Lastest Mojave Security Update - Green Screen before boot after verbose

[deevey]

So Since after installing the latest Mojave Security update, I'm getting a Green Screen between Verbose and Apple Loader lasting appx 60 seconds. 

Everything works  after that, but its annoying as hell.  

Have tried a couple of Platform ID's and SMBios without any luck.

Same result in both OpenCore (6.0) and Clover (5120). Latest WEG / Lilu

System has not had any issues the past 9 months using 0x51960009 / 59168086 or 0x3EA50004 / E39B8086 

Same Result regardless if Properties are added via Clover Devices or via SSDT 

Using Single 1920x1080 monitor 

Config Attached

I hope Apple didn't screw with the driver on this update. 

config.plist.zip

Edited August 13, 2020 by deevey

[MaLd0n]

ur processor is kabylake or coffeelake?

[deevey]

Kabylake-R 

Here's a realtime video of what's happening on Boot. 

 

Edited August 14, 2020 by deevey

[deevey]

Fixed the Green Screen issue by changing Connector in Hackintool to HDMI - but now I've lost HDMI Audio

Edited August 14, 2020 by deevey

[MaLd0n]

Quote

<key>PciRoot(0)/Pci(0x02,0)</key>

            <dict>

                <key>AAPL,ig-platform-id</key>

                <data>AADAhw==</data>

                <key>device-id</key>

                <data>FlkAAA==</data>

                <key>framebuffer-con1-alldata</key>

                <data>AQUJAAAIAACHAQAA</data>

                <key>framebuffer-con1-enable</key>

                <data>AQAAAA==</data>

                <key>framebuffer-con2-alldata</key>

                <string>&lt;02040a00 00080000 87010000&gt;</string>

                <key>framebuffer-con2-enable</key>

                <data>AQAAAA==</data>

                <key>framebuffer-fbmem</key>

                <data>AACQAA==</data>

                <key>framebuffer-patch-enable</key>

                <data>AQAAAA==</data>

                <key>framebuffer-stolenmem</key>

                <data>AAAwAQ==</data>

            </dict>

 

[deevey]

Well that worked - kinda

I used your patch, rebooted - great ! no green screen and HDMI audio once again.  

However a couple of boots later the green screen appeared again - strange. 

I noticed I had an Apple folder in EFI - deleted it - reboot, no green screen - Nice! 

However I could no longer open Hackintool - it crashed every time. 

Put back my original ID 59160009 and everything is now back to normal. 

Strange how that happened but the machine is 100% again. 

Thank you for your help once again.  

Edited August 15, 2020 by deevey

[MaLd0n]

enjoy

[deevey]

Just thought I'd report back ...

So the same thing started happening again, but this time would not even get into MacOS with QE/CI whatsoever. But would boot with no patch. I spent another half day trying to figure it out with various combinations of patches, fixes etc.. before turning to hardware as a possible cause. 

Turns out it was only a bad HDMI Cable 😂 nothing else - Ouch! 

Don't know how or why that would only affect enabled graphics, but it did. Strange
 

Edited August 17, 2020 by deevey

[MaLd0n]