Will UEFI firmware/shell display on external monitor (broken laptop screen)

Support
1

Hi,

I have a chromebook with a broken display (LILLIPUP), currently it has stock chromeOS and i’ve removed/disconnected the broken display as the glass was shattered everywhere. It does boot up to chromeOS on an esternal display, but the developer mode warning screeen/recovery screen does not display on the exsternal monitor.

I’m wondering if I flash the UEFI firmware if it will output to an external display during POST where i will be able to choose boot device, UEFI shell ect or if it will only displays on laptop display. If not i would be flying blind and would be better off leaving chromeOS on here. Unfortunately replacement display cost more than laptop is worth.

Thanks.

2

Just tested on my ELECTRO and couldn’t get it to show up on my monitor, but that doesn’t mean it’s not impossible.

In the past, I was able to disconnect the LCD cable from the motherboard to see the dev mode screen on a monitor so that might work.

3

Thanks for the reply. I’ve completely disconnected/removed the display from the laptop and the dev mode screen does not show up so i’m guessing the usb-c display port out is not initialized yet. So i guess i’ll just leave it on stock chromeos.