Hi guys, So I have a Mac Pro 5,1 which I have had an R9 390 in for about 2 years now with little issues beyond having to add the device ID to the two kext files. I use a GT120 for the boot screens and previously didn't have any issues until now. I hadn't used MacOS for a few months on this Mac and updated it to 10.13.6 High Sierra and noticed that the info.plist in the new AMD kexts is a different layout than before, so as usual I added the device ID next to where the 290X/390X device IDs were rebooted and had display output on the R9 390 again. However I now have flickering, the dock is white, depending what resolution I have menus going grey, changing colour and it seems there's no hardware acceleration running anymore. Reminds me of using MacOS in VMware. I have tried installing the old kexts but then I get nothing as they don't work on 10.13.6. I have also tried the hex edit on the hackintosh forums but then the driver again won't load. Does anyone else on here use an R9 290 or 390 in MacOS and can help me resolve this issue? Is this fixed in Mojave? I really would like to get this working as I am not in the market for a new graphics card or system right now. Cheers.