I have MSI Radeon R7 260 1GB OC and tried everything I know to make it work but without any luck.
1. Installed Yosemite, which has AMD8000 kext with kind of support, but very buggy. Worked a bit with replugging dvi ports, but eventually stopped working.
2. Now I'm on Mavericks 10.9.4, the card works ok, but isnt recognized and no acceleration. Tried with editing AMD7000 kext with 0x665D1002 (the cards id) - nothing. Tried with adding AMD8000 kext from Yosemite (with 0x665D1002 in it) - nothing.
So, is there a way to make this card work at all?