What ??? is this a desktop or laptop ?
Do you mean you cant see yout laptop screen ?
The display on your laptop is the interface through which
you interact with and control your computer.
If it is not working, your laptop will become virtually
impossible to use.
A laptop is a computer, and like all computers is subject to
both hardware and software problems that may affect the display.
Before taking your laptop in for repair or getting rid of
it, you should first check the display yourself to see if it needs to be
Check the laptop's battery and power cord.
If the laptop is out of power, the display will not work.
This usually happens if the power cord is unplugged and you
were unknowingly running your laptop on battery power.
Check to make sure the power cord is plugged in and that the
laptop has power.
Many laptops also turn off the display if it is being
powered by its battery after a period of nonuse. Touching any key will usually
turn the display back on if the battery is not drained.
Restart your computer. If a software program is stuck or
malfunctioning, it may cause your display to stop functioning.
Press and hold the "Power" button on your laptop
to reboot your computer.
If the problem was a malfunctioning program, the display
will turn on after the computer restarts.
Check the brightness level of the display.
If the level is too low, the screen will appear dark.
The brightness controls are usually located on two function
keys, such as "F9" and "F10." Look for sun or light icons
on the keys.
Press the key with the larger icon to increase the
Alternatively, on some laptops hold the "Fn" key
while simultaneously pressing the "Up Arrow" key to increase the
Check the display closed switch.
Many laptops have a small button that senses when the LCD
screen is closed and puts the laptop in sleep or hibernation mode.
WARNING: Before you start troubleshooting remember that you
are dealing with electricity that can KILL.
Only work inside the computer case when the power has been
switched off and disconnected. Never open the power source.
Some of the below steps
recommend removing physical parts within the computer.
While in the computer it is
highly recommend that you be aware of ESD and its potential hazards.
Check your RAM.
The RAM is located in the middle of the
There are tabs that you can push to release the
Remove it and put it back in place until the
tabs pop out.
Loose RAM can cause your computer not to start
properly where you want to see a video signal.
Remove the memory modules from their slots.
Take the opportunity to clean the
slots on the motherboards and the memory module connectors.
Use compressed air to blow dust away and clean contacts with
a soft cloth.
Do not use a metallic vacuum cleaner if it touches any
component it may create a short and cause damage to the motherboard or other
Do not use solvent that may attract
dust and never poke things like cotton buds in to slots.
rub an alcohol (Methylated Spirits) on a cloth not to hard let the alcohol do
the work on the copper gold or silver tabs and r
Allow the pins to dry.
They will air dry in a matter of minutes.
If reseating the memory did not
resolve the issue try swapping the location of the memory.
Make sure your graphics card is securely seated with no dust
built up or in the socket
if you remove your graphics check the socket to make sure
its dust free
If the switch gets clogged with dirt, it may get stuck in
the closed position.
This will result in dark display even when the lid is open.
The switch is usually located near the hinges of the lid.
Spray the switch with a can of compressed air to loosen the dirt so that it
will resume its normal operation.
Plug an external monitor into your laptop.
If the problem is not software related, the external monitor
will display the laptop's screen.
Connect the monitor by plugging the cable into the VGA, HDMI
or DVI port on the laptop.
Press and hold the "Fn" key while simultaneously
pressing the "F8" key.
The video output will be directed to the external monitor if
there is a hardware problem.