- Joined
- Dec 15, 2020
- Messages
- 4
- Motherboard
- T440s
- CPU
- i7-4600U
- Graphics
- HD 4400
I just attempted to boot latest Big Sur installer on VGA with Secure Boot on and I can confirm that everything works. Mouse did not work properly initially (macOS mirrors contents of both screens, but does not mirror mouse pointer), but closing the lid resolved the issue for me.