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Troubleshooting Black Screen Displays with No Error Messages During Startup or Boot

There are many reasons that a computer does not startup or boot into the Windows operating system. If your computer will not start or boot, you will see or hear symptoms to indicate the general area of the problem. If you are not sure what the problem is, see Overview of How to Troubleshoot Problems When a Computer Does Not Start Up or Boot Properly.
Startup Symptom: LEDs glow, but computer fails to startup or boot, and displays a black screen
Use this document if the LEDs glow to indicate that power is available and the sound of a fan or spinning hard drive can be heard, but no colors, images, or text are displayed on the LCD display.
Do not use this document if there are no sounds from the computer when the power is turned on. You should check for a different problem; such as a loose RAM memory chip or disconnected hard drive.
The cause of this problem may be the failure of a hardware component, or an error in the instruction being sent from the BIOS to a hardware component.
DO THIS FIRST - Perform a hard reset
If a PC suddenly fails to boot properly, you should perform a hard reset as the first procedure.
  1. Disconnect all peripheral devices and remove all USB devices and media cards. You want to test the computer not the accessories!
  2. Disconnect the AC power adapter, remove the battery, and then press and hold the power button for at least 15 seconds.
  3. Reconnect the AC power adapter (but do not connect the battery), Press the Power button, Look for glowing LEDs near caps lock and num lock keys, and Listen for sounds of a disk drive and fan turning.
Actions to take after performing hard reset
Black Screen with No Error Messages
If the display remains blank (black screen or white screen) after doing a hard reset, temporarily connect an external monitor to test the notebook's display. If an image displays on the external monitor, continue to perform the tests, install drivers, and make adjustments as described in the next section.
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To contact HP, go to www.hp.com/support, select a country or region, and then click Contact HP.

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