[SUCCESS] Gigabyte Designare Z390 (Thunderbolt 3) + i7-9700K + AMD RX 580

[taegan]

Some suggestions:

• Try the suggestions in this post.
• Check your shikigva value in Boot Arguments. What value are you using?
• Check your SMBIOS name. Are you using iMac19,1 or iMacPro1,1?

I tried the post, iPad, iPhone, iWatch... computer turned on and off, but without success
shikigva is 80
SMBIOS name iMac19,1

 

[Inqnuam]

This is not a solution. Please run IORegistryExplorer and search for "Thunderbolt", then post a screenshot.

Maybe NVRAM reset is needed after changing TB SSDT?

 

[oreoapple]

This is not a solution. Please run IORegistryExplorer and search for "Thunderbolt", then post a screenshot.

 

[CaseySJ]

We need to search for RP05 and replace it with RP21. If unsure how to do this, simply post your Thunderbolt SSDT and I can modify it for you.

 

[oreoapple]

Maybe NVRAM reset is needed after changing TB SSDT?

reset NVRAM doesn't help.

 

[oreoapple]

I did and this is the SSDT I use.

We need to search for RP05 and replace it with RP21. If unsure how to do this, simply post your Thunderbolt SSDT and I can modify it for you.

 

[CaseySJ]

I did and this is the SSDT I use.

The SSDT looks correct. For some reason the Thunderbolt SSDT is not loading, so perhaps you are missing SSDT-DTPG.aml?

 

[CaseySJ]

Yes, but nothing to do, always black screen, I can only see the sidebar, and on arrangement I can see it

These are some of the requirements for enabling Sidecar:

• SMBIOS iMac19,1 (although there are workarounds for other system definitions)
• BIOS --> Internal Graphics --> Enabled (not Auto)
• Platform ID set to either 0x3E980003 (headless) or 0x3E9B0007. Headless is recommended. This can be determined by running Hackintool and looking that the front page.
• Logged in to same iCloud account on both the Hackintosh and iPad.

 

[oreoapple]

I add SSDT-DTPG but still the same behavior...

The SSDT looks correct. For some reason the Thunderbolt SSDT is not loading, so perhaps you are missing SSDT-DTPG.aml?

 

[CaseySJ]

I add SSDT-DTPG but still the same behavior...

If you run IORegistryExplorer and scroll (not search) down to RP21 you should see device names such as:

• UPSB
• DSB0
• NHI0
• DSB1
• DSB2
• DSB4

As we can see in the screenshot, these names do not appear. Additionally, IOThunderboltPort@5 is empty. This means the Thunderbolt SSDT is not loaded and hence no hot-plug, and certain devices such as external drives and NAS units will not work. Certain Thunderbolt monitors will also not work. The system log might indicate why:

log show --last boot | grep ACPI | head -500 > ~/Documents/bootlog.txt