Similarly, try holding the function key and pressing any button that looks like a computer display along the top of your keyboard-the screen may have been disabled, or gotten confused after being disconnected from an external monitor.įinally, you might even try unplugging the monitor entirely. Many laptops let you dim the screen down to nothing, so raise the brightness and you might find your computer was running properly this whole time-it was just dimmed. (Most should auto-detect the correct input, but it never hurts to double-check.)Īlso make sure your brightness is turned up. Press the menu button on your display to make sure it’s on the correct input, as well. If your computer is on, try rebooting it, and see if the problem persists. Both should have lights on the front that brighten up when receiving power, and it’s completely possible you bumped the monitor’s power button at some point without realizing it.
This may sound obvious, but make sure your computer and monitor are actually powered on.
