Chromebook displays nothing until booted into chrome os on external display

I am trying to get Fedora linux running from a micro sd card. I have enabled developer mode and installed RW_LEGACY firmware. I dont have any working internal displays to use to i am stuck with a headless setup. I have tried to boot blindly (ctrl+L, 2, enter) but nothing happens. I know im not in the recovery screen anymore because other keystrokes dont cause a warning beep. But i dont know the state the chromebook is in. Any tips would be appreciated

and the device in question here is?

Hp Chromebook 14a BLOOGLET

I don’t see how you can do this with the stock firmware