Windows 10: Laptop screen not displaying on external monitor

Discus and support Laptop screen not displaying on external monitor in Windows 10 Gaming to solve the problem; HiI have an external monitor I am trying to connect to laptop through HDMI. My laptop detects that there is a second monitor, but the monitor doesn't... Discussion in 'Windows 10 Gaming' started by SergioRubio2, Mar 10, 2022.

  1. Laptop screen not displaying on external monitor


    HiI have an external monitor I am trying to connect to laptop through HDMI. My laptop detects that there is a second monitor, but the monitor doesn't display anything. I've tried many different solutions: updating, roll backing, and even uninstalling my drivers. Those solutions didn't seem to work. I plugged in my HDMI cable into other things, like my Xbox, for example, and the monitor would display the Xbox's display. I have even connected it to my MacBook Air and it seemed to work completely fine. Any ideas on how I can fix this?

    :)
     
    SergioRubio2, Mar 10, 2022
    #1
  2. LemP Win User

    connection problems External Monitor for laptop

    If you're trying to use a wired external monitor is it connected to the laptop's HDMI output connector or the mini DisplayPort connector?

    If you're using a wired external monitor and don't see any output, right-click on an empty spot on the Desktop and select Screen Resolution -> Detect

    In addition, you may need to press the F7 key and select the mode in which the display will function. There are 4 modes:

    • Disconnect (or Computer only): display only on the laptop's screen
    • Duplicate: the same display on the laptop's screen and the external monitor
    • Extend: extends the output so that you can drag things from one screen to the other
    • Projector only (or Second Screen Only): displays only on the external monitor

    Or are you trying to use wireless (Wi-Di or Miracast)?
     
  3. delpi767 Win User
    No display on laptop's external monitor-Monitor recognized but blank

    After the recent Windows 10 update, my wife's laptop no longer displays on the external monitor. All was well before the update.

    I am comfortable that Windows sees the monitor because clicking on Display Settings shows two displays. If I unplug the HDMI cable, only one display is shown.

    I have confirmed that the monitor works by trying it with another laptop. I have also changed the HDMI cable between the laptop and the external monitor.

    Device manager reports that I have the latest display driver installed.

    I would appreciate any and all suggestions.
     
    delpi767, Mar 10, 2022
    #3
  4. Cbowers3 Win User

    Laptop screen not displaying on external monitor

    Laptop screen will only work once it has been connected to an external monitor, even if that monitor is switched off

    Having an issue whereby I cannot see or use the Laptop screen without first plugging it into an external monitor.


    • Upon Windows startup unconnected to any external monitor

      • DELL opening logo can be seen on Laptop screen

      • Screen goes black with backlight

      • Mouse pointer can be seen onscreen if moved to the right, as though a second monitor is connected on the left hand side.

      • Attempting to press enter and type in password in the correct order as though the screen was functional does not do anything

    • Upon connecting to an external monitor (even if switched off)

      • Laptop screen will suddenly appear, all functionality restored

    • Upon disconnecting again from external monitor

      • Laptop screen remains visible and functional

      • Lock screen /unlock screen no problem

    • Upon shutting and opening the laptop lid

      • Screen black with backlight, same results as windows startup, mouse pointer can be seen and moved as though a second screen is connected on the left

      • No functionality until reconnected, even for a second, with an external monitor.

    Troubleshooting:


    • Restarting multiple times, checking multiple display screen is not activated:


    ***Post moved by the moderator to the appropriate forum
    category.***
     
    Cbowers3, Mar 10, 2022
    #4
Thema:

Laptop screen not displaying on external monitor

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