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macOS 11 Big Sur  

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Trusted Member
Joined: 3 years ago



As of macOS 11.2 beta 2, my MacBook won't sleep when the lid is closed. Not even when unattached to the eGPU.

I tried a PRAM reset, but that resulted in an unbootable MacBook. After reinstalling the OS in recovery the lit closing again triggers the sleep function.

Then when I reupdated to 11.2 beta 2, the problem reoccurred. I checked, but when I manually put it to sleep and close the lid, openening it back up does wake the MacBook. 

Have you seen this issue? If so, do you have a solution?

MBP11,4, i7-4980HQ, 256gb SSD, 16gbRAM Cathalina (Sonnet Breakaway box 350 + Gigabyte Radeon RX 580 Gaming 8GB)
MacBook7,1 A1342, P8600 120gb SSD 4gbRAM. Mojave (Hiking/Camping)
iMac7,1 A1224, T9500 CPU upgrade 120gb SSD 4gbRAM. HS
Mac mini3,1 P7350, 250gb SSD 8gbRAM. HS (server) iPhone10,3 64gb. iOS12 iPad5,3, 16gb. iOS12 iPod shuffle 2nd gen. 2gb

2015 15" MacBook Pro [4th,4C,H] + RX 580 @ 16Gbps-TB2>TB3 (Sonnet Breakaway 350) + macOS 10.14 [build link]  

Prominent Member
Joined: 4 years ago

11.3 beta is out

MacBook Pro 13" 2020 Touch Bar M1 8-core CPU 8-core GPU - 16GB unified memory - 512GB PCIe SSD
MacBook Pro 13" 2020 Touch Bar i7 quad-core 2.3Ghz - 16GB RAM - 1TB PCIe SSD

my awesome Radeon VII eGPU
my Mantiz Venus extreme mod with Sapphire Nitro+ RX Vega 64

2018 13" MacBook Pro [8th,4C,U] + Radeon VII @ 32Gbps-TB3 (Mantiz Venus) + macOS 10.15 [build link]  

Trusted Member
Joined: 10 months ago

This is certainly very non-scientific, but I've had the 11.2 update installed since it was publicly released and haven't suffered a green screen lock-up yet. I've even tried to make it happen by doing things that usually Locke dit up (Multitasking with lots of documents and Safari windows and some other programs like Discord and maps running etc. Scrolling google pictures seemed to set it off something fierce for some reason). A problem I had with alarming frequency when I went from Catalina to 11.1 on a clean install.

So fingers crossed and knock on wood, at east for me 11.2 is stable. Gaming wise I don't detect any major regressions or anything either (Tomb Raider and X-Plane mostly. Yea, I know I'm cool). 

2018 Mac Mini [8th,6C,B] + RX 5700 XT @ 32Gbps-TB3 (Razer Core X) + macOS 10.15.5 [build link]  

New Member
Joined: 4 months ago

@irakly_shanidze_1, I ran into this problem as well my recovery OS is Catalina your remedy seems logical. My issue is that I don't know exactly what files to copy to the "downloads" folder in order to create a startup/install disk you mentioned. I would appreciate direction as to where to copy from, to paste into "downloads" folder. I am currently running BigSur 11.2. Bottom line, I want to get Purge-Wrangler running my eGPU box. It was fine until I made the upgrade to BirSur. Thanks.


To do: Create my signature with system and expected eGPU configuration information to give context to my posts. I have no builds.


Sony PSHome
New Member
Joined: 4 weeks ago
Posted by: @lmnope1

@mac_editor is is possible to load purge wrangler via kernel extensions? Kext installation does not require SSV to be disabled.

I am seeking some way to keep filevault enabled (not disabling authenticated-root) and also install purge wrangler.


Edit - I installed the AMDLegacySupport and AutomateeGPU kexts using this tool, and my eGPU works! Did not have to disable authenticated-root, and my filevault is intact!


2015 Macbook Pro with AMD M370X

Big Sur 11.1 (20C69)

AMD 5700 in Sonnet Breakaway box

Connected over TB2

hi, can  i have both kexts?

To do: Create my signature with system and expected eGPU configuration information to give context to my posts. I have no builds.


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