Nowadays Computer is a common machine which finds its utility in almost every sphere of life. It does not matter how new or advanced PC you have, at some point of time user experiences issues regarding the proper operation of computer. One such problem is PC showing black screen. The following article will cover the steps that you should take to get out of this situation.
If your PC boots up and comes up with a login screen for the operating system like Windows or MacOS but after selecting the user profile or on entering the password the screen goes black or blank then there may be a problem with operating system. It might happen that a system file is corrupted therby preventing the operating system to load properly and results in black or blank screen.
Restart the computer if it is a temporary issue and resolves with a reboot. If the problem remains as it is then you need to repair and restore the operating system through a recovery console which you can get with the operating system installation disc.
Check Brightness Level and Power Setting
If you find that the picture is partially visible then the reason behind black screen is that you have set the brightness low or power setting are adjusted to decrease the brightness. Ensure that your PC is not in a power saving settings by plugging the laptop on to the wall. Increase the brightness of your laptop to make sure that the it is not the reason behind such issue.
Use External Display
Make sure that the issue is not with laptop graphic card. You can check it by connecting a monitor or other display to the laptop. If the external display is working properly then the issue is your laptop display.
In case the external monitor is not working then the issue might be the internal graphic card or cable. You need to replace the graphic card or motherboard.
If the above steps does not work then the reason for black or blank screen may be the hardware issue.
Below is the list of hardware issue related to black screen
1. Loose or disconnected cable
2. Non functioning LCD power inverter
3. Poor CCFL or backlight
4. Poor LCD
Get your computer repaired from the nearest online computer repair shop for all of above hardware issues. For more information you can visit at LivePCExpert.
Laptop processor overheating might the other reason for shut down of your system automatically. Overheating might due to the presence of dust or dire build up on the fan. You can use canned air to blow the dust and dirt so that the laptop can expel heat easily.