Followed the OpenCore directions exactly. (Actually one mistake because I didn't read the installation directions carefully enough. I corrected on my second try.) I am nowhere near as experienced as many who have done this. It took many hours of reading and research but was worth the effort. This is a clean install on a new SSD because the Catalina installation I had was a mess. (kexts in /library/extensions and in Clover) All kexts are now in my OpenCore efi.
SMBIOS 15,1.
View attachment 503731
Working:
Dual screens with internal graphics and Radeon RX580.
WiFi (have an Atheros AR93xx Wireless so had to search for a .kext)
Ethernet
Sound (onboard ALC887 Layout 1)
Messages
Sensors using HWMonitor
USB ports (USB System Information reports a USB 3.0 Bus although don't know for sure if USB 3 is up to speed because I have no USB 3 devices.)
Apple Wireless Keyboard 2003 (Purchased with a G5 PowerMac)
Apple Magic Trackpad 2
Not working:
Airdrop (System Information reports that the WiFi card supports Airdrop but I'm thinking my USB dongle might be the problem. System Information reports handoff not supported Broadcom Chipset 20702A3. Tried the Airdrop enabler with no success. )
Quirk:
Sometimes on restart, forgets Desktop and Screen Saver settings. Read something about this on one of the Apple Developer forums having something to do with the dual screen. Unplugging the second screen and then saving settings was reported to fix the problem. I'd be grateful for any help with this.
Installed 11.01 and upgraded to 11.1 using Software Update.
Attached is the working config.plist file minus my serial numbers. I constructed the EFI folder first then used ProperTree to construct the plist from the sample. Used the <CMD>-R function to have ProperTree do most of the heavy lift. ProperTree will populate much of the plist for you and put the kexts in the proper load order.
As I said earlier, I'm not that experienced but I would be happy to help if I can.