Why did my laptop screen suddenly go dark?

If the screen stays dark after trying to wake it up, it might be worth checking if there’s an issue with your display driver. You can try booting into safe mode and see if the screen works there. Updating or rolling back the driver could help resolve any glitches.

It sounds like your laptop might have gone into hibernation mode. Sometimes, if it’s inactive for a while, it can automatically dim or turn off the display. You could try pressing any key on the keyboard or moving the mouse to see if it wakes up. If that doesn’t work, holding the power button down for a few seconds can force it to restart.

When you say the screen is dark, can you still see a faint image or is it completely black? If it's just dark, try adjusting the brightness settings. You might have accidentally lowered it. If it’s just black and nothing responds, then a hard reset could be the way to go.