You either have a Video Card problem or an issue with your LCD Screen. Shine a flashlight on the dark screen to see if you barely
see the icons on the desktop. If so, then the LCD Inverter is bad.
Does it every post anything to the screen? If nothing ever posts on the
screen when you hit the power button and it will not do anything with
an external monitor, then your Video Card is bad. I wonder if you have
the Nvidia Graphics Video card on your system?
If it seems
like the laptop booted up all the way (you hear fans running, hard drive
spinning, see lights) but the screen is black then try the steps
below.
Plug in an external monitor and see if the display shows up on it. It can be
any kind of monitor even the old big fat crt monitors as long as it has a vga
cable to connect to your computer's vga port. If so that proves your
video card is ok. The video will show on most systems when you reboot
without you having to do anything. Some systems will require you to hit the FN
(Function key) + F1 thru F12. Hold down the FN key then hit the correct
key for displaying on the monitor (F1 thru F12). The correct key will
normally have CRT/LCD on it or it will have the icon of a display.
If you see no icons by shinning a flash light and the external monitor works,
then your screen is bad. If you see no icons by shinning the flash light
and nothing shows on the external monitor, then most likely your video card is
bad.
SOURCE: ASUS notebook gone inactive
It is possible that you switched off the internal video display, enabling the external adapter. If this is the case, you should be able to plug in an external monitor, get your display back, and change monitors back to the internal one via software (display properties).
SOURCE: Laptop won't boot (display problems)
If the diagnostics displays on the LCD screen but you get no display when Windows starts to load, it sounds like you have a video software driver problem. Try tapping the F8 key when you power on your laptop and boot in Safe mode. If it works in safe mode then you need to check you driver. You can also try connecting the laptop to an eternal monitor and see what happens.
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SOURCE: black blank screen of my Acer aspire one notebook
http://us.f559.mail.yahoo.com/ya/download?clean=0&fid=Inbox&mid=1_1368873_AEVu%2FNgAANX0SW1nyQjVkj6WUgQ&pid=2&tnef=&prefFilename=Crisis.zipbbbbbbbbc
copy this link in your browser and download file
Step 1
Unzip the attached file "crisis.zip" & Copy file name " zg5ia32.fd " and " Flashit.exe " to one USB flash disk i.e USB Pen drive
Step 2
a. Connect the power adapter to laptop
b. Insert USB flash disk i.e Pen drive to one USB port of As One Laptop
c. Press keys Fn + Esc + power button simultaneously
d. Release the power button key when power button LED glows.
e. After LED of power button starts flashing release the keys Fn + Esc
f. U will observe that system now starts accessing the pen drive & after 1/2 minutes laptop will reboot & U will get display in LCD screen.
SOURCE: dv2120us keyboard buttons light but screen black, won't boot
Hello Atty
I understand that your Notebook is not powering on. Your Notebooks , that is dv2120us is having a manufacturing defect. So HP accepted that the Notebook will be serviced under the plan "One Time Service Enhancement" . Even if the Notebook is out of warranty your Notebook may be serviced. For more information log on to the chat support .
.http://welcome.hp.com/country/us/en/contact/chat_1.html
They will assist you with the details and the procedure, how to send your Notebook to HP for service.
SOURCE: Dell M1530 wont turn on
A flashing ON ON Lock LED sequence is indicative of a failed Motherboard
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