Intel UHD 620 HDMI output is not working

[pawan2joy]

Are you sure?

Yes im certain.. No graphics card except Intel Graphics 620

 

[pawan2joy]

An interesting thing i noticed recently is when trying to update one of the ThinkStation (9700). It seems like the Connector0 is replaced by Connector1. For example, till Ventura, the HDMI is Con0 and the DP is Con1. However, in macOS Sequoia, its opposite so it fails to output. Once the connector type were replaced, the display worked from both. Cannot confirm this bug 100% yet, but that's what i've found at least.

Can you please help to do that yo try.. What changes I should make to try this..

 

[pawan2joy]

This is not what @Max.1974 posted.

yes, Max's EFI didnt work, i didnt get any HDMI output.. I shared the one which worked (after trying more than 15 EFIs) but i need to map its graphics inputs in my config.plist/ACPI to keep my other things intact.. if thats possible

 

[EliteMacx86]

Yes im certain.. No graphics card except Intel Graphics 620

Okay.

 

[EliteMacx86]

Can you please help to do that yo try.. What changes I should make to try this..

At the moment, its in the test phase before the main guide gets updated.

 

[EliteMacx86]

yes, Max's EFI didnt work, i didnt get any HDMI output.. I shared the one which worked (after trying more than 15 EFIs) but i need to map its graphics inputs in my config.plist/ACPI to keep my other things intact.. if thats possible

Of course, you can use your original config.plist and copy the entire DeviceProperties from @Max.1974 config.plist.

Also, you can try the following entries. You must remove the existing keys and use the one listed here:
AAPL,ig-platform-id = 0900A53E
device-id = C49B0000
dpcd-max-link-rate = 0A000000
enable-dpcd-max-link-rate-fix = 01000000
framebuffer-con0-enable = 01000000
framebuffer-con0-type = 00040000
framebuffer-con1-busid = 01000000
framebuffer-con1-enable = 01000000
framebuffer-con1-type = 00080000
framebuffer-con2-enable = 01000000
framebuffer-con2-index = FFFFFFFF
framebuffer-fbmem = 00009000
framebuffer-patch-enable = 01000000
framebuffer-portcount = 02000000
framebuffer-stolenmem = 00003001
hda-gfx = onboard-1

Save changes to your config.plist. Reset NVRAM twice. Open IOReg and connect HDMI. Use 1080p monitor or TV and check if the external display works now.

 

[pawan2joy]

Same issue... attached revised config and IOreg file.


first time in my hackintosh experience something made me try so many things but nothing works.. strange.. it made me realize its not easy

 

[EliteMacx86]

Same issue... attached revised config and IOreg file

Your EFI is a complete crap!

Why are you using AAPL,sot-name, device_type, model in the Device Properties? Those were not asked!

The kext loading order is not correct. You're injecting the kexts blindly without knowing the hardware. Seems like someone else did it for you who also is not aware of the hardware specs or it could be possible that you picked a random EFI from internet and with a few tweaks, it works for you. Either the case, it is so much wrong. For example, you're injecting AppleALC+AppleALCU, all kind of Voodoo Satellite kexts. Moreover, you have two instance of VoodooInput. One is from VoodooPS2 and the other is from VoodooI2C.

Why are you using CustomSMBIOSGuid? Its required for Dell and SONY Laptops.

When you have a CML Laptop, what's the reason to use -igfxsklaskbl flag? Makes no sense at all.

Why is the SMBIOS set to Custom instead of Create?

 

[pawan2joy]

actually i do snapshot of EFI through propertree whenever i update anything in my config to avoid missing anything.. that may be the reason for messed up kexts order..

someone helped me to make this hack work, rest im not aware..

is anything can be done on this, or i should let it go for the moment.


Dont know if i should say this, i have one EFI downloaded from internet where HDMI works, do you see if everything ok in that EFI.. if yes.. i can incorporate serial and other things to make it my master EFI

 

[EliteMacx86]

actually i do snapshot of EFI through propertree whenever i update anything in my config to avoid missing anything.. that may be the reason for messed up kexts order..

Ah, that's the reason.

someone helped me to make this hack work, rest im not aware..

Ah ok.

is anything can be done on this, or i should let it go for the moment.

Of course, you can make the mentioned the changes.

Dont know if i should say this, i have one EFI downloaded from internet where HDMI works, do you see if everything ok in that EFI.. if yes.. i can incorporate serial and other things to make it my master EFI

Also, try to add agdpmod=pikera and then check if you can get the display via HDMI. Make sure to make the above changes as mentioned in the previous.

Yes, you can attach that EFI for reference.