pastrychef
Moderator
- Joined
- May 29, 2013
- Messages
- 19,464
- Motherboard
- Mac Studio - Mac13,1
- CPU
- M1 Max
- Graphics
- 32 Core
- Mac
- Classic Mac
- Mobile Phone
We tried all 3 DisplayPorts and they all end up with the same black screen.
I turned on verbose logging and the boot process seems to die with a gIOScreenLockState value of 3. When I have seen this in the past, it was an Aptio memory issue, which I thought was solved by the latest AptioMemoryFix driver, which we are using. We switched back to OsxAptioFix3Drv, with and without Radeon DeInit checked and haven't had any luck.
Any other ideas?
If memory serves me correctly, I didn't need RadeonDeInit when I was on High Sierra. With the latest versions of WhateverGreen, that shouldn't be used anyway.
gIOScreenLockState is definitely a graphics error. If your previous problems were solved by changing to a different Aptio fix, it was most likely due to NVRAM not having the nvda_drv=1 to enable the Nvidia web drivers. This should not be an issue for a Vega.
My only guess is that the non-standard ports of your particular Vega card does not play well with macOS. I don't know if WhateverGreen has any fix for this. Try checking the Github page to see if there are any arguments that can be enabled to help with non-standard port configurations.