Hi, Jay.

Originally Posted By: JayO
Hey Mark,
I'm running almost the same setup here, with the exception of upgraded processors and video card (I've got a 5,1 w/ 2X 3.46 GHz, and a 7970 GPU), and I don't have any similar issues.

It's kind of a long shot, but I'm curious... have you upgraded to a metal compatible GPU, or are you still running the stock 5770 ?
I know from dabbling with a couple of Hackintosh builds I've been involved with, that sometimes the graphics card can cause some ioreg funkiness in Mojave.



Huh. That's interesting. I also do some video work on this box and it has an upgraded GPU, a Radeon RX580

Code:
Chipset Model:	Radeon RX 580
  Type:	GPU
  Bus:	PCIe
  Slot:	Slot-2
  PCIe Lane Width:	x16
  VRAM (Total):	8 GB
  Vendor:	AMD (0x1002)
  Device ID:	0x67df
  Revision ID:	0x00e7
  Metal:	Supported, feature set macOS GPUFamily2 v1


My issue could be related to that (entries do exist in the ioreg tree). Hard to know without knowing just what the PG Music devs are looking for with that grep on ioreg.

For me ripping out the video card is not really an option, not even for BiaB


.. mark.
(BiaB 2020 Mac; macOS 10.14.6; MacPro 5,1 56Gb 2xHex-Xeon RX580)