I've tried closing the lid and plugging in an external keyboard, and that brings me to the situation in my second post where I get that ThinkPad startup screen on the external monitor but can't interrupt it with F1 to get into the BIOS. Clearly it makes some kind of a difference however since leavin...

Adding some additional context after some testing: I've experimented with trying to convince the laptop the lid is closed to see if that makes it output externally. When I boot it up normally (lid open when pressing the power button, the external monitor is black until it displays the Lakka linux sp...

I am trying to access the BIOS for an X220 Tablet so that I can enable booting from a USB, as the current OS installed on it is broken. Unfortunately, the screen of the actual laptop is broken, and if I understand correctly, by default, the BIOS only outputs to its primary monitor (the laptop screen...