A laptop that boots to a black screen has a talent no other machine has. It convinces its owner the data is gone within about nine seconds. The data is almost never gone. What died is usually the update that installed itself overnight, or a display driver that woke up and chose chaos.
The fix list, in order of dignity: hold the power button ten seconds and cold boot. Boot into safe mode and roll back the last update. Plug in an external monitor to rule out a dead panel. Only after those three does anyone get to say the word motherboard.
We keep a tally at the bench. Of the last twenty black screens, sixteen were the update, three were the driver, and one was a cat asleep on the function keys, which technically counts as a hardware fault.
The lesson never changes. A black screen is a symptom, not a verdict. Do not reinstall anything yet, and above all do not format the drive because a forum post from 2011 told you to.