[Guide] Disabling discrete graphics in dual-GPU laptops

[RehabMan]

If I use the following:

Method (_INI, 0, NotSerialized) // _INI: Initialize
{
Store (Zero, \_SB.PCI0.RP01.PEGP._ADR)
//added to turn nvidia/radeon off
//External(\_SB.PCI0.RP01.PEGP._OFF, MethodObj)
_OFF()
}

I get a compile error at line 185, code 6084 "Object does not exist (_OFF)

As per guide, you must use External to reach symbols that are not in the same SSDT.
You have it commented out...
Must read carefully.

 

[pkdesign]

Ay yi yi, so many moving parts and so much information!

That did it. I took out the commenting, put back the _OFF(), and it compiled perfectly.

I've attached reporting file for a final check (at least for this part!) Hopefully sleep/wake, etc. will work now.

 

[RehabMan]

Ay yi yi, so many moving parts and so much information!

That did it. I took out the commenting, put back the _OFF(), and it compiled perfectly.

I've attached reporting file for a final check (at least for this part!) Hopefully sleep/wake, etc. will work now.

Looks good.

 

[pkdesign]

Thank you as always for all your help! I'm sure I will need more as I continue to get this laptop perfect.

 

[DushFernando]

I found _INI in SSDT-4*.aml,

Method (_INI, 0, NotSerialized)  // _INI: Initialize
        {
            Store (Zero, \_SB.PCI0.PEG0.PEGP._ADR)
            Store (SVID, HVID)
            Store (SDID, HDID)

However the _OFF is pretty confusing since it's very different from the guide

Method (_OFF, 0, Serialized)  // _OFF: Power Off
        {
            Store (LCTL, ELCT)
            Store (SVID, HVID)
            Store (SDID, HDID)
            Store (EMLW, DMLW)
            SPP0 ()
            Store (One, LNKD)
            Store (Zero, TCNT)
            While (LLess (TCNT, LDLY))
            {
                If (LEqual (LNKS, Zero))
                {
                    Break
                }

                Sleep (0x10)
                Add (TCNT, 0x10, TCNT)
            }

            Store (0x02, AFES)
            If (LGreaterEqual (And (PNHM, 0x0F), 0x03))
            {
                Store (GMXB (), MBDL)
                PDUB (MBDL)
            }

            If (LGreaterEqual (PCSL, 0x04))
            {
                If (LEqual (SC7A, One))
                {
                    C7OK (One)
                }
            }

            SGPO (HLRS, One)
            SGPO (PWEN, Zero)
            Notify (\_SB.PCI0.PEG0, Zero)
            Return (Zero)
        }

Any help would be appreciated..

 

[RehabMan]

I found _INI in SSDT-4*.aml,

Method (_INI, 0, NotSerialized)  // _INI: Initialize
        {
            Store (Zero, \_SB.PCI0.PEG0.PEGP._ADR)
            Store (SVID, HVID)
            Store (SDID, HDID)

Yes.

However the _OFF is pretty confusing since it's very different from the guide

Method (_OFF, 0, Serialized)  // _OFF: Power Off
        {
            Store (LCTL, ELCT)
            Store (SVID, HVID)
            Store (SDID, HDID)
            Store (EMLW, DMLW)
            SPP0 ()
            Store (One, LNKD)
            Store (Zero, TCNT)
            While (LLess (TCNT, LDLY))
            {
                If (LEqual (LNKS, Zero))
                {
                    Break
                }

                Sleep (0x10)
                Add (TCNT, 0x10, TCNT)
            }

            Store (0x02, AFES)
            If (LGreaterEqual (And (PNHM, 0x0F), 0x03))
            {
                Store (GMXB (), MBDL)
                PDUB (MBDL)
            }

            If (LGreaterEqual (PCSL, 0x04))
            {
                If (LEqual (SC7A, One))
                {
                    C7OK (One)
                }
            }

            SGPO (HLRS, One)
            SGPO (PWEN, Zero)
            Notify (\_SB.PCI0.PEG0, Zero)
            Return (Zero)
        }

Any help would be appreciated..

Nothing unusual there.

 

[DushFernando]

Nothing unusual there.

Could you please tell me how to patch _OFF? I don't quite understand it..

 

[RehabMan]

Could you please tell me how to patch _OFF? I don't quite understand it..

No need to patch _OFF as it has no EC references.
Just call _OFF from _INI... as written in the guide.

 

[DushFernando]

No need to patch _OFF as it has no EC references.
Just call _OFF from _INI... as written in the guide.

Thank you very much~ Really appreciate it, I've been struggling for hours now before I post it here.. btw Have a beautiful day!

 

[fegasa11]

Can someone help me to disable dedicated nvidia?
Thanks