Cataprat Posted January 16, 2021 Share Posted January 16, 2021 Hi everyone, i'm trying to install Catalina on my Dell OptiPlex 3080MFF but i always get Kernel Panic. I followed the Opencore dortania guide in version 0.6.5, please could someone help me? My EFI folder here https://drive.google.com/file/d/1O9nESea7fj76KsIAIYe7V1G73miGLAoJ/view?usp=sharing Hardware: BIOS: Latest CPU: Comet Lake i5-10500T Graphics: UHD 630 RAM: 16GB DDR4-2666 Link to comment Share on other sites More sharing options...
Administrators Hervé Posted January 16, 2021 Administrators Share Posted January 16, 2021 You're using Lilu v1.5.0 and I read it could cause issues. Try with the previous version. Link to comment Share on other sites More sharing options...
Cataprat Posted January 16, 2021 Author Share Posted January 16, 2021 I moved to version 1.4.9 of Lilu, but received the same kernel panic Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted January 16, 2021 Moderators Share Posted January 16, 2021 error points to VirtualSMC and graphics. Try latest kexts build from here. Update Lilu, Whatevergreen, AppleALC, VirtualSMC For graphics, add the following Link to comment Share on other sites More sharing options...
Cataprat Posted January 17, 2021 Author Share Posted January 17, 2021 updated all kexts to the latest build / commits and apply framebuffer-patch-enable: 01000000 , framebuffer-stolenmem: 00003001 but kernel panic persist. Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted January 17, 2021 Moderators Share Posted January 17, 2021 Try replacing your EFI with this Link to comment Share on other sites More sharing options...
Administrators Bronxteck Posted January 17, 2021 Administrators Share Posted January 17, 2021 if that does not work you might have to set DVMT in shell. you would have to find the values for your system bios. Link to comment Share on other sites More sharing options...
Cataprat Posted January 21, 2021 Author Share Posted January 21, 2021 After reading the opencore guide several times, I was able to install Big Sur. Everything works fine, but I can't configure 4K @ 60 in my monitor. The maximum resolution I can get is 1440p. what do i need to do to get 4K @ 60? thanks for helping ... follow my EFI and config ... Optiplex_3080_Micro_EFI.zip Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted January 21, 2021 Moderators Share Posted January 21, 2021 you'll need to set DVMT with EFI shell as Bronxteck said above Link to comment Share on other sites More sharing options...
Cataprat Posted January 21, 2021 Author Share Posted January 21, 2021 6 hours ago, Jake Lo said: you'll need to set DVMT with EFI shell as Bronxteck said above ok I will try. just one more thing, my audio codec is the Realtek ALC256, the sound only appears when I plug in a USB Headset or a JBL GO Bluetooth. The internal Speaker does not appear in the audio output options, I have tried all the layout-ids. I need to do something more. thanks for helping... Link to comment Share on other sites More sharing options...
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