My problem is FCPX and iMovie. Both crash immediately upon opening.
My setup:
GA-z97x gaming 7 mobo
4790k
2 x XFX AMD RX 480 8gb
I did the edits to the 4100 Kexts. ATI injected in clover. It boots up fine. Everything works well, even the benchmarks look good. 3 monitor setup is great. My only problem is FCPX. FCPX works fine if only IGFX is used. It worked with GTX 770 before. Crashing happens if either or both RX 480 cards are used. I can even boot with just the IGFX, start FCPX, and then plug in the RX 480 card, drag FCPX window to the AMD connected monitor and it works. But, quit FCPX and reopen... crashes.
Any clues where to look next?