Follow my ACPI patching guide as written.
also don't understand this part shooud I copy the code in the text refs or ??
First create refs.txt in the directory where your DSDT/SSDT files are:
Code (Text):
External(MDBG, MethodObj, 1)
External(_GPE.MMTB, MethodObj, 0)
External(_SB.PCI0.LPCB.H_EC.ECWT, MethodObj, 2)
External(_SB.PCI0.LPCB.H_EC.ECRD, MethodObj, 1)
External(_SB.PCI0.LPCB.H_EC.ECMD, MethodObj, 1)
External(_SB.PCI0.PEG0.PEGP.SGPO, MethodObj, 2)
External(_SB.PCI0.GFX0.DD02._BCM, MethodObj, 1)
External(_SB.PCI0.SAT0.SDSM, MethodObj, 4)
External(_GPE.VHOV, MethodObj, 3)
External(_SB.PCI0.XHC.RHUB.TPLD, MethodObj, 2)
Note: A handy way to create refs.txt is to use pbpaste in Terminal. Copy the text above to the clipboard (I'm assuming you know how to do that), then:
Code (Text):
pbpaste>refs.txt
That will create refs.txt in your current working directory.
Then use it during disassembly: