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Question - Upgrade to 0.6.8 fails. Stable and happy on 0.6.2. What is the advantage of staying on the latest build of OpenCore?

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Link to my 0.6.2 EFI - https://www.dropbox.com/sh/eux7cuo49xnnr5d/AAA6mkJwhSTSOU42zVGdNNaja?dl=0

Link to my 0.6.8 EFI (fails to black screen) - https://www.dropbox.com/sh/xnna4ebpujtzuxl/AADhi4psKtEogtkK6-s_DDGpa?dl=0


I've spend the better part of the last 4 days getting dual boot, audio, and other issues successfully resolved.  I'm wonder if it is worth trying to stay current with the latest OpenCore build?  Advantages?  Disadvantages?

Any help would be appreciated.  Thanks!



why create new post? add alcid=15 or related your audio device

sanity check
SSDT-RHUB.aml is not required on Coffee Lake motherboards
SetupVirtualMap = No but should normally be Yes

This is a Comet Lake motherboard.  Thanks for the tip about post continuity.  I will do so in the future, I am new here.

alcid=7 is working well for me.

ran the sanity check and the OC configurator validation/config check.  Everything is fine

I will check the SetupVirtualMap and report back.  Thank you!.

I used SSDT Time to create machine specific SSDTs after running on Windows10 to create a DSDT.  Successfully added them to my 0.6.2 EFI.


Also added them to my test 0.6.8 EFI and it goes all the way past the OpenCanopy picker and stops with a black screen.  I can hear system chime if I press any key on the keyboard though.


I'm quite confused as to why it won't complete the boot process in 0.6.8.


Desktop: (10th Gen) Comet Lake OpenCore 0.6.8


SSDT-AWAC.aml Make sure this file is in your OC/ACPI directory
SSDT-EC.aml Make sure this file is in your OC/ACPI directory
SSDT-HPET.aml Make sure this file is in your OC/ACPI directory
SSDT-PMC.aml Make sure this file is in your OC/ACPI directory
SSDT-USB-Reset.aml Make sure this file is in your OC/ACPI directory
SSDT-PLUG-DRTNIA.aml Make sure this file is in your OC/ACPI directory



FadtEnableReset = No
NormalizeHeaders = No
RebaseRegions = No
ResetHwSig = No
ResetLogoStatus = No




AllowRelocationBlock = No
AvoidRuntimeDefrag = Yes
DevirtualiseMmio = Yes
DisableSingleUser = No
DisableVariableWrite = No
DiscardHibernateMap = No
EnableSafeModeSlide = Yes
EnableWriteUnprotector = No
ForceExitBootServices = No
ProtectMemoryRegions = No
ProtectSecureBoot = No
ProtectUefiServices = Yes
ProvideCustomSlide = Yes
ProvideMaxSlide = 0
RebuildAppleMemoryMap = Yes
SetupVirtualMap = No
SignalAppleOS = No
SyncRuntimePermissions = Yes
ForceBooterSignature = No





Lilu.kext make sure this Kext is in your OC/Kexts directory and the first kext listed here
VirtualSMC.kext make sure this Kext is in your OC/Kexts directory
SMCProcessor.kext make sure this Kext is in your OC/Kexts directory
SMCSuperIO.kext make sure this Kext is in your OC/Kexts directory
WhateverGreen.kext make sure this Kext is in your OC/Kexts directory
AppleALC.kext make sure this Kext is in your OC/Kexts directory
RealtekRTL8111.kext make sure this Kext is in your OC/Kexts directory
AppleMCEReporterDisabler.kext make sure this Kext is in your OC/Kexts directory


DummyPowerManagement = No



AppleCpuPmCfgLock = No
AppleXcpmCfgLock = Yes You should disable CFG-Lock in your bios instead of using this
AppleXcpmExtraMsrs = No
AppleXcpmForceBoost = No
CustomSMBIOSGuid = No If you have a Dell or VIAO motherboard, please enable this
DisableIoMapper = Yes
DisableRtcChecksum = No
ExtendBTFeatureFlags = No
LegacyCommpage = No
ExternalDiskIcons = No
ForceSecureBootScheme = No
IncreasePciBarSize = No
LapicKernelPanic = No If you have an HP laptop, please enable this
PanicNoKextDump = Yes
PowerTimeoutKernelPanic = Yes
SetApfsTrimTimeout = -1
ThirdPartyDrives = No
XhciPortLimit = Yes turn off after USB port mapping




ConsoleAttributes = 0
PollAppleHotKeys = No
ShowPicker = Yes
TakeoffDelay = 0
HibernateMode = None
LauncherOption = Disabled LauncherOption set correctly
LauncherPath = Default
PickerMode = Builtin
HideAuxiliary = No
PickerAttributes = 1
PickerAudioAssist = No
Timeout = 5
PickerVariant = Auto

AppleDebug = Yes
ApplePanic = Yes
DisableWatchDog = Yes
Target see the [Debugging Docs] for more info on debug target numbers
DisplayLevel see [Debugging Docs] for more info debug display levels
DisplayDelay = 0


AllowNvramReset = Yes
AllowSetDefault = Yes
ApECID = 0
AuthRestart = No
BlacklistAppleUpdate = Yes
DmgLoading = Signed
EnablePassword = No
Vault = Optional
SecureBootModel = Disabled SecureBootModel set correctly
HaltLevel = 2147483648
ExposeSensitiveData = 6
ScanPolicy = 0

You removed the tool EFIs

LegacyEnable = No
LegacyOverwrite = No
WriteFlash = Yes

UIScale = 01
DefaultBackgroundColor = 00000000
boot-args = -v keepsyms=1 agpmod=pikera alcid=7
run-efi-updater = No
csr-active-config = 00000000
prev-lang:kbd = 656e2d55533a30 (en-US:0)
SystemAudioVolume = 46



Automatic = Yes
UpdateDataHub = Yes
UpdateNVRAM = Yes
UpdateSMBIOS = Yes
UpdateSMBIOSMode = Create If you have a Dell or VIAO motherboard, please set this to Custom


SpoofVendor = Yes
AdviseWindows = No
**ProcessorType** = **4105**
SystemMemoryStatus = Auto
MaxBIOSVersion = No
SystemProductName = iMac20,2
MLB is set
ROM is set
SystemSerialNumber is set
SystemUUID is set



ConnectDrivers = Yes


EnableJumpstart = Yes
GlobalConnect = No If you have an HP motherboard and can't see APFS drives in OpenCore, please enable this
HideVerbose = Yes
JumpstartHotPlug = No
MinDate = 0
MinVersion = 0

AppleEvent = Builtin
CustomDelays = Auto
KeySubsequentDelay = 5
PointerSpeedDiv = 1
PointerSpeedMul = 1

AudioSupport = No
AudioDevice = PciRoot(0x0)/Pci(0x1b,0x0)
AudioCodec = 0
AudioOut = 0
MinimumVolume = 20
PlayChime = Auto
VolumeAmplifier = 0
SetupDelay = 0
ResetTrafficClass = No

KeyFiltering = No
KeyForgetThreshold = 5
KeySupport = Yes
KeySupportMode = Auto
KeySwap = No
PointerSupport = No
PointerSupportMode = ASUS
TimerResolution = 50000

TextRenderer = BuiltinGraphics
ConsoleMode = _-blank-_
Resolution = Max
ForceResolution = No
ClearScreenOnModeSwitch = No
IgnoreTextInGraphics = No
ProvideConsoleGop = Yes
DirectGopRendering = No
ReconnectOnResChange = No
ReplaceTabWithSpace = No
SanitiseClearScreen = No
UgaPassThrough = No

AppleAudio = No
AppleBootPolicy = No
AppleDebugLog = No
AppleFramebufferInfo = No
AppleImageConversion = No
AppleImg4Verification = No
AppleKeyMap = No
AppleRtcRam = No
AppleSecureBoot = No
AppleSmcIo = No
AppleUserInterfaceTheme = No
DataHub = No
DeviceProperties = No
FirmwareVolume = No If you plan to use FileVault2, please enable this
HashServices = No If you plan to use FileVault2, please enable this
OSInfo = No
UnicodeCollation = No

DisableSecurityPolicy = No If you have a Microsoft Surface device, please enable this
ActivateHpetSupport = No
ExitBootServicesDelay = 0
IgnoreInvalidFlexRatio = No
ReleaseUsbOwnership = No
RequestBootVarRouting = Yes
TscSyncTimeout = 0
UnblockFsConnect = No If you have an HP system, please enable this



Screen Shot 2021-04-26 at 2.09.26 AM.png

The issues resolved after I did the following:


1.   Used SSDT Time to create my own machine specific SSDTs

2.  Updated my BIOS to latest version for my ASUS Prime z490p motherboard

3.  Used OpenCore Configurator to validate and update NVMEfix and XHCIfix drivers

4.  Used the DisableRtcChecksum quirk

5.  Reset NVRAM and rebooted into the new EFI/config.plist


Everything works now.



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