This error is due to a small EFI, by default Windows will create a 100MB EFI whereas macOS will expect 200MB. The most common way to see the TSC issue: Case 1 Note that you must open up the kext(ShowPackageContents in finder, Contents -> ist) and change the ist -> IOKitPersonalities -> IOPropertyMatch -> IOCPUNumber to the number of CPU threads you have starting from 0(i9 7980xe 18 core would be 35 as it has 36 threads total) Compiled version can be found here: TSCAdjustReset.kext (opens new window). So we'll need to reset the TSC on cold boot and wake with TSCAdjustReset (opens new window). This is a common example of screwed up TSC, for most system add CpuTscSync (opens new window)įor Skylake-X, many firmwares including Asus and EVGA won't write to all cores. To fix the issue, remove NullCPUPowerManagement from Kernel -> Add and EFI/OC/Kexts then enable DummyPowerManagement under Kernel -> Emulate # 15h/16h CPU reboot after Data & Privacy screenįollow directions here after UPDATE 2: Fix Data and Privacy reboot (opens new window) # macOS frozen right before login This is likely due to faulty or outright missing NullCPUPowerManagement, the one hosted on AMD OSX's Vanilla Guide is corrupted. # Frozen in the macOS installer after 30 seconds Specifically, add the following entry under Kernel -> Patch: Try running MacPro7,1 SMBIOS with the boot-arg agdpmod=ignoreįor MSI Navi users, you'll need to apply the patch mentioned here: Installer not working with 5700XT #901 (opens new window).Switch between different display outputs.# Black screen after IOConsoleUsers: gIOScreenLock. Alternatively, add enable-backlight-registers-fix | Data | 01000000 to PciRoot(0x0)/Pci(0x2,0x0)Īdditionally, verify issues mentioned in Stuck on or near IOConsoleUsers: gIOScreenLock.Coffee Lake and newer laptops, add -igfxblr to your boot-args.iGPU properties were setup correctly under DeviceProperties -> Add -> PciRoot(0x0)/Pci(0x2,0x0).EFI/OC/ACPI as well as ist -> ACPI -> Add) This may appear as "Boot legacy ROMs" or other legacy setting. Coffee Lake iGPU users may also need igfxonln=1 in 10.15.4 and newerĮnable CSM in your UEFI settings.This can also manifest as a "Divide by Zero" error. Trying various WhateverGreen Fixes (opens new window).Desktop UHD 630's may need to use 00009B3E instead. Double check that ig-platform-id and device-id are valid if running an iGPU.This is right before the GPU is properly initialized, verify the following: # Stuck on or near IOConsoleUsers: gIOScreenLock./ gIOLockState (3. In the recovery terminal set to September 1st, 2019:.Disconnect all networking devices(Ethernet, disable WiFi).Change date in terminal to when the certificate was valid.If you've download macOS before October 2019, you likely have an expired macOS Installer certificate, there's 2 ways to fix this: NVRAM -> Delete -> 7C436110-AB2A-4BBB-A880-FE41995C9F82 -> Item 0 then set it Type String and Value prev-lang:kbd We'll force remove that exact property and let OpenCore rebuild it: Still didn't work? Well time for the big guns. Note: Thinkpad laptops are known to be semi-bricked after an NVRAM reset in OpenCore, we recommend resetting NVRAM by updating the BIOS on these machines.You may also need to reset NVRAM in the boot picker as well UEFI Shell, Notepad++, etc), 656e2d55533a30 will become ZW4tVVM6MA= For those using with a simple text editor(ie. Set to 656e2d55533a30 for American: en-US:0 and a full list can be found in AppleKeyboardLayouts.txt (opens new window). Stuck on Your Mac needs a firmware update in order to install to this volumeĭefault sample config is in Russian because slavs rule the Hackintosh world, check your prev-lang:kbd value under NVRAM -> Add -> 7C436110-AB2A-4BBB-A880-FE41995C9F82. The recovery server cannot get contacted.15h/16h CPU reboot after Data & Privacy screen.Frozen in the macOS installer after 30 seconds.
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