Monitor goes to sleep and won't wake up

You should be able to just press the main system unit power button to wake up your 'sleeping' computer which will then resume your Windows desktop and bring you back to the Login panel if you have a password set for your account.

If your trying to wake your computer/monitor up try pressing a button on your keyboard or move your mouse. This should wake up both your monitor and computer.

dont know how old monitor is but it may be time for an upgrade OR the pc/laptop/desktop? may need some setting changes for your wake time, sleep time, intervals, etc.? Sometimes if laptop,, you have to tap the power button to wake up after extended sleep times.

Does it do the same when you use this monitor with other PC, new VGA cable, just need to narrow down the problem first before start taking the monitor apart.
See pictures of what usually goes bad (mostly failed capacitors) with monitors:
http://s807.photobucket.com/home/budm/allalbums
Post back what you find so we can guide you further

slapping it around usually works. "just a joke!"

tapping a few keys on your keyboard and moving the mouse will usually wake the monitor from sleep mode.

the monitor is in sleep mode ... have you tried hitting the keyboard Space bar?

if you disconnect the video cable from the pc does it display ( video disconnected) ? if it does it then is probably the sleep issue

there could be various things wrong with the computer which can only be solved by looking at the computer

i will give you a way to stop it from sleeping

1. right click on your desktop
2. click on properties, this brings a dialog box
3. select the screen saver tab in the dialog box
4. click on "power" button, this will bring another dialog box
5. select the "always on scheme" from the drop down menu or select "never" in all of the settings
6. click on ok

there you go now the monitor will never sleep again

Perhaps your computer is hibernating instead of going into standby which takes a little longer to wake up from. While you are playing plugs and cables it give it enough time to come out of hibernation.

When the computer is in this mode the USB ports turn off which disables keyboard and mouse so the only way to wake up the computer is to press the power button on the computer itself.

One tell tale sign a computer is in hibernation is that the power light on the computer will slowly blink.

I hope this helps.

In windows click Start, Control panel, Power Options. On the first page "When computer is plugged in: Turn off monitor: Never. On the Hibernate tab the box for Enable Hiberation should be unchecked.

Please rate this fixya.

Hit the keyboard keys. It is better to just turn sleep and hibernate off and just use a screen saver or tun it off.