X299 Big Sur Support

[osxfr33k]

I made some research here #2,768 and maybe some improvement :

Please try this SSDT

The only point I cannot verify is :

Device (EGP0)
            {
                Name (_ADR, 0x00100000)  // _ADR: Address

We should check on your DSDT

My DSDT is so strange there is no EGP0 or mattystonnie has a rename patch I could try that again never worked on my SSDT attempts before, maybe it will with SSDT v4?

Rename Patch is still in my config file just as No all I have to do is change to yes. I attached DSDT.aml.

Here is what I found so far

    Scope (_SB.PC02.BR2A)
    {
        OperationRegion (PEGR, PCI_Config, 0xC0, 0x30)
        Field (PEGR, DWordAcc, NoLock, Preserve)
        {
            Offset (0x02),
            PSTS,   1,
            Offset (0x2C),
            GENG,   1,
                ,   1,
            PMEG,   1
        }

        Method (HPME, 0, Serialized)
        {
            PSTS = 0x01
        }

        Device (PEGP)
        {
            Name (_ADR, 0x00)  // _ADR: Address
            OperationRegion (PCIS, PCI_Config, 0x00, 0x0100)
            Field (PCIS, AnyAcc, NoLock, Preserve)
            {
                PVID,   16,
                PDID,   16
            }

            Method (_PRW, 0, NotSerialized)  // _PRW: Power Resources for Wake
            {
                Return (GPRW (0x69, 0x04))
            }
        }
    }

    Scope (_SB.PC03.BR3A)

Edited code above does not look like the right area should be PC02 sorry about that but DSDT attached. As long as Ioreg is correct because without ioreg who knows which Scope it is right?

 

[Loloflatsix]

@osxfr33k

Take a look at this pic :

Left side SSDT Loaded on X299 Sage so is what I set with my SSDT-5500XT-V4 post #510 according to your IOReg right side :

 

[osxfr33k]

@osxfr33k

Take a look at this pic :

Left side SSDT Loaded on X299 Sage so is what I set with my SSDT-550XT-V4 post #510 according to your IOReg right side :

View attachment 490277


View attachment 490282

Hooray!! It worked thanks a million times to you and everyone who has helped no need for rename patch. This has made a big different in my geekbench Compute OpenCL and Metal Scores. OPenCL score before SSDT was 33,333 and Metal was lower 30,434

Look at what this has done to my scores now I think it is significant need to get you my EFI shortly all done with this GFX final SSDT v4.

HDAU still onboard-1 in Ioreg and onboard-2 in SSDT but that is no matter:

 

[Loloflatsix]

Hooray!! It worked thanks a million times to you and everyone who has helped no need for rename patch. This has made a big different in my geekbench Compute OpenCL and Metal Scores. OPenCL score before SSDT was 33,333 and Metal was lower 30,434

Look at what this has done to my scores now I think it is significant need to get you my EFI shortly all done with this GFX final SSDT v4.

View attachment 490284

HDAU still onboard-1 in Ioreg and onboard-2 in SSDT but that is no matter:

View attachment 490297


View attachment 490286

View attachment 490288

Voilà : you're done and happy ! ( For sure as Big Sur )
Enjoy

I renamed the SSDT in the post #510

 

[Loloflatsix]

Problem with graphics on Big Sur :

On my X299 Gigabyte Aorus UG Pro build, However I can have a scaled resolution on my two display screens on Mojave:
Here Dell U2412 M and LG Ultra HD 43"
I can't do that on Big Sur ( the Dell becomes a black screen)

One of my two VEGA 56 is overheating on Big Sur.

(Edited)

 

[osxfr33k]

I know now I am being a pest would you be able to get me a screenshot of your ioreg showing EC and ECO wanted to see if they are the same as mine, its possible I might have to adjust the SSDT-EC for the Sage II I don't know?

 

[osxfr33k]

Problem with graphics on Big Sur :

On my X299 Gigabyte Aorus UG Pro build, However I can have a scaled resolution on my two display screens on Mojave:
Here Dell U2412 M and LG Ultra HD 43"
I can't do that on Big Sur ( the Dell becomes a black screen)
And one of my two VEGA 56 is overheating on Big Sur.

View attachment 490312

So for now I can run Big Sur for daily usage (first problem my TBEX3 just above the RX VEGA 56 burnt after 3 days ...)

Are you serious the Graphics Card died because of this?

 

[Loloflatsix]

Are you serious the Graphics Card died because of this?

No the Asus Thunderbolt EX3 died

 

[Loloflatsix]

I know now I am being a pest would you be able to get me a screenshot of your ioreg showing EC and ECO wanted to see if they are the same as mine, its possible I might have to adjust the SSDT-EC for the Sage II I don't know?

I have just this for EC:

And for the BUS0 :

 

[osxfr33k]

No the Asus Thunderbolt EX3

I have the same card never used it been sitting for over a year. Do you think the same thing may have happened to the Titan Ridge v2, not TB vendor specific related issue? This is not good still under warranty?

Thanks for posting above how about your AppleBusPowerController is it off the IOresources as mine is?