Big Sur...BIG Problem

[Hecatomb]

Coffee Lake systems failing to wake​

In macOS 10.15.4, there were some changes made to AGPM that can cause wake issues on Coffee Lake systems. Specifically displays hooked up to the iGPU would fail to wake. To resolve this:

• Add igfxonln=1 to boot-args
• Make sure you're using WhateverGreen v1.3.8 (opens new window)or newer

​

Post-Install Issues | OpenCore Install Guide

 

[Ritesh]

I already mentioned in my previous threats that igfxonln=1 does not work for me!

 

[Feartech]

I already mentioned in my previous threats that igfxonln=1 does not work for me!

you will have to upload your new zipped EFI if you have made changes

 

[Hecatomb]

some igpu don't work...you only need to use a supported gpu. I make it like the same way with some systems

 

[Ritesh]

you will have to upload your new zipped EFI if you have made changes

After adding igfxonln=1 my screen remains blank in wake mode,so the boot arg in useless to me hence i removed that. Hence i am attaching my current EFI for troubleshooting,please help!

 

[Feartech]

After adding igfxonln=1 my screen remains blank in wake mode,so the boot arg in useless to me hence i removed that. Hence i am attaching my current EFI for troubleshooting,please help!

seem to be missing SS ports in your usbports.kext info.plist

normally you would have for example only HS01 and SS01 both set to USB3.0
best to read up on:

The New Beginner's Guide to USB Port Configuration

Important Update: June 2023 From Big Sur 11.3 on the built-in OpenCore XhciPortLimit quirk no-longer worked as described. This became a known "bug", though in reality it was Apple changing their internal code, making a simple "peek and poke" to keep it operating, a difficult task. However, with...

www.tonymacx86.com

iMac19,1 would be a better choice of smbios, don't forget to change info.plist in your usbports.kext to iMac19,1 as well

 

[Middleman]

Thanks for your time,but by using your attached EFI folder my screen goes blank
so i have figured out something..i have added some device properties i can able to get the display directly to HDMI port,but no GPU acceleration.i am attaching my screen shot...have a look.

View attachment 546230


and also i have changed by SMBIOS to 19.2 because it is closed to my Configuration.

Thanks and regards.

Hi Ritesh,

Had a quick look at your settings. Looks like that device-id is wrong. Try using 9B3E0000. Should enable the Intel Quicksync.

As for the hardware acceleration, I'd try by adding the following:

 

[Ritesh]

Hi Ritesh,

Had a quick look at your settings. Looks like that device-id is wrong. Try using 9B3E0000. Should enable the Intel Quicksync.

As for the hardware acceleration, I'd try by adding the following:

View attachment 547233

Hardware acceleration is diffrent from QE/CI? because in hackintool it shows QE/CI supported and VRAM is also showing correctly,so do i need to still change just for wake issue after sleep?

 

[Ritesh]

iMac19,1 would be a better choice of smbios, don't forget to change info.plist in your usbports.kext to iMac19,1 as well

iMac 19,1 includes core i5 and i9 variants but iMac 19,2 come with i3 variant which is exactly my CPU. and as per the guide we have to select closest CPU's SMBIOS.
So still if i changed my SMBIOS Wrong CPU info is getting displayed under About This Mac.

 

[UtterDisbelief]

iMac 19,1 includes core i5 and i9 variants but iMac 19,2 come with i3 variant which is exactly my CPU. and as per the guide we have to select closest CPU's SMBIOS.
So still if i changed my SMBIOS Wrong CPU info is getting displayed under About This Mac.

No, that is not correct.

Yes, choose a system-definition that is broadly similar to your own hardware, but that does not change the CPU info displayed. It will change the model type shown at the top. The CPU info can easily be corrected using config.plist.

As @Feartech said, use a known reliable system-definition. There have been a few over the years which were the best choices for a hackintosh and it makes sense to use one of those.