If the laptop appears to start but the display stays black, first separate a screen problem from a power, Windows, dock, or hardware problem.
Step-by-step checks
1. Look for signs of power
Check charging and power lights, fan noise, keyboard lights and startup sounds. No signs of power require a different power-on diagnosis.
2. Disconnect accessories
Remove docks, monitors, USB devices and memory cards, then restart normally. Leave mains power connected if the battery may be empty.
3. Reset the graphics driver
If Windows may have started, press Windows + Ctrl + Shift + B once. A beep or flicker suggests Windows received the command.
4. Try the security screen
Press Ctrl + Alt + Delete. If it appears, open Task Manager or restart from the power menu rather than forcing repeated shutdowns.
5. Test an external display safely
Connect one known-working monitor or TV and use Windows + P only if Windows is responsive. An external image narrows the fault but does not prove the laptop panel alone is defective.
When to stop
Stop after repeated shutdowns, liquid exposure, impact, burning smell, swelling, unusual heat, clicking storage sounds, or when important unsaved data may be at risk.
What to tell an expert
Share the device model, operating system, exact symptom or error, when it began, what changed beforehand, and which checks you completed. Do not send passwords, one-time codes, encryption recovery keys, or unnecessary personal files.
Official reference
This Supportia guide was prepared with current official guidance as a factual baseline. Interface names can still vary by device and version. Open the official reference.
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