Laptop Computer Turns on but Screen Is Black
My laptop computer screen is black
Updated: 11/06/2021 by Computer Hope
If your laptop screen is not displaying any image, there are several troubleshooting steps that might help you resolve the issue. Review each section below for steps that might help.
Tip
If you see a white screen or a rainbow of colors, this could mean the video card in the laptop is defective. In this case, the video card or graphics chip needs to be replaced by an authorized repair center for your brand of laptop.
Computer is not booting
Although you may not be able to see anything on the screen, listen to the laptop for sounds indicating it's booting. If you don't hear any sound, follow the steps in the link below before moving to other sections on this page.
Note
Newer computers with an SSD and no other drives can be silent even during a normal boot. Therefore this suggestion should only be followed for laptops with a traditional hard drive.
- Why does my laptop not turn on?
Laptop battery issue
A laptop battery may cause problems with a laptop booting and displaying anything on the screen. Even if you can charge it to full capacity, the battery may have a defect causing it to interfere with the laptop start up process. Try the following steps to rule out a possible battery issue.
- Disconnect the power adapter from the laptop.
- Remove the laptop battery.
- How do I remove the battery from my laptop computer?
- Press and hold the laptop power button for 10 seconds to discharge any stored power.
- Connect the power adapter to the laptop again.
- Press the power button to see if the laptop turns on and displays anything on the screen.
If the laptop starts up, but nothing is displayed on the screen, continue with the troubleshooting steps below. If the laptop does not turn on or boot up, review the following page.
- Why does my laptop not turn on?
Operating system issues
If the computer boots up, but the screen goes black or blank after you log in, there may be an issue with the operating system.
Tip
An indication of the operating system not loading properly and being at fault is if you can see the mouse cursor on the screen and nothing else.
One of the main causes for this issue is a corrupt system file preventing the operating system from loading, resulting in the black or blank screen.
Restart Windows to see if it's a temporary issue and resolves itself with a reboot. If the problem persists, erase your hard drive and reinstall Windows.
- How to restart Microsoft Windows.
- How to erase my hard drive and start over.
Brightness is set low or power setting
If the picture is partially visible, the laptop's brightness that is set low or is being turned down by a power setting. Make sure your laptop is not in a power saving mode by plugging the laptop into the wall. Next, try increasing the brightness on your laptop to verify that it is not causing your issue.
- How do I adjust my brightness or contrast on my laptop?
Try external display
Verify there is not an issue with the laptop graphics card by connecting a monitor or another type of display to the laptop. If the external display works fine, it's an issue with your laptop LCD screen or the connection from the motherboard to the LCD screen.
- How to connect an external display to my laptop.
If an external monitor also doesn't work and you read through the above link, the internal graphics card, motherboard, or cable is defective. You may need to have the graphics card or motherboard replaced. Take the laptop to a computer repair shop to see if it can be repaired.
Laptop overheating
You can also check to see if the laptop is overheating. In most cases, a laptop shuts off when it overheats, however, it may only turn off the display by cutting power to the GPU (graphic processing unit).
Tip
An issue with overheating may be due to debris build-up on the fan, heat sink or vents. You can try using canned air to blow out the dust and dirt.
- How to clean a computer and its components.
Another hardware issue
If, after following the steps above, the laptop still has a black or blank screen, there is a hardware issue. The list below displays the most common hardware failures.
- Loose or disconnected cable.
- Bad LCD power inverter.
- Bad CCFL or backlight.
- Bad LCD screen.
- Bad graphics card or onboard graphics chip.
- Bad or shorting-out motherboard.
If your laptop is under warranty, we recommend you contact the laptop manufacturer for directions on how to get it repaired.
If the laptop is not under warranty, unfortunately, for most end-users, repairing a bad LCD or motherboard can be complicated or may result in further damage if not done properly. We recommend you take the laptop to a repair shop and have them replace the defective hardware.
If you want to try replacing the LCD screen yourself, there a few companies that sell LCD screens for almost any laptop.
- Laptop screen
- ScreenTek
Is there an on and off button for a laptop screen?
No. When the laptop is turned on, the laptop screen is turned on automatically.
Laptop Computer Turns on but Screen Is Black
Source: https://www.computerhope.com/issues/ch001319.htm#:~:text=One%20of%20the%20main%20causes,hard%20drive%20and%20reinstall%20Windows.
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