Pre-boot display output on laptops, how to trigger
Most laptops don't automatically use the TinyPilot as an external mirrored display during startup. It has to be triggered manually via keyboard command or some other function. On our laptops, they key command is 'Fn'+F8. I could not find a way to trigger that key command remotely however.
Is it possible to send 'Fn'+F8 at all?
- 4 replies
- Michael Lynch @michael2021-06-18 22:02:40.618Z
You should see
F8appear on the bottom of your screen when you push Fn+F8. Does this appear?
The OS doesn't see the
Fnkey. It's just on your keyboard to let you press the
F8key. You can verify this by visiting keycode.info, which should show nothing happening when you press
Some laptops don't accept external keyboard input during boot. You can try testing a USB keyboard in the laptop to see if it accepts an F8 from the keyboard. If it doesn't work with a physical keyboard, TinyPilot won't be able to enter input either. You can also check the laptop's BIOS settings for options regarding keyboard or display during boot.
- Michael Lynch @michael2021-06-21 19:42:41.465Z
It could be a hardware limitation. Would you mind sharing your logs to see if there are any clues there?
They're available under System > Logs > Get Shareable URL