I have a E-machine desktop unit that boots up and after about 20 secconds the flat panel display goes blank. If I turn the monitor off and then on again it comes on and dispalys what would normally be viewed but then it shuts down again after about 20 seconds. It is a Model D2685 with a 19" Flat Panel display.
It was working fine and I shut the system down to install a new printer and when I turned it back on to install the print driver this started to happen.
Power management is a tricky business for a lot of users. I would recommend setting a screensaver up if you already have not and turning that part of Power Management off.
Right click on the desktop, select Properties, click the Screen Saver tab, set up your screensave. Then on that same tab, click the power button at the bottom, changet the turn off monitor setting to 'Never" click apply. Hopefully by never engaging the poower management, this will eliminate the error.
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System setup Disks do not have any relation to your Monitor unless it is an All-In-One PC or a Laptop.
If you can see display when the unit is booting, but not when Windows should be displaying the Desktop, then your Display Size has been set outside of the size limits or refresh rate of the monitor.
An IT Technician could help you boot the PC in Safe Mode to remove the Monitor and let it re-install. This should forward the instructions to Windows to re-detect the monitor and the display limits it has.
If you have no display at any period, try another monitor.
try booting into safe mode on your case, and try chagning the settings of your video card check the Refresh rate of your video card settigns, if you have win7 on your machine right click on the desktop left click on personalize
then left click on Display,
then click on Change Display Settings,
Click on Advance settigns,
click on Monitor TAB, you will see refresh rate, standard refresh rate would normaly be 65Hertz on standard monitor on LCD's it can be 59Hertz below.
After changing the settings in safemode restart you machine check in normal mode if your system will show video properly on the screen.
Try unplugging your video card and re-seating it. Sometimes, when they are cleaned, the card gets bumped and isn't quite seated right. If that doesn't work, try doing the same thing with your memory sticks.
If tried the monitor on two other computers with the same result -- definitly your monitor is faulty. Take it to the repair shop. To make double sure, run your computer with another monitor. If everything is fine now; you can blame the monitor.
You most likely have a bad connection inside the unit. Specifically, there are a couple of "backlights" that provide the light that will pass thru the LCD panel. If you can open up the unit, with the screen facing up, there should be a small PC board on the right. Check the connections on that board. Be careful as there is high voltage there.
Keep us posted.
Did you recently change or install a program that would affect the resolution and card output? Try booting into safe mode by holding the "shift" key during boot. From there right-click on the desktop and hit 'properties'-> 'display properties' -> 'settings' , check your resolution and drop it to 800x600 and then reboot. If everything goes back in normally make sure you have the right windows drivers for your video card. You can also check the driver version and settings while you're in safe mode. Sometimes the windows update drivers can act screwy and I would recommend getting them directly from your card manufacturer.