[Guide] Disabling discrete graphics in dual-GPU laptops

[mxrk]

Some problem, when i search _INI and _OFF method.
In correctly SSDT, _INI placed into \_SB.PCI0.RP01.PEGP -> _INI

(in picture, my SSDT-9 with _INI method)

Also _OFF method too must be into \_SB.PCI0.RP01.PEGP. It is available in SSDT-9 and SSDT10.
In SSDT10 _OFF method located in the right place, but it has no adress, as i suppose.

In SSDT9, i found _OFF method in \_SB.PCI0.RP01. As I understand it is wrong?

Or i can patch this? Also how to understand if the discrete is disabled or not? What value should look and IOReg?
I attached my SSDT's and DSDT. Help please.

 

[RehabMan]

Some problem, when i search _INI and _OFF method.
In correctly SSDT, _INI placed into \_SB.PCI0.RP01.PEGP -> _INI
View attachment 372645
(in picture, my SSDT-9 with _INI method)

Also _OFF method too must be into \_SB.PCI0.RP01.PEGP. It is available in SSDT-9 and SSDT10.
In SSDT10 _OFF method located in the right place, but it has no adress, as i suppose.
View attachment 372646
In SSDT9, i found _OFF method in \_SB.PCI0.RP01. As I understand it is wrong?
View attachment 372647
Or i can patch this? Also how to understand if the discrete is disabled or not? What value should look and IOReg?
I attached my SSDT's and DSDT. Help please.

Nothing unusual here.
_OFF is in SSDT-10.
Associated _INI is in SSDT-9.

This scenario is covered in post #1.

What is the question?

 

[Madiyar]

Did everything by guide, but fans are still working.
Could you please check?

 

[RehabMan]

Did everything by guide, but fans are still working.
Could you please check?

Clover does not read .dsl files in ACPI/patched.
Refer to ACPI basics in the guide:
https://www.tonymacx86.com/threads/guide-patching-laptop-dsdt-ssdts.152573/

 

[Madiyar]

Clover does not read .dsl files in ACPI/patched.
Refer to ACPI basics in the guide:
https://www.tonymacx86.com/threads/guide-patching-laptop-dsdt-ssdts.152573/

added to Clover AutoMerge=true, SSDT/DropOem=false

didn't work

 

[RehabMan]

added to Clover AutoMerge=true, SSDT/DropOem=false

didn't work

AutoMerge=true, DropOem=false is default in guide plists.

But that is not the problem identified in post #2144.
Go back and read it again. Carefully.

 

[AlexViean]

Thank you so much. Turns out, I just need 1 line of code to make it work. Much appreciated

 

[Man0waR]

Hello,
Please help me with disabling internal graphics, because Mojave refuses to install.
Though it is not a laptop, but a large Xeon server board with 2D graphics engine integrated in BMC controller.
There is no option to disable it in BIOS. So I'd like to give it a try with ACPI patching.
So I extracted aml files with Clover. The only SSDT was SSDT-0-CpuPm.aml, so I suppose all fixes should go to DSDT.
I decompiled it, but not sure how to find the device I'm going to disable. The only I know, it is VGA class with ID 1A03:2000.
Maybe there are easier means of hiding PCI device?

 

[Man0waR]

Looks like I found Clover feature which sound exactly what I need: DisableFunctions
But it is totally undocumented, not sure which numbers to set there. Any clue?

 

[RehabMan]

Hello,
Please help me with disabling internal graphics, because Mojave refuses to install.
Though it is not a laptop, but a large Xeon server board with 2D graphics engine integrated in BMC controller.
There is no option to disable it in BIOS. So I'd like to give it a try with ACPI patching.
So I extracted aml files with Clover. The only SSDT was SSDT-0-CpuPm.aml, so I suppose all fixes should go to DSDT.
I decompiled it, but not sure how to find the device I'm going to disable. The only I know, it is VGA class with ID 1A03:2000.
Maybe there are easier means of hiding PCI device?

Off-topic. This guide is for laptops.