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If you move your mouse around or press space bar on your keyboard it will come on again,It is set to Auto sleep if not been used,will not go off if there is a key stroke or if your computer is busy.When you start the first time your Computer up keep on pressing delete, until you get the bios screen look for a setting saying auto sleep you can make it never then it will stay on but also press F10 to save then say yes to save
I dont know the answer but i also got the same problem..
When i start my pc suddenly one flash will come in monitor and go. then i've to reboot my pc through switching off power and then on(Cause nothing in monitor i cant see anything for turn off or restart) then may be on 2nd or third reboot screen will come..
If you do not move the mouse or press any key on the keyboard it could be just going into video power save. Confirm it by moving the mouse or pressing a key on the keyboard. If the monitor comes back on, adjust the power settings in control panel and change the time for the "turn off display" to a more suitable setting.
This is a message the monitor displays when the video cable is disconnected or the computer has no video output. Could be the computer is simply entering power save mode. Does the screen come on when you move the mouse or press a key on the keyboard?
Hold down the function key on your keyboard (lower left hand side of your keyboard between the control key and the windows key) and the F8 key simultaneously. This cycles through all monitor set up modes.
Just had the same problem... what worked for me was simple. Unplug the cable from the monitor, hit the power button a few times until Dell screen poped up with a few color bars because it knew it was no longer connected to a PC. Then plugged the cable back in and all was fixed.
To turn off the reminder, use the buttons on the front of the monitor to do the following:-
Use down arrow to highlight Setup Menu and press #2.
Use down arrow to highlight Resolution Notice and press #2.
Select Disable and Exit.
Ok sounds to me like a power supply problem.. this a a fairly common symptom. I suggest that as a temporary fix you set the monitor to NOT turn the power off to the monitor in sleep mode if possible, in your power settings for the monitor.