Having problems with your PC Laptops ?

I have no screen when I start my laptop - PC Laptops


Answers :

Look at your keyboard for the function key, on my laptop it is Fn in red. then locate what looks like a tiny monitor on one of the keys either the top or side. on my hp it's the f12 key press the function key and the monitor key at the same time. the monitor may be off
There are a lot of issues that cause this...I am going to try and inclde everything I can think of. I don't have all the information I need though, like operating system and do all the lights light up, does the hard drive sound like it is running, does the fan run? Do you hear any beeps when the system starts up? I will seperate all the ideas into seperate paragraphs and just go through them one at a time and see if it helps you. Good luck......
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\015\012Changing Resolution Results in Blank Screen
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\015\012Have you ever fiddled with your PCs resolution settings, clicked the OK button and found that the picture disappears? Scary stuff, but Windows XP has a built-in safety feature that should reset the resolution to its previous setting after 15 seconds. But sometimes it doesn’t work and you end up with a dark screen and no obvious way back. The same thing can also happen if you swap monitors that cannot support your current resolution, but there is another safety net that will get you out of trouble. All you have to do is start Windows in Safe Mode, just press F8 repeatedly after switch on and on the menu that appears there will be the option to ‘Enable VGA Mode. This is the universal default setting of 640 x 480 pixels and it works on just about every monitor. When Windows has finished booting you can go back into Display Properties and change the resolution back to its original setting.
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\015\012Power is on, but nobody is home….
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\015\012This is a common problem I see a lot and there can be multiple problems here. First off, if you have lost the backlight on the LCD, you might not be able to see what is on the screen….LCD makers are making the panels very dark and if the light has failed it is very difficult to see what may be on the screen. Try shining a flashlight on the screen near the bottom and see if you can make out anything on it.
\015\012If not, attach the laptop to another monitor using the video output, you may have to toggle through the video outputs on the laptop by using the Fn key + one of the “F” keys….sometimes it is F4. If you see your desktop on the external monitor than your screen may have died but your video card is still good. In this case, change out the screen and inverter. There is also the case where the dispaly has been turned off. This can be done by an Fn key combination. Some computers use Fn + F6 to turn the lcd backlight on and off.
\015\012If you still can’t manage to see a display, then the other issues are a virus or malware that has changed the resolution to one the video card cannot process, in which case, the hard drive would have to be removed, attached to another computer and scanned to remove the bugs.
\015\012The video processor or video card has failed on the motherboard.
\015\012If the computer has not been cleaned and has run hot, the processor can suffer significant damage that can result in this condition.
\015\012Work on simple first, until you get to complicated. In the end, worst case scenario is the main board has to be replaced.
Repair Help & Product Troubleshooting for PC Laptops

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