OK, Install these kexts wirh Kext utility in S/L/E, what's your vendor/device ID ? Mines are 0x68f91002 and that's the ones used in those Kexts. If yours are different, you may have to edit info.plist for AMD5000Controller.kext and AMDRadeonX3000.kext (in IOKit Personnalities under AMDCedarGraphicsAccelerator and IOPCIMatch) to make it works. When everything is OK, you no longer need GraphicsEnabler=Yes and Eulemur FrameBuffer in Chameleon.Boot.plist. Don't forget to rebuild permissions in S/L/E after installation but Kext Utility should automatically do it.
Enjoy Full QE/CI ! Good luck !Go to the full post