For the first time ever, for any OS, I am seriously considering revering back to an earlier version. El Capitan has been nothing but a huge headache for AMD users. Here is my predicament (specs are in my sig).
- I have 2x HD7950 (in CFX) with 4 displays connected; Triple monitor setup for the desktop on the first card (I 'used' Eyefinity in Windows) via DVI and 2x miniDP and the second GPU is DVI out to my HDTV that is used exclusively for Kodi.
- In Yosemite I had ZERO issues booting with Enoch from the EFI partition, no garbled graphics before the desktop, sleep/wake worked flawlessly, and most important of all, I did not have to use the HD4000 IGFX for any reason.
- In El Capitan I in no way can boot WITHOUT enabling the IGFX AND a display connected, AND having it default boot device.
- If I don't I get black screens
- If I boot with it enabled but not default I only get one miniDP working and no IGPU despite boot flags (see below)
- In El Capitan using ONLY GraphicsEnabler=y nets me full QI/QE and all GPUs are correctly identified and accelerated however I get no DVI out at all on the AMDs, but works for the HD4000.
- I have to manually add AtiConfig=Hamachi (default is Futomaki) to enable DVI, AtiPorts=X does nothing!
- In El Capitan I do get sleep! But it wakes after 3 seconds to all displays and USB working, and then the system freezes about 5 seconds later causing me to do a hard restart.
- In El Capitan I get constant random graphics freezes when either watching videos in a window (player or browser) AND playing games windowed (like OpenEmu, Game of Thrones). Even system monitors like iStat and HWMonitor freeze as well as the system clock.
- To remedy the freeze all I need to do is click to the desktop as the mouse still works.
- Playing games and movies in 'True' fullscreen (i.e. Diablo III, Kodi) causes no issues, where as 'Windowed' fullscreen still causes random freezes.
Apple really dropped the ball on El Capitan. Maybe Tim Cook should stop worrying about SJW and 'diversity' issues and concentrate on their software flaws. Even real Mac users are experiencing USB and graphics issues. Sigh......