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My monitor of my notebook keeps gping black after a couple of seconds. It seems like the computer is working OK. It is just the monitor. I am on another machine now.
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connect an external monitor to your laptop and check if you get display on the external monitor. if there is display than the issue is with the laptop monitor and you should replace the monitor screen, if the problem still remains the same when you connect the external monitor than it could be a software related issue. check and see if you get any display in BIOS mode. if you do then it could mean the OS is corrupted and you should reinstall the OS
If you are sure your graphics card is working ok and the VGA cable is firmly plugged into the monitor and card and the power cable is firmly in the monitor, Id suspect the power capacitors in the monitor are blowing or have blown
Put a large font single word onto the screen in a high contrast such as white on black. Get the monitor near a window if possible, and the next time the monitor seems to go off, see if you can still feintly see the image using natural light.
The backlight can be replaced, but it is somtimes so expensive, it's easier to buy a new monitor.
I would suspect an electrical component is failing. Try your monitor on another computer and see if it does the same thing. If it does, the monitor is failing. Also/Or try another monitor on your computer. If the new monitor does the same as the old monitor, then maybe the video card in your computer is failing. Try a new video card. Keep trying different component combinations until you decide what has to be failing.
Same problem - unplug both computer and monitor - hold power button for monitor for 15-30 seconds...then power it back on and then power on the computer. Seems from other sites there is a power issue with the monitor - this worked for me.
Video (picture) must be constantly entering a monitor for a monitor to continue to display a picture after it self tests (goes on for a second or, two) Your monitor is fine; check it using another known good computer.
Try this: Unplug your computer from electricity, remove battery, then, press and hold the power button for about 30 to 60 seconds, leave battery out connect to power then, try to restart
Let me know if it works.
HP's are known for bad capacitors in the power supply.
Replacing them is simple if you know how..not so simple if you don't.
Try your local TV repair centre. It should not cost alot to have the capacitors replaced.
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