In my 3 years dealing with laptop issues, I have on many occasions,to deal with laptop display issues and fortunately, I have solved quite a number by the trouble-shoot procedure I am about to give. There`s a possibility that your
Graphical Processing Unit (GPU) is not seated well on your motherboard.
To fix this, kindly switch your laptop off and power it on while pressing on the keypad. If this fixs it, well and good. But if it doesn`t, there are still a few things to determine.
The second possibility is a motherboard issue. Kindly connect your laptop to an external display and press a combination of fn +f3 or fn +f4/f6 depending on your
model(Kindly confirm from your user manual how to switch between displays). Ensure the connection is correct and firm. If there`s a display on the output, it implies
that the issue might be with the your laptop`s screen.
The other scenario is that the external display may not show any image as well! Quite alarming, uh! But you need not worry. We still have to go through some procedures.
For the first scenario above, that there`s no display on external monitor, you might have to try a new Graphics Card as this maybe the possible cause. This needs experience and time and therefore you may have to visit a computer repair shop.
The second scenario whereby, there`s a display on external output but no display on the laptop, may imply a laptop backlight failure. Kindly ascertain this issue by using a spotlight to check for any blurred display on the screen. If this is the case, then your backlight`s issue will have to be fixed by a technician.
Generally it is the failure of inverter that sends the voltage to the backlight. Kindly take your laptop to a nearby repair shop for fixation.
Thank you for going through this piece of information, I hope it came handy.
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