pastrychef
Moderator
- Joined
- May 29, 2013
- Messages
- 19,458
- Motherboard
- Mac Studio - Mac13,1
- CPU
- M1 Max
- Graphics
- 32 Core
- Mac
- Classic Mac
- Mobile Phone
Sorry @pastrychef it's been a while and been very busy lately. Glad your hack is working perfectly with the iMacPro1,1 definition.
So I'm assuming you now disable the iGPU?
What about Quicksync now the iGPU is disabled? Out of curiosity can you still have the iGPU enabled with the iMacPro1,1 definition?
I've been running into a few random darkwakes too from the iMac19,1 definition too so I'm looking to switch definitions
Yes, I currently have IGPU disabled. Some people have IGPU enabled with iMacPro1,1 but I haven't personally tried that yet.
Obviously, we lose Quick Sync with IGPU disabled, but the changes in the way graphics is handled in macOS 10.14.5 pretty much negate any disadvantages to having Quick Sync disabled. As far as I can tell, h.264 and HEVC are handled perfectly now. I use the Sony Food Fizzle demo video in QuickTime as a test. This video will bring Skylake and older systems to its knees but it's buttery smooth with iMacPro1,1 system definition in 10.14.5.
As for encoding, all those who have been using iMacPro1,1 system definition with FCPX seem to have no complaints. There are a few users who have been experiencing slow GPU performance, but that's a separate issue.
The darkwakes was probably the primary reason that triggered me to try iMacPro1,1 and it's been a revelation.