Jammyjam1982 Posted December 3, 2020 Share Posted December 3, 2020 Hello, This is my first post on this forum I have succesfully installed Big Sur on my kinda old I7 2600 Sandy Bridge PC My videocard RX 570 is working, but when I connect the HDMI Big Sur is booting until the Videocard is activated and then I get a black screen. Strange thing is that HDMI is working when I boot with the Opencore 0.6.3 USB stick. I copied the exact settings of the EFI on the USB to the SSD EFI but then HDMI stopped working. Does anyone have a solution for this problem. How do I activate all the ports of this card? I have tried the AMD Framebuffer but that does not work. Take a look at my config.plist Thank u ! Grz Jerry Config.plist Quote Link to comment Share on other sites More sharing options...
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