#laptop help

When I try to turn on my laptop, the light comes on, and I can hear it running, but the screen doesn't come on. It usually shuts off a second later, though sometimes it'll just sit like that until I turn it off again. I know this probably isn't the best place to ask for help, but idk what else to do. Is there anyone who knows what the problem might possibly be?

Extremely niche question but has anyone ever successfully repaired the trackpad on a Dell Chromebook? Mine has decided to give up the ghost and my plug in mouse is v inconvenient to use in basically all of my usual writing spots and I have a whole book to edit😩I found a YouTube tutorial for how to open the back up and replace it but is it possible to fix the one that’s already there? Could it have become dislodged or something? Helpppp