External monitor when booting laptop using dock

Could we get a BIOS/Firmware update that external display would work when booting the machine?

I mostly use my laptop attached to a dock and it's a little annoying that monitor don't display nothing until OS has been booted (for example, I'm usually blindtyping LUKS password when I estimate it's booted far enough).

I've never had laptop before that wouldn't output the display through dock immediately when starting so this was something of a surprise to me.

Is that fixable? That'd be great if it is. It's a minor inconvenience on the whole but still recurrent one.