphics
HD 620
Hi,
i'm posting here because i think it's my issue is related to a power management problem.
Here is the issue :
After a fresh boot my laptop power consuming according to Intel Power Gadget at idle PKG 0.8 as showed in the screenshot i took attached to this post.
But after the laptop goes to sleep and wake up the Intel Power Gadget shows PKG at idle is 1.3 and never goes lower than that.
I don't see any processes after sleep that are using more cpu than before sleep. I tried to disable most of my kext (AppleALC, bluetooth , wifi etc) but i've always the same result. Could be some CPU power state that got "broken" after sleep ?

Could someone point me in the right direction ?


Thanks
Mattia
 

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Joined
Jul 26, 2014
Messages
79
Motherboard
GA-Z97X-UD5H
CPU
i7-4790K
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RX 590
Mac
iMac, Mac mini
Mobile Phone
iOS
Step #2 in Installation says, "AppleIntelInfo.kext: Download and install" (my emphasis). However, installation "Load" (using the kextload command in terminal) of kext doesn't happen until steps 4 "Baseline" and 9 "Verify." Despite reading through these instructions multiple times, I took literally the instruction to "install" that kext using KextBeast putting it in L/E in step 2.

Bad things then happened requiring a restore from my SuperDuper clone. I found other posts from people doing the same thing and I even saw reports of problems resulting from AppleIntelInfo.kext just sitting on the desktop. So it appears I'm not the only person to ever make this error.

To help others, I might recommend editing step 2 to say something like, "AppleIntelInfo.kext: Download, do not install yet, save in a location other than Desktop, load it using "kextload" command in terminal in steps 4 & 9." Perhaps my edit is too obvious, but hopefully others reading this post will avoid a similar hiccup.
 
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