jamdox Posted February 4, 2018 Share Posted February 4, 2018 I have the above older cards, both work OOB and are supported. I prefer to have the AMD as the primary card and the Nvidia there in case I want to run an application with CUDA. The problem is that the screen will be black on login when plugged in to the AMD card. At that point I can switch the output to the Nvidia and it will work fine. I haven't tested with the AMD in the secondary slot, but it doesn't matter, since I also want to be able to see the boot process taking place, which means having my monitor plugged into the primary card. I'm really at a loss for troubleshooting this, I've tried adding various lilu-based "fixes" to the kext directories on the EFI/Clover part of the EFI partition. Installing Nvidia web drivers didn't help, either. Thanks in advance. Link to comment Share on other sites More sharing options...
MARZILLO Posted February 4, 2018 Share Posted February 4, 2018 try this http://www.insanelymac.com/forum/topic/305938-fix-fix-for-black-screen-on-amd-7xxx-cards/page-5 post 81 Link to comment Share on other sites More sharing options...
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