[Guide] Disabling discrete graphics in dual-GPU laptops

[Wuttodo]

I have checked,

grep -l Method.*_OFF *.dsl
grep -l Method.*_INI *.dsl
grep -l Method.*_ON *.dsl

For all, output is same,

DSDT.dsl
SSDT-4.dsl

That puts me in both categories mentioned in "Note", and as per my understanding, all I have to do now is use "Call _OFF from _INI (SSDT)" patch from your repo on MaciASL.

Note that this example is complex and not all laptops will have the same configuration. For most, the _INI and _OFF associated with the discrete device are in the same SSDT. In that case it is not necessary to use the External declaration. You can use the "Call _OFF from _INI (SSDT)" patch directly. Some even have it in DSDT (again you can use the patch directly). And not all _OFF methods access the EC, so the movement of the EC related code to _REG is not needed.

It is also possible that the EC related code is more than one line. All such code should be moved to _REG.

However, on DSDT, and SSDT-4, that patch is greyed out.

In DSDT, "Disable from _REG (DSDT)" is apply-able, but I have not applied it yet.

What should I do? also do I need to edit patches from your repo before applying by changing BIOS Device name, as in your patches they are

into method label _INI parent_label \_SB.PCI0.PEG0.PEGP insert

but in my device they are

\_SB.PCI0.RP01.PXSX

I tried my best to keep this reply detailed yet small as I could. Thank you for your patience and time Mr. RehabMan!

Edit: Adding those DASL files. Just in case.

 

[RehabMan]

I have checked,

grep -l Method.*_OFF *.dsl
grep -l Method.*_INI *.dsl
grep -l Method.*_ON *.dsl

For all, output is same,

DSDT.dsl
SSDT-4.dsl

That puts me in both categories mentioned in "Note", and as per my understanding, all I have to do now is use "Call _OFF from _INI (SSDT)" patch from your repo on MaciASL.

However, on DSDT, and SSDT-4, that patch is greyed out.

In DSDT, "Disable from _REG (DSDT)" is apply-able, but I have not applied it yet.

What should I do? also do I need to edit patches from your repo before applying by changing BIOS Device name, as in your patches they are

into method label _INI parent_label \_SB.PCI0.PEG0.PEGP insert

but in my device they are

\_SB.PCI0.RP01.PXSX

I tried my best to keep this reply detailed yet small as I could. Thank you for your patience and time Mr. RehabMan!

Edit: Adding those DASL files. Just in case.

I had no issue applying the correct patch to SSDT-4.aml as per guide:

into method label _INI parent_label \_SB.PCI0.RP01.PXSX insert
begin
//added to turn nvidia/radeon off\n
_OFF()\n
end;

 

[naonweh]

how do I know if dedicated Nvidia is disabled or not?

 

[RehabMan]

how do I know if dedicated Nvidia is disabled or not?

You will not see it in System Information->Graphics/Displays.
Also, changes in ioreg (Nvidia device will no longer be on the PCIe bus).

 

[ferrousdragon]

Hi. I have successfully disabled the Nvidia optimus card in my laptop, and it no longer shows at System Information > Graphics/Displays. However, the fan is going crazy now, spinning at full speed even the temperature is very low. Can I have any clues please? I am attaching the debug info and the patched ACPI files here. Thank you.

 

[RehabMan]

Hi. I have successfully disabled the Nvidia optimus card in my laptop, and it no longer shows at System Information > Graphics/Displays. However, the fan is going crazy now, spinning at full speed even the temperature is very low. Can I have any clues please? I am attaching the debug info and the patched ACPI files here. Thank you.

As per guide, try calling _PS3 instead of _OFF.

Note: You still need to patch DSDT (for example, you have no accommodation for _OSI("Darwin"). Requires an "OS Check Fix" patch or at least _OSI->XOSI + SSDT-XOSI.aml.
https://www.tonymacx86.com/threads/guide-patching-laptop-dsdt-ssdts.152573/

 

[erer1972]

I have Asus x550jx I7-4720 Wıth Nvidia 950 and hd4600 boot wıth clover UEFI. I just could not dısable optımus could you guys please have a look

 

[RehabMan]

I have Asus x550jx I7-4720 Wıth Nvidia 950 and hd4600 boot wıth clover UEFI. I just could not dısable optımus could you guys please have a look

Start over with proper plist:
https://www.tonymacx86.com/threads/guide-booting-the-os-x-installer-on-laptops-with-clover.148093/

Patch only the files that need patches (eg. don't place files that don't need patching in ACPI/patched), as per post #1.

 

[erer1972]

Start over with proper plist:
https://www.tonymacx86.com/threads/guide-booting-the-os-x-installer-on-laptops-with-clover.148093/

Patch only the files that need patches (eg. don't place files that don't need patching in ACPI/patched), as per post #1.

Can you explain proper plist ? and why you say could you gıve me some clue ?

 

[RehabMan]

Can you explain proper plist ? and why you say could you gıve me some clue ?

The guide links good starter plists for common laptop configurations.
Read "Choosing a config.plist" in the guide.

Also, you profile is not filled out. Please fix as per FAQ:
https://www.tonymacx86.com/threads/faq-read-first-laptop-frequent-questions.164990/