I don't understand you.
My config has: change _DSM to XDSM, change EHC1 to EH01, change EHC2 to EH02, change GFX0 to IGPU, change ECDV to EC, change B0D3 to HDAU, change HDAS to HDEF, change HECI to IMEI
what wrong with my config?
I'll try your patch tonight and report later.