The most probable cause is a broken power connection. A bad connection between the graphics card and screen could cause symptoms as well. A problem with the card's driver is a possible, but unlikely, cause of the problem.Continue Reading
Laptop screens require a constant source of power, and any interruption will cause the screen to go black. While the problem could reside in the power supply itself, the cable that connects the power supply to the screen is the most likely culprit. Replacing the cable may fix the problem.
In most laptops, the screen is connected to the graphics card by a robust cable that is unlikely to wear down over time. However, the connection can still become damaged. If this is the reason why the screen goes black, fixing it may require purchasing a new screen. Laptop screens contain complex wiring to ensure that all parts are working correctly, and any faults in this wiring can cause the screen to turn off. Fixing this problem is impractical, and it may require purchasing a new screen and installing it.
It is possible that the graphics driver has become corrupted, but these problems do not usually result in the screen turning off completely. Reinstalling the driver is easy, so it may be worth trying before opening up the laptop.Learn more about Computers & Hardware
On most laptops, a user can adjust the brightness of the screen through system power settings or shortcut keys. A variety of power presets automatically adjust the screen brightness to conserve power or provide optimal performance, according to Windows.Full Answer >
Enable a wireless connection by pushing a hardware button on the device and then activating the computer's wireless software on Microsoft Windows laptops. After the wireless hardware is ready, select a wireless connection from the menu of choices.Full Answer >
HP laptop users can reset their computers by unplugging the power cable and any USB devices, draining power from the battery, starting Windows and running HP Support Assistant. They can also run Windows Update to find fixes for any critical errors.Full Answer >
One laptop from Sager comes with a 20-inch screen, making it one of the largest on the market as of 2014. Most laptops available in the market in 2014 have 13- to 16-inch screens. Some of the largest laptop screens available for purchase off-the-shelf come with 17.3-inch screens.Full Answer >