Windows 10: No display number

  1.    12 Feb 2018 #1

    No display number


    Hi. I have an HP notebook and wish to display screen on tv. When I plug in HDMI cable, the display appears on tv, but notebook display goes black. When I go into display settings there is no display number showing so I cannot select 1/2. It did display originally but some setting I altered made it disappear and now I don't know how to get it back. Any help please?
      My ComputerSystem Spec


  2. Posts : 179
    Windows 10 (2), Win 8.1 (1), Win 7 (1)
       13 Feb 2018 #2

    Go to "Settings" > "System" > "Display". There should be a "Multiple Displays" option. Choose "Duplicate these displays". There also is most likely a function key on the laptop (mine is on the F8 key) which shows two small screens on it, and pressing that allows you to select the laptop display, external display, or both. Cycle through that to get both displayed.

    JohnD
      My ComputerSystem Spec

  3. philc43's Avatar
    Posts : 3,590
    64bit Win 10 Pro ver 1809 Build 17763.1 and W10 Insider Build 18252
       13 Feb 2018 #3

    You can also try the Windows Key + P as a shortcut to the display options.
      My ComputersSystem Spec

  4. f14tomcat's Avatar
    Posts : 37,021
    Triple boot - Win 10 Pro, Win 10 Pro Insider (2) - (and a sprinkling of VMs)
       13 Feb 2018 #4

    bl44 said: View Post
    Hi. I have an HP notebook and wish to display screen on tv. When I plug in HDMI cable, the display appears on tv, but notebook display goes black. When I go into display settings there is no display number showing so I cannot select 1/2. It did display originally but some setting I altered made it disappear and now I don't know how to get it back. Any help please?
    @bl44

    Take a look here. Looks almost identical to your issue.

    Laptop screen goes blank when connecting HDMI cable ? ? ? [Solved] - TV - Laptop Tech Support


    I had the same problem not an IT tech but was able to do it. I right clicked on the desktop 2. go to graphic properties 3. Click advanced mode 4. Click on multiple display then select clone. After doing this both my laptop and tv were showing the same info. Previously once my HDMI cord was plugged in my laptop would turn black and he TV only was displayed. Now after taking these steps I can now see both screens.
      My ComputersSystem Spec


 

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