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[HELP] Guidance for Dell Inspiron 3558


melbin97

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Boot to Clover GUI. Hit F4. Continue onto OSX. Mount EFI partition.

Compress and attach /EFI/Clover/ACPI/Origin folder here for patching

Please also specify version of BIOS it's running currently.

If you want to update to latest BIOS, please do so before doing the steps.

If you don't know how to attach, see FAQ on my signature

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One more problem...

I have installed high siera and windows dual boot...

 

I have disabled switchable graphics option in BIOS..

 

I want to use nvidia in windows.. If i enable that option High sierra not booting... Even cant boot with nv_disable..

 

How can I disable Nvidia in only Mac OS.

 

And i want to use nvidia in windows..

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You should be able to do this through DSDT/SSDT patching where you basically permanently set the associated ACPI device (usually something like PEG0.PEGP or similar) to off.
 
1st check in IOReg which device corresponds to your nVidia dGPU which you'll find at address 0x00010000 (iGPU is located at address 0x00020000).
 
Looking at your DSDT and SSDT-5-SaSsdt tables, it certainly appears that:

  • your iGPU is device GFX0
  • your dGPU is PEG0.PEGP or PEG0.NVID

 

Try this patched DSDT where I have:

  • declared external method _SB.PCI0.PEG0._ON_OFF (defined in above SSDT table)
  • declared a new _INI method to turn the PEG0 device off
    External (_SB_.PCI0.PEG0._ON_._OFF, MethodObj)    // 0 Arguments (from opcode)
    Method (_INI, 0, NotSerialized)  // _INI: Initialize
    {
        \_SB.PCI0.PEG0._ON._OFF ()
    }

DSDT.aml.zip

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Your Origin folder is missing the code to disable the Nvidia card since you disabled it in the BIOS.

Clear the Origin folder first, then reboot to BIOS. Enable Switchable graphics.

Boot to Clover, hit F4. I know you can't boot, that's okay. Reboot back to BIOS and disable Switchable graphics. 

Boot into OS X and attach the new Origin folder.

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