Yosemite black screen at boot

[drsoggy]

Hi. It takes me about three time to boot into my hackintosh. Right before the login screen the computer goes unresponsive and in power saving mode. I used the universe/multifail method and tried several installs. Here it is:

GA-z68x-ud3h-b3 with UEFI
i7-2600K @3.4GHz
16gb DDR3 @ 1333MHz
Kingston SSD
NVIDIA GeForce GTX 650 1024MB

multifail Configuration - 2015-03-14 08:56:01 ----------------------------------------------------------------- Quick Start > DSDT Free
Drivers > Audio > Realtek ALCxxx > ALC889

Drivers > Disk > 3rd Party SATA

Drivers > Disk > TRIM Enabler > 10.10.x TRIM Patch Drivers > Misc > FakeSMC v6.14.1364

Drivers > Misc > NullCPUPowerManagement
Drivers > Network > Realtek > RealtekRTL8111 v1.2.3
Drivers > System > AppleACPIPlatform Rollback > 10.9.5 AppleACPIPlatform Rollback
Bootloaders > chimera (chameleon, stolen and rebranded) v4.0.1
Customize > Boot Options > 1080p Display Mode
Customize > Boot Options > Basic Boot Options
Customize > Boot Options > Generate CPU States
Customize > Boot Options > Hibernate Mode - Desktop
Customize > Boot Options > Kext Dev Mode
Customize > Boot Options > Use KernelCache
Customize > System Definitions > iMac 12,2
Customize > SSDT Options > Sandy Bridge Core i7
Customize > Themes > tonycrapx86 remixed

Any advice on what to do? My Grafix card used to be natively supported.

Thanks!

[Hervé]

Hi, first of all, those tools and methods are not supported here but at TMX own web site, they develop them afterall, we don't know what's behind...

 

Then, 3 comments:

• you may have to proceed with a DSDT patch to inject your nVidia card info to the OS and get it recognized. Or maybe adjust your BIOS settings if that's at all possible.
• what's the reason for rolling back to 10.9.5 AppleACPIPlatform kext?
• assuming the option does what its name implies, do not opt for Generate CPU States (P and C states) on Ivy/Sandy/Haswell CPUs.