Im trying to reformat a macbook air ssd with a faulty display, it is proving to be more difficult than i thought. I have tried both using a usb boot disk and my superdrive.
I just change the startup disk in preferences and reboot the mac.
It does work but the problem is once the macbook reboots the external display doesnt show whats on the screen.
I have tried closing the lid to get into clamshell, have tried different keys or clicking trackpad.
It seems macbook will only switch over to external display when booted up normally to desktop.
But maybe there is something I can do, is there...?
I just change the startup disk in preferences and reboot the mac.
It does work but the problem is once the macbook reboots the external display doesnt show whats on the screen.
I have tried closing the lid to get into clamshell, have tried different keys or clicking trackpad.
It seems macbook will only switch over to external display when booted up normally to desktop.
But maybe there is something I can do, is there...?