If you are a Mac users, so you can download the macOS High Sierra 10.13 from App store but if you are PC user then you’ve got the chance to do it from the guide here. In our previous article, we downloaded the macOS High Sierra VMware Image. Welcome to AMD OS X. Why not register now to gain full access. 10.13 High Sierra. Specs of Dell Inspiron 5675: CPU: AMD Ryzen 7 1800X GPU: AMD Radeon RX 580 8GB Motherboard: I don't know, it's a stock Dell one that supports Ryzen I guess?
Thanks, for the reply. I added Intel fake ID 0x04128086, and ig platform 0d220003 as you suggested and it didn't change anything. I removed Inject ATI and as you said the display in About This Mac is R9xxx (I'm okay with that as long as things work). When I Inject ATI it does display properly as RX 480, but I know that's just cosmetic. When I run both monitors off the RX 480, the one on DisplayPort works perfect, and the one on HDMI is pixelated and rough. Both monitors have both DP and HDMI inputs, so when I switch the cables around, it makes no difference. HDMI does not work correctly, but DP does.
I will have to go out and get a second DP cable I guess, which is fine. See screen shot below to see what it looks like on HDMI. EDIT: I don't have 4k monitors - both are 1080p high quality IPS displays with accurate color (Dell U2413 and HP LP2475w). My bigger issue is that Final Cut Pro crashes as soon as I try to open a library. This has been an issue since upgrading to FCPX 10.3. FCPX 10.2.2 and 10.2.3 were working fine on my old R9 280x, even in Sierra. When I upgraded to FCPX 10.3 this problem started.
I removed the R9 280x as a test, and FCPX works fine (albeit slowly) with IGPU and no graphics card installed. When I reinstalled my 280x, the displays never came back on. I tried everything I could think of and I think that card just failed, so I replaced it, hoping that would also fix my FCPX 10.3 problem. Now my new RX 480 shows the same behavior in FCPX 10.3. I really need to resolve that - I know others are running FCPX 10.3 with a RX 480, so I'm trying to hunt down the issue.
Any ideas of where to look? Can I provide my crash report, or something from Console, that those who are smarter than me can look at?
I have reached the limits of what I can do on my own and I need help.