-f: Ignore all cache and force OS X to reload the kexts inside System/Library/Extensions and Extra/Extensions. Remove this flag after you have installed all the additional kexts needed.
UseKernelCache=No: Disable kernel cache.
-v: Show verbose screen when booting or shutting down, useful for debugging errors.
-x: Boot into safe mode, won’t load graphics kexts, can overcome the GPU related error on some PC.
dart=0: Avoid conflict when vt-d is enabled in BIOS. Most Dell laptops need this.
cpus=1: Avoid lapic kernel panic which causes auto restart. Some HP laptops and AMD CPUs need this.
GraphicsEnabler=Yes/No: If Yes, Chameleon will auto-detect the GPU and inject the needed information into OS X in order to load the right kexts; if No, Chameleon will inject the GPU’s original information, use this when Yes isn’t working.
InjectIntel-ig=x: x is the id of Intel’s iGPU, use to inject ig-platform-id for HD 4000/4400/4600/5000/Iris.
IntelAzulFB=x: x ranged from 0 to 15, inject available ig-platform-id from Chameleon for HD4400/4600/5000/Iris.
IntelCapriFB=x: x ranged from 0 to 11, inject available ig-platform-id from Chameleon for HD 4000.
EnableDualLink=Yes/No: Use to inject Dual Link information for Intel’s iGPU. Use No for 1366x768 resolution; use Yes for 1600x900 resolution or higher.
AtiConfig=xxxxxx: Set the personality for your AMD card. It's required to get some AMD card working.
PCIRootUID=0/1: Some PCs set the default UID in the DSDT as “ Name (UID, <value>” which can cause black screen when booting ( especially PCs use discrete GPU ). Changing the value will help fixing the problem.
npci=0x2000/0x3000: Use it ì you're stuck at PCI Configuration begins.

1st Generation Intel HD Graphics

-f -v

-f -v -x

Intel HD 3000

1366x768 resolution:



-f -v GraphicsEnabler=Yes EnableDualLink=No

-f -v GraphicsEnabler=No EnableDualLink=No



1600x900 resolution or higher:



-f -v GraphicsEnabler=Yes EnableDualLink=Yes

-f -v GraphicsEnabler=No EnableDualLink=Yes

Intel HD 4000

Desktop:



-f -v GraphicsEnabler=Yes IntelCapriFB=10



Laptop with 1366x768 resolution:



-f -v GraphicsEnabler=Yes IntelCapriFB=3



Laptop with 1600x900 resolution or higher:



-f -v GraphicsEnabler=Yes IntelCapriFB=4

Intel HD 4400/4600

Desktop:



-f -v GraphicsEnabler=Yes IntelAzulFB=10



Laptop:



-f -v GraphicsEnabler=Yes IntelAzulFB=12

Intel HD 5000/Iris:

-f -v GraphicsEnabler=Yes InjectIntel-ig=08000931

nVidia - AMD:

-f -v GraphicsEnabler=Yes

-f -v GraphicsEnabler=No

-f -v GraphicsEnabler=Yes PCIRootUID=0

-f -v GraphicsEnabler=No PCIRootUID=0

-f -v GraphicsEnabler=Yes PCIRootUID=1

-f -v GraphicsEnabler=No PCIRootUID=1

Sandy-E/Ivy-E:

npci=0x2000

AMD CPU:

cpus=1

cpus=1 npci=0x2000