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Re: My monitor works for a little while, then goes black.
Your power-inverter board needs an overhaul.
Probably in need of the standard capacitor replacement.
a bulb in the screen is bad (a bad bulb will usually show symptoms)
It will flicker, or will look pinkishish for a bit or dark in the middle top or bottom of the screen.
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I think you have the display shut off. the button on the bottom left will shut screen off. It will come on for a few seconds if you touch the screen, but will shut off again. just push the display button again and it should stay on.
Check the cables, make sure it is secure on both ends. Also see if you pull up the Monitors on screen menu.
As long as the light is green, that means there is a signal. it could be a bad monitor. Shut off all the lights in the room, then grab a Flashlight and hold it against the LCD screen while it
boots into windows. Can you see the desktop now, but very dimm? If you
can see the desktop, then connect Your PC to another monitor (if u have one or a friends, perhaps) and
boot it up, can you see the desktop on the other monitor fine?, then we just ruled out a Bad video card and narrowed it down to either a Bad Inverter in the Screen or LCD back light issue.
probally not worth fixing, because replacement LCD's arent cheap. nowadays at the right sale you can buy a Brand new LCD monitor for as little as $199
Hello, It may be the power is set wrong. Click start, control panel, power options. From here you can set the amount of time you want the monitor or hard drive/s to remain on until the shut down or go into hibernation. Hope this helps.
Sorry to have to tell you this, but this is common in LCD monitors. The reason that it is going black when it boots is for one of two reasons. You either have a bad power supply that powers your LCD or your LCD's backlight is blown. These can be repaired or you can purchase a new one. But if it goes black 9 times out of 10 is because the backlight is bad. These can be repaired!
Unfortunately, you two have two unrelated problems. CB, the monitor isn't asking you for the password, that's the computer itself going into hibernation, which shuts down the video output, hard drive, etc. You need to go into the power-save settings and either disable hibernate, or change the settings to your liking.
The other question about the screen staying on for 5 seconds... thats an inverter board problem.
try booting the computer in safemode you can do this by pressing f8 continuously when the computer is booting until a menu comes up select safemode. If this is unsuccessful then the monitor has a physical issue.