- Joined
- Apr 12, 2020
- Messages
- 65
- Motherboard
- Dell OptiPlex 380 vA07
- CPU
- E7500
- Graphics
- NVS 410
- Mac
- Mobile Phone
I've managed to boot into the Big Sur installer on both my Optiplex 380 via OpenCore (see this thread) and on my Mac Pro 3,1 - however in both cases the keyboard and mouse don't respond and I can't progress any further than the language selection screen. On further inspection, there's no signal going to the keyboard as pressing Caps Lock doesn't turn the light on.
I thought the problem might be that Big Sur doesn't recognise USB 2 ports (AFAIK every supported Mac only has USB 3 and above); however I've got a USB 3 card in my Mac Pro and it doesn't recognise that either.
I can't see this problem reported anywhere else, and I'm not convinced it's specific to my EFI as a "real" Mac, albeit an unsupported one, has the same problem.
I thought the problem might be that Big Sur doesn't recognise USB 2 ports (AFAIK every supported Mac only has USB 3 and above); however I've got a USB 3 card in my Mac Pro and it doesn't recognise that either.
I can't see this problem reported anywhere else, and I'm not convinced it's specific to my EFI as a "real" Mac, albeit an unsupported one, has the same problem.
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