:FIX/GUIDE: AMD Stuck At Grey/White Screen With Spinning Beachball

[assassinXsoul]

this will solve you beach ball spinning infinite grey/white screen {censored} ok i got this working the procedure is as follows on two different boards

asus m5a97 evo r2.0

gigabyte 990fxa-ud3

and two different graphics cards

gigabyte ati hd 79870 2gb

xfx hd5770

my processor is a amd fx 8350
32gb ddr3 gskill ram

I AM ALSO USING GPT

i can now easily play might and magic x legacy on full graphics settings

ok i used a certain kernel and the stock graphics drivers if you wish to change that it may or may not work

ok procedure you now need to have kext wizard handy

you need to head over to here for the AMD kernel

http://www.insanelym...ttach_id=157955

inside that file is the kernel and the system.kext

now you need to go over to here to grab the other two kext IOPCIFamily.kext + AppleACPIPlatform.kext for yosemite

http://www.insanelym...t-for-yosemite/


you will also need amd webkit patch

http://www.insanelym...ttach_id=154087

now i want you to place all kext on the desktop
if you have backed up your graphics drivers during or after the install you should be able to boot with just

npci=0x2000 PCIRootUID=1 -v

if not you will also need to add

-f -x

now once you are at your desktop you need to move the kernel over to System/Library/Kernels
so rename your original kernel to kernel.backup1 then overwrite it with the new one

you will then open up kext wizard and use the install pane to install

system.kext
IOPCIFamily.kext
AppleACPIPlatform.kext
(also if you backed up your graphics drivers nows the time to reinstall them)

then i want you to keep kext wizard open and install the amd webkit patch after installation has finished go back to kext wizard and repair permissions (click both boxes on the bottom half)

then reboot some of you still may have to use -v and -f

i have mine booting with full acceleration
without -f -v

 

 

 

 

 

enjoy 

•  

[diontoradan]

thank you for the wonderful hack, it worked on chameleon, but when i switch to clover System.kext conflict with the old one.

on clover boot it displays:

 

"Refusing new kext com.apple.kpi.xxx v.14.1 (the one in the new system.kext); already loaded v.14.0"

 

then i got beachball of the death.

how did clover load the old kext when the new kext already loaded?

 

[KemalALKIN]

Wow Worked fx6100 and fx83xx

[diminaband]

Awesome, I have been at this for days and this helped me get it booting without having to enter anything at startup. Now just to get internet working :/