[Graphic Issue] Yosemite Installed Fine on Alienware M15X - Graphic still an Issue

[otosan]

Hi,

so i managed to install Mac OS X Yosemite on my Alienware M15x Laptop without any trouble, simply following the unibeast guide and my previous experience installing ML & Mavericks on the same laptop,

most of the thing work directly post installation,

but the main issue is the graphic. it seems that the system wont load a proper .kext for my graphic card, thus i only can get 1024x768 resolution,

and in about mac display, it showed as "Display 3MB"

My Full Specs are :

Alienware M15X
Nehalem i7 - 920XM
NVIDIA GTX460M
DDR3 1333Mhz 16GB
SSD + HDD

Currently running Mac OS X 10.9.5 with 99% of Hardware Working (put aside battery) including Speedstep, GPU stepping & Full Accel, WiFi, Bluetooth, Backlight & All else,

Graphics is working out of the box with Mavericks, i only added SSDT for CPU stepping,

any idea what i might have to do to make it works in Yosemite?

Note :

I only managed to enter installation screen after i removed graphics kext from unibeast thumbdrive (but of course the current real OS Drive has the kext in it)

 

[otosan]

manage to fix the graphic,

but now it takes very long time to login the system, (actually it take sforever to login after entering password)

is there a way to bypass login screen?