With the patched ACPI tables or without them, the current graphics fix will insure the problems exist. However, without the graphics fix no problem ... I tend to believe it is not something missing in our _WAK or PNLF._BCM rather than a missing patch to complete the graphic fix ... I may be wrong but I hope not!
You simply cannot compare results with/without the Haswell graphics fix (FakePCID+device-id=0412).
Without the fix, QE/CI would be disabled and you'd be using VESA graphics drivers.
If you're talking about disabling only part of the fix, then you should clarify.