Can't get AppleGraphicsPowerManagement.kext to load!

[boez2000]

Hello,

I have been trying to get GPU PM working, but I can't get it. I have tried almost everything. I hope i can get some help. I've attached my IOReg and my AGPM.kext
Note: It's for my laptop so specs aren't right.

 

[P1LGRIM]

Moved to Laptop Support.

 

[RehabMan]

Hello,

I have been trying to get GPU PM working, but I can't get it. I have tried almost everything. I hope i can get some help. I've attached my IOReg and my AGPM.kext
Note: It's for my laptop so specs aren't right.

Please provide complete details in your profile/signature
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System: manufacturer/model + bootloader(Clover/Chameleon/Chimera)
CPU: detailed CPU model + motherboard chipset
Graphics: all graphics devices + laptop internal screen resolution

For example, typical Ivy laptop:
System: HP ProBook 4540s (Clover)
CPU: i5-3320m/HM76
Graphics: HD4000, 1366x768

Use CPU-Z on Windows to find CPU (Core iX-xxx) and motherboard chipset (HMxx), and graphics capabilities. For a laptop, these details are important and affect critical installation procedures.

 

[boez2000]

I've done so.

 

[RehabMan]

Hello,

I have been trying to get GPU PM working, but I can't get it. I have tried almost everything. I hope i can get some help. I've attached my IOReg and my AGPM.kext
Note: It's for my laptop so specs aren't right.

My understanding of AGPM with discrete devices (like your Nvidia) is that the device must be named GFX0. Yours is VID.

 

[boez2000]

Could you clearly describe which patch i need to apply?

 

[RehabMan]

Could you clearly describe which patch i need to apply?

I don't know of a ready-made patch.

DSDT patching guide is here: http://www.tonymacx86.com/yosemite-laptop-support/152573-guide-patching-laptop-dsdt-ssdts.html

Basically, you want to rename VID (for the discrete card only) -> GFX0.

 

[boez2000]

I changed it to GFX0(see IOreg) but it still doesn't work. Could you check if I have good value's in my AGPM.kext? I checked it with plutil, it's ok but maybe my vendor/device aren't correct.

 

[RehabMan]

I changed it to GFX0(see IOreg) but it still doesn't work. Could you check if I have good value's in my AGPM.kext? I checked it with plutil, it's ok but maybe my vendor/device aren't correct.

No real idea on the details.. no Nvidia hardware here.

There is some info here: http://www.tonymacx86.com/mountain-...tive-ivy-bridge-cpu-gpu-power-management.html

 

[maromi]

AGPM isn't going to work without ACPI_SMC_PlatformPlugin.kext