For a long time the monitor wouldn't come on right away when the computer was in sleep mode, or hibernate. I'd move the mouse around and nothing would happen for 2 to 3 minutes - sometimes. Other times it was fine and would come right on. Slowly it began taking longer and longer to come on. Now it takes a very long time to come on and many times won't come on at all. I've "solved" that before by turning off the computer, waiting a minute, then turning it back on again. It used to work; now it doesn't. I don't know if it's a setting or what.

It should turn on when you move the mouse around a bit. Otherwise, it is in hibernate and you need to push the start button for 1 second or so to wake up the computer.

Hello, The reason your monitor switched to power saving mode is because the operating system on your computer told it to. A computer left on and unattended is programed to sleep/hibernate after usually a short period of time. Without going to in depth, There are stages of sleep and after time the hibernation deepens. However, moving the mouse or pressing a key should take it out of sleep. Microsoft has a support page for this issue: http://support.microsoft.com/kb/266283 Good Day

Sleep mode on a Windows 7 PC saves power without you having to turn your computer off and without losing any work. This option cuts the power to your monitor, powers down the hard drive and pauses all functions until you awaken the computer from hibernation. Whether you have a laptop, desktop or workstation, putting your computer into sleep mode will lower your electric bill and save money! Click the "Start" button in the lower left corner of your desktop. In the lower right corner of the Start menu, next to the "Shut Down" button, is a button labeled with a small, right-pointing arrow. Mouse over the arrow. The Shut Down menu appears. Point at "Sleep" and click on this option. Your Windows 7 computer goes into sleep mode. Wake your computer from sleep mode by jiggling the mouse. There may be a delay of a few seconds before your hardware powers on. All of your open programs are still open and your work is intact, just as you left it before the computer entered sleep mode. Configure your Windows 7 PC to go into sleep mode automatically when it is not used for a certain amount of time. Click "Start" and select "Control Panel." Click "System and Security." Click "Power Options." A menu opens. Click on "Choose when the computer sleeps" and select the number of minutes of inactivity. You can also set a separate time interval to put your monitor into sleep mode. If you set both to 10 minutes, then your PC and monitor will automatically go into sleep mode after 10 minutes of inactivity Your Computer in sleep mode b> First, save all of your work. Information in computer memory is not saved while your computer is on standby. From the Start menu, select Settings, then Control Panel, then Power Management. Click Standby Beside When I Push the Power Button. Push the Power button. b> Automatically Putting Your Computer on Standby b> Save all work before leaving your computer. From the Start menu, select Settings, then Control Panel. Double-click Power Management. Set the times that you want your system to go on standby, to shut off the monitor and to shut off the hard disks. Click OK. Your computer will go on standby according to the schedule you have entered. b> Putting Your Computer in Hibernation b> From the Start menu, select Settings, then Control Panel. Double-click Power Settings. Click on the Advanced tab. At the When I Push the Power Button On My Computer screen, click Hibernate. Click the Power button. Hope this helps.

Which operating system ?

Sleep mode on a Windows 7 PC saves power without you having to turn your computer off and without losing any work.

This option cuts the power to your monitor, powers down the hard drive and pauses all functions until you awaken the computer from hibernation.

Whether you have a laptop, desktop or workstation, putting your computer into sleep mode will lower your electric bill and save money!

Click the "Start" button in the lower left corner of your desktop. In the lower right corner of the Start menu, next to the "Shut Down" button, is a button labeled with a small, right-pointing arrow. Mouse over the arrow.

The Shut Down menu appears.

Point at "Sleep" and click on this option.

Your Windows 7 computer goes into sleep mode.

Wake your computer from sleep mode by jiggling the mouse.

There may be a delay of a few seconds before your hardware powers on.

All of your open programs are still open and your work is intact, just as you left it before the computer entered sleep mode.

Configure your Windows 7 PC to go into sleep mode automatically when it is not used for a certain amount of time.

Click "Start" and select "Control Panel." Click "System and Security."

Click "Power Options."

A menu opens.

Click on "Choose when the computer sleeps" and select the number of minutes of inactivity. You can also set a separate time interval to put your monitor into sleep mode.

If you set both to 10 minutes, then your PC and monitor will automatically go into sleep mode after 10 minutes of inactivity

Your Computer in sleep mode

First, save all of your work. Information in computer memory is not saved while your computer is on standby.

From the Start menu, select Settings, then Control Panel, then Power Management.

Click Standby Beside When I Push the Power Button.

Push the Power button.

Automatically Putting Your Computer on Standby

Save all work before leaving your computer.

From the Start menu, select Settings, then Control Panel.

Double-click Power Management.

Set the times that you want your system to go on standby, to shut off the monitor and to shut off the hard disks.

Click OK. Your computer will go on standby according to the schedule you have entered.

Putting Your Computer in Hibernation

From the Start menu, select Settings, then Control Panel.

Double-click Power Settings.

Click on the Advanced tab.

At the When I Push the Power Button On My Computer screen, click Hibernate.

Click the Power button.

Hope this helps.

Hello,

Welcome to FixYa, the world's largest product support community.

Generally all Windows OS has an option for sleep & hibernate.

Windows XP Users

• Sleep Mode

By letting your computer idle for a period of time, i.e. not moving the mouse/touchpad, or not pressing any keys except when playing a video, the screen or desktop monitor will go dark. You can resume the computer by moving the mouse/touchpad or by pressing any key on the keyboard.

• Hibernation or Standby mode

Click Start, click on Turn Off Computer, then click Stand By.

Windows VISTA/Windows 7 Users

To put Windows VISTA & Windows 7 in Sleep or in Hibernation, the steps basically the same. First click Start, then click the small arrow head located to the right of the Start Menu, then you click Sleep or Hibernate.


Fig. 1. Windows VISTA Start Menu. To put Windows VISTA to Sleep or Hibernate, click the small arrow head right next the Lock icon then click Sleep or Hibernate.


Fig. 2. Windows 7 Start Menu. To put Windows 7 to Sleep or Hibernate, click the small arrow head right next the word Shut Down then click Sleep or Hibernate.

You should check the "Power Options" when the computer "Sleeps" & "Hibernates". Go to the "Control Panel" if you Win 7 or below, if you have Win 10 just type "Power" on the "Search Box" on the bottom left of the screen and then click "Edit a Power Plan" and set when the Computer "Sleeps" and when it "Hibernates". Basically when you move your mouse you are waking up the Computer from "Sleeping" or "Hibernating". Goodluck.

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.

In windows click start, control panel, power options. On the first page"when the computer is plugged in" turn monitor off NEVER on the hibernate tab uncheck enable hibernation if checked, also disable sleep mode

It is with your system. You might have hibernation enabled and many advanced video cards cannot recover from a bios or control panel timed hibernate. Start by using the Power Options from the control panel. Select "Always On" for everything and select the Hibernate tab to be sure that the Hibernate check box is not selected. Make sure you APPLY the settings. If the problem goes away, you can tweak the settings to get the power savings features you want without losing your system..

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