How to Get Your Computer Screen Out of Power Save Mode

AvatarByEric Dawson Computers & Software

To get your computer screen out of power save mode, move the mouse or press a key on the keyboard, then press the power button if the screen stays dark. These quick actions wake most Windows PCs within a few seconds. If the screen keeps dropping back into power save mode, the fix is usually in the power settings, the keyboard or mouse wake permissions, or a loose display cable. This guide covers both the instant wake methods and the permanent settings changes that stop the problem from returning.

How to Wake Your Computer Screen from Power Save Mode Immediately

Move the mouse or tap any key on the keyboard first, since most computers wake up within a second or two once they detect input. Wiggle the mouse a few inches rather than just clicking, because a single click sometimes gets ignored while the screen is still dark. Press the power button briefly if nothing happens after several tries, since a short press wakes a sleeping PC without shutting it down. On Windows, the shortcut Ctrl+Shift+Win+B restarts the graphics driver and can force a stuck monitor to redraw the screen. A hard reboot is the last resort: hold the power button for at least 15 seconds until the computer shuts off completely, then start it again.

A monitor usually wakes on its own once it senses a video signal from the computer, so a blank screen with no response often means the computer itself is still asleep rather than the display. Check the power light or fan noise on the computer case to see whether the system is running before troubleshooting the monitor separately. If the machine has been idle for a long stretch, it may have shifted from sleep into hibernation, which needs a full power button press rather than a key tap to restore the desktop.

How to Stop Your Screen from Entering Power Save Mode

Adjust the Windows power and sleep settings, either through the Settings app or the older Control Panel, to stop the screen from dropping into power save mode too soon. Both paths change the same underlying timers, so pick whichever interface is faster to reach.

Adjust Sleep Settings in the Windows Settings App

Open Settings and go to System, then Battery, then Power and Sleep to control how long the screen stays awake before it powers down. The screen and sleep timers can be set separately for battery power and for a plugged-in desktop or laptop.

  1. Open Settings. Press Win+I, or right-click the battery icon in the taskbar and choose power options.
  2. Go to Power and Sleep. Select System, then Battery, then Power and Sleep from the menu.
  3. Set the screen timeout. Change the screen dropdown to Never, or to a longer duration such as 30 minutes.
  4. Set the sleep timeout. Change the sleep dropdown the same way so the computer itself stays available.

Adjust Power Options in Control Panel

Control Panel offers the same sleep and display timers with a couple of extra options, including separate settings for a wired desktop.

  1. Open Control Panel. Type “control panel” into the Windows search box and open it.
  2. Go to Power Options. Select Power Options, then click Change Plan Settings next to the active plan.
  3. Set both dropdowns. Change “Turn off the display” and “Put the computer to sleep” to Never or to a longer time.
  4. Save changes. Click Save Changes to apply the new timers immediately.

My preference would be to lengthen the display and sleep timers before setting either one to Never. A 30-minute screen timeout is a sensible starting point because it reduces interruptions without keeping the display on through every idle period. I would keep the screen timeout and sleep timeout separate, since a dark display is less disruptive than a computer that is unavailable when I return. If the problem happens repeatedly despite longer timers, I would then check wake permissions and the display cable rather than disabling sleep permanently.

How to Enable Keyboard and Mouse Wake Permissions

Turn on the wake permission for the keyboard and mouse in Device Manager, since Windows sometimes ships with that permission switched off for one or both devices.

Turn on Device Wake Permissions in Device Manager

Device Manager controls whether a keyboard or mouse is allowed to bring the computer out of sleep, and the setting sits inside each device’s own properties.

  1. Open the keyboard properties. Search “keyboard” in the Control Panel search box, open the Keyboard entry, select the Hardware tab, choose the listed keyboard, then click Properties.
  2. Allow wake for the keyboard. Open the Power Management tab and check “Allow this device to wake the computer.”
  3. Repeat for the mouse. Search “mouse,” or open Devices and Printers, select the mouse hardware, click Properties, then open Power Management.
  4. Allow wake for the mouse. Check the same wake box and click OK.

Wireless devices need a receiver plugged into a USB port for this permission to work reliably. Some laptops block Bluetooth keyboards and mice from waking the system to save battery power, so a wired or USB-receiver mouse and keyboard is the more dependable choice for anyone who runs into that limit.

Check BIOS or UEFI Wake Settings

Look in the BIOS or UEFI setup screen when the Power Management tab does not appear in Device Manager at all, since that usually means the wake permission is blocked at a lower level than Windows.

Restart the computer and enter setup using the manufacturer’s key, commonly Delete, F2 or F10, then look for a power management section with options such as Wake on USB or Power On by Keyboard/Mouse. Turn those options on, save the changes, and exit. A missing Power Management tab in Device Manager can also point to a missing or outdated driver for that specific device.

Why Does a Monitor Keep Going into Power Save Mode

A monitor keeps returning to power save mode when its cable, its graphics driver, or its power circuitry cannot maintain a stable signal, separate from the computer’s own sleep timer. Three causes show up most often: loose or damaged cables, outdated graphics drivers, and a failing CMOS battery on the motherboard.

Check the Monitor Cable and Connections

Reseat the cable at both ends first, since a connector that has worked loose is the single most common cause of a monitor that will not wake. Inspect the cable for bends, pinches, or exposed wiring, then swap in a spare cable if one is available.

Test with a different display cable or a different monitor to narrow down whether the fault is the screen, the cable, or the computer. Plug your monitor into another computer as well if possible; a monitor that stays dark on two separate systems points to the monitor itself rather than to Windows.

Turn off Auto Source in the monitor’s on-screen menu and set the input manually to the port actually in use, such as HDMI or DisplayPort, since some monitors search the wrong port after waking and appear stuck as a result.

Update or Reinstall the Graphics Driver

Update the graphics driver first through Windows Update or the manufacturer’s own tool, since a corrupted or outdated driver is a frequent cause of monitors that freeze in power save mode after a Windows update.

Use Display Driver Uninstaller to remove the current driver completely if a simple update does not help, then download and install the latest driver directly from NVIDIA, AMD, or Intel. A clean reinstall clears out leftover files that a normal update sometimes leaves behind.

Replace a Dead CMOS Battery

Replace the CR2032 battery on the motherboard when the computer shows other signs of a dying CMOS battery, such as a wrong system clock or repeated boot errors alongside the power save problem. The battery costs only a few dollars and sits in a coin-cell holder that most desktop cases make easy to reach.

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Duracell 2032 Lithium Battery, 4 Count, AirTag & Key Fob, CR2032 3V Cell

This Duracell CR2032 lithium battery pack provides replacement coin cells for desktop motherboard CMOS batteries. It fits the advice because installing a fresh CR2032 can help address incorrect system time and recurring startup problems that may accompany power save mode issues.

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How to Fix a Monitor That Still Will Not Wake Up

Work through integrated versus discrete graphics, USB power settings, and a Safe Mode boot when cables, drivers, and power settings have not solved the problem. These steps isolate whether the fault sits in the graphics hardware, a power-saving feature, or a recent software change.

Test Integrated Graphics Against a Discrete Graphics Card

Open Device Manager, expand Display Adapters, right-click the discrete graphics card, and select Disable to see whether the monitor wakes normally on integrated graphics alone. Press Win+X and choose Device Manager to get there quickly. A monitor that wakes fine on integrated graphics but not on the discrete card points to a graphics card or driver fault rather than a Windows setting.

Reseat the RAM and the graphics card if disabling the discrete GPU does not change anything, since a card or memory module that has shifted slightly in its slot can cause exactly this symptom.

Disable USB Selective Suspend

Turn off USB selective suspend in the advanced power plan settings when a USB keyboard or mouse loses power during sleep and cannot send the signal that wakes the system. Open Control Panel, Power Options, Change Plan Settings, Change Advanced Power Settings, then expand USB settings and set USB selective suspend to Disabled for both battery and plugged-in modes.

Try Safe Mode and Last Known Good Configuration

Boot into Safe Mode and choose Last Known Good Configuration to undo a recent driver or settings change that coincides with the monitor problem starting. This option rolls the system back to the configuration that worked at the last successful startup, which is useful when the issue began right after an update.

Editing the registry to change the Console Lock Display Timeout or the Device Idle Policy can also help in persistent cases, though registry edits carry more risk and are worth trying only after the safer fixes above have failed. Back up the registry, or create a restore point, before making any changes.

Quick Fixes vs Permanent Fixes at a Glance

Some fixes wake the screen in seconds, while others take longer to apply but stop the problem for good. The table below lines up each method by category, time, and how long the fix lasts.

Method Category Time to Apply Permanence
Move the mouse or press a key Immediate Seconds Temporary
Press the power button Immediate Seconds Temporary
Adjust power settings in the Settings app Permanent A few minutes Permanent
Adjust power settings in Control Panel Permanent A few minutes Permanent
Enable device wake in Device Manager Permanent A few minutes Permanent
Update the graphics driver Permanent 10 to 30 minutes Permanent
Replace the monitor cable Permanent A few minutes Permanent
Adjust BIOS or UEFI settings Permanent 10 to 20 minutes Permanent
Replace the CMOS battery Permanent 5 to 10 minutes Permanent

When to Get Professional Help for a Stuck Monitor

Call a technician when the screen still will not wake after cables, drivers, power settings, and a CMOS battery swap have all been tried, since the remaining fault likely sits on the motherboard, the power supply, or the monitor’s internal electronics. A repair shop can test components individually with equipment most people do not have at home.

Gamers dealing with a monitor that drops out during play should also remove any GPU overclock, confirm the case has enough cooling, verify the power supply has enough headroom for the card, and turn off G-Sync or FreeSync temporarily to see whether the adaptive sync feature is the trigger. Dust buildup on the CPU and GPU coolers can cause overheating that produces the same symptom, so a case cleaning is worth doing before paying for a repair.

Frequently Asked Questions

Why Does My Screen Say No Signal Instead of Showing a Power Save Message?

A “no signal” message usually means the monitor is awake and searching for a connection, but the computer or cable is not sending one. Check that the computer itself is powered on, then confirm the cable is fully seated at both ends. Switching the monitor’s input source manually often clears a false reading once the monitor wakes.

Does Pressing Ctrl+Alt+Delete Wake a Sleeping Monitor?

Ctrl+Alt+Delete can wake a monitor because pressing a key sends the same signal as any other keypress. It will not help if the computer itself is asleep or hibernating rather than the monitor, since the keyboard needs wake permission enabled to rouse the system first. Try a mouse movement as well if the key combination does nothing.

Is It Bad to Leave a Computer in Power Save Mode All Day?

Power save mode is designed for exactly this, and leaving a monitor or computer in that state for hours causes no damage. Modern displays and PCs enter and exit these low-power states thousands of times over their lifespan without measurable wear. The bigger downside is the wait to wake back up, not the health of the hardware.

Why Does My Second Monitor Stay in Power Save Mode While the Main One Wakes?

A second monitor often stays dark because the graphics card is not sending it a signal, commonly after a driver update or a display arrangement change in Windows. Open Display Settings, click Detect, and confirm both monitors are set to extend rather than duplicate incorrectly. Reseating the cable on the second monitor and toggling Auto Source off on that screen also resolves this in many cases.

Can a Laptop Screen Get Stuck in Power Save Mode with the Lid Open?

Yes, a laptop screen can stay dark with the lid open if the display driver has crashed or the lid sensor is misreading the lid as closed. Pressing Ctrl+Shift+Win+B to restart the graphics driver often restores the picture immediately. If that fails, closing and reopening the lid, or checking the lid-switch action in power settings, usually clears a stuck sensor reading.

Most power save problems clear up with a mouse nudge or a quick settings change, and the handful that do not usually trace back to a cable, a driver, or a wake permission that got switched off somewhere along the way. Work through the steps in order, starting with the fastest ones, before assuming the hardware itself has failed.

What This Page Does Not Publish

  • I focus on Windows here, rather than Mac or Linux power settings.
  • I do not map every monitor maker’s own power save menu.
  • I leave out default timeout figures, because your Windows settings are the useful place to check them.

References

Author Profile

Eric Dawson
Eric Dawson
I'm Eric Dawson, the writer behind The Money Watch. I live in the Columbus, Ohio area and I write about the ordinary questions that turn out to be complicated: computers, shopping, food, travel, parking, small businesses, fees, rules and products. Every article starts with the official page, the maker or the agency, then the sources that check it, and I say plainly where they disagree and what I would do. More about how I work is on the About page.