Actually, just recently I did manage to find a way to set the gpu-power-prefs EFI variable from within OS X. I made a tool that implements it: http://dosdude1.com/apps/MacBook%20Pro%20dGPU%20Disabler.zip …
It's just Terminal syntax (using NVRAM command). It's formatted as follows: "nvram <UUID>:<EFI var name>=<value>". So in the case of the GPU patch, that is: "nvram fa4ce28d-b62f-4c99-9cc3-6815686e30f9:gpu-power-prefs=%01%00%00%00".
-
-
I've also implemented this into a helper LaunchDaemon, which is installed using the tool I linked earlier.
Thanks. Twitter will use this to make your timeline better. UndoUndo
-
-
-
I had to go back to High Sierra from Mojave, how do I undo this patch to get the AMD working again???
Thanks. Twitter will use this to make your timeline better. UndoUndo
-
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.