Monitors not turning on

Traci DeOchoa 0 Reputation points
2026-09-18T13:03:05.8433333+00:00

I have two monitors connected to my laptop but neither turn on automatically when I power up the laptop and they do not retain windows that were open when my laptop goes to sleep.

Windows for home | Windows 11 | Display and graphics
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  1. TaoLi 113.4K Reputation points Independent Advisor
    2026-09-18T13:36:32.17+00:00

    Hi

    Are both monitors connected directly to your laptop or through a docking station? What do you currently have to do to get them working—press their power buttons or reconnect a cable?

    For the window positions, go to Settings > System > Display > Multiple displays and turn on “Remember window locations based on monitor connection.” Then test sleep and wake again.

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  2. AI answer

    2026-09-18T13:03:20.96+00:00

    Try these steps in order:

    1. Make sure Windows is set to use the external displays.
      • Press Windows logo key + P.
      • Select Extend.
    2. Check the basic hardware path.
      • Disconnect any unnecessary accessories, docks, dongles, or adapters.
      • Reseat the monitor cables.
      • Try a different cable.
      • Test each monitor with another system if possible.
      • If the laptop has more than one video output port, try a different port.
    3. Confirm the laptop can support two external monitors.
      • Some display adapters cannot support more than one external monitor.
      • If the device has only one video output port, it normally supports only one external monitor unless a docking station or a USB-C video adapter adds another output.
      • A display splitter will only duplicate the same signal and cannot create two independent extended displays.
    4. If the setup worked before and stopped, reset the graphics driver.
      • Press Windows logo key + Ctrl + Shift + B.
      • If that does not help, restart the laptop.
    5. If the issue started after an update, roll back the display driver.
      • Open Device Manager.
      • Expand Display adapters.
      • Right-click the display adapter > Properties > Driver tab > Roll Back Driver.
    6. If rollback is unavailable, reinstall the display driver.
      • Warning: this temporarily removes the display driver until Windows reinstalls it.
      • Open Device Manager.
      • Expand Display adapters.
      • Right-click the adapter > Uninstall device.
      • Select Attempt to remove the driver for this device > Uninstall.
      • Restart if prompted.
      • Open Device Manager again.
      • Expand Display adapters.
      • Right-click the adapter > Update driver > Search automatically for updated driver software.

    For the windows not staying on the same monitors after sleep or disconnect:

    1. Turn on the monitor reconnection options.
      • Open Settings > System > Display.
      • Under Multiple displays, enable:
        • Remember window locations based on monitor connection
        • Minimize windows when a monitor is disconnected
    2. If closing the laptop lid causes the external monitors to stop working, change the lid action.
      • Press Windows + R, type powercfg.cpl, and press Enter.
      • Select Choose what closing the lid does.
      • For When I close the lid under Plugged in, select Do nothing.
      • Save changes.

    If one external monitor works but both do not come on automatically, the most likely causes are the display adapter limit, the connection path through a dock/adapter, or the display driver.

    References:

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