linuxchan6 Posted August 24, 2020 Share Posted August 24, 2020 I am attempting to install Catalina on a Dell Precision 5510 with 4K screen with Opencore. After I selected the Install Catalina (external) option, there is only a black screen and installation does not begin. I have attached my EFI file. Any help is appreciated. EFI.zip Quote Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted August 27, 2020 Moderators Share Posted August 27, 2020 Unless you have set the DVMT in the BIOS, you'll need to enable these 2 quirks under Kernel AppleCpuPmCfgLock AppleXcpmCfgLock Quote Link to comment Share on other sites More sharing options...
linuxchan6 Posted August 29, 2020 Author Share Posted August 29, 2020 Thanks Jake. That was it. I am able to install now. Quote Link to comment Share on other sites More sharing options...
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