Dual monitors can be quite tricky. You may need to come up with a compromise, such as booting with a single monitor and turning on the other at the desktop. Things to be aware of:
in the BIOS:
- you typically want to disable internal graphics, and make PEG primary
- you typically want to disable CSM (but be aware this affects installing Windows). CSM is support for legacy hardware, and will affect which monitor is "primary". With CSM enabled, VGA will be primary (VGA -> DVI -> HDMI -> DP), and with CSM disabled, DP is primary (IIRC) (DP -> HDMI -> DVI -> VGA). note you want to avoid VGA on macOS, some report it works but you want to stick with a digital output
in the clover config:
- you want to make sure you aren't confusing clover by setting two different graphics. set inject intel and nvidia to false, get rid of any nv_disable, make sure there is no ig_platform_id, and finally set nvidia web to true
- you want to use a compatible SMBIOS, such as iMac 14,2. if you use macPro 6,* or iMac 15,* or iMac 17,* you need to add lilu.kext and nvidiaGraphicsFixup.kext
you want to keep everything up to date - clover, and any kexts in your clover EFI (and if you install any hackintosh kexts in /Library/Extensions or /System/Library/Extensions)
