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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 working 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 if you boot again in.

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

  • Utilizing AppleALC.kext with Clover (AppleALC is now not being examined on Clover because the developer moved his help to OpenCore inflicting this difficulty)
  • 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 once I plug in my different monitor that did have HDMI audio with in-built audio system the kernel panic goes away)

To get round this difficulty we disable HDMI audio with a HDEF patch. If you’re utilizing the EFI recordsdata within the fundamental Catalina information this patch has already been included.

  1. Obtain gfxutil
  2. Open downloaded folder and Proper-click open  gfxutil
  3. A listing will populate discover PCI0.HDEF and replica its PciRoot machine path
    HDEF device path Boxed

    In my case the machine path I want 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 sort it within the field is within the prime 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 below the Units* desk
  9. Paste the machine path you copied from gfxutil
  10. Choose the Machine path thats been added to the desk and add:
  11. Click on the “+” signal below the Properties desk to the proper
    Properties Key* Properties Worth Worth Kind
    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 difficulty solely occurs when utilizing AppleALC on a monitor with out audio system over built-in graphics. Different methods to bypass this difficulty can be:

  • Switching your EFI to OpenCore or by utilizing a distinct audio resolution than AppleALC.kext.
  • Switching to a monitor with audio system in-built so the panic doesn’t happen.

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