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Cease macOS from freezing throughout sleep/wake on a Catalina Hackintosh


This information ought to resolve Catalina from freezing when a hackintosh is waked from sleep when operating off the Intel iGPU (built-in graphics). The mouse will freeze a pair seconds after being waked up and  there could also be a sudden restart with a kernel panic message saying there was an issue with Intel HDMI audio once you boot again in.

I seen this kernel panic solely occurs when these circumstances exist:

  • Utilizing AppleALC.kext with Clover (AppleALC is not being examined on Clover because the developer moved his help to OpenCore inflicting this problem)
  • Solely occurs when Intel graphics is enabled.
  • When the show monitor doesn’t have an HDMI audio output (This kernel panic occurred to me on a monitor that didn’t have audio system, however after I plug in my different monitor that did have HDMI audio with inbuilt audio system the kernel panic goes away)

To get round this problem we disable HDMI audio with a HDEF patch. In case you are utilizing the EFI information within the principal Catalina information this patch has already been included.

  1. Obtain gfxutil
  2. Open downloaded folder and Proper-click open  gfxutil
  3. An inventory will populate discover PCI0.HDEF and duplicate its PciRoot system path
    HDEF device path Boxed

    In my case the system path I would like to repeat is PciRoot(0x0)/Pci(0x1f,0x3) as its on the identical line as PCI0.HDEF =

  4. Open config.plist positioned in your EFI folder with Clover Configurator
  5. Choose Units column in Clover Configurator
  6. Choose the drop down menu and choose No or kind it within the field is within the high proper nook of the Units web page
  7. Choose the Properties tab close to the underside of the Units web page
  8. Click on the “+” signal underneath the Units* desk
  9. Paste the system path you copied from gfxutil
  10. Choose the Gadget path thats been added to the desk and add:
  11. Click on the “+” signal underneath the Properties desk to the proper
    Properties Key* Properties Worth Worth Sort
    No-hda-gfx AAAAAAAA AA DATA
    alc-layout-id 1 NUMBER

    No HDA fix for Catalina Kernel Panic after sleep Boxed

  12. Restart to use modifications and see if sleep works after.

I’m my testing this problem solely occurs when utilizing AppleALC on a monitor with out audio system over built-in graphics. Different methods to bypass this problem could be:

  • Switching your EFI to OpenCore or by utilizing a special audio answer than AppleALC.kext.
  • Switching to a monitor with audio system inbuilt so the panic doesn’t happen.


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