Windows 8 and 8.1 Forums


HDMI to TV only shows desktop.

  1. #1

    HDMI to TV only shows desktop.


    When I hook my laptop up to the TV with a HDMI cable my laptop screen goes dark and the TV only shows the task bar and the desktop background. Sound works. No mouse or actual programs are displayed. I would like to mirror the TV to my desktop. Thank. My laptop is a HP Pavillion Dv7-4285dx running Windows 8 Pro 64 bit.

      My System SpecsSystem Spec

  2. #2


    Sloe Deth, Californicatia
    Posts : 3,908
    Windows 8 Pro with Media Center/Windows 7


    Open a Video file and see if it plays on the HDMI output. On your laptop, open the Displays manager and tell it to either "Mirror the display onto the TV" or move it completely over.

    The fact that you are getting a Desktop is a good sign, there should be a fN/F-key combo which will tell your laptop to move the display over to the TV. Look for the little FN key and then look for any F key which has a Display icon on it. My Gateway laptop does this automatically with Windows 7, but Windows 8 may need additional coaxing.
      My System SpecsSystem Spec

  3. #3


    With my laptop...Samsung RV511 with 7 home premium, all I have to do is plug in the HDMI cable to both devices and then on the TV change the input source from HDMI 1 which is my SAT box to HDMI 3 and it just shows up instantly. This is the same for HP laptop that I have as well.
      My System SpecsSystem Spec

  4. #4


    Sloe Deth, Californicatia
    Posts : 3,908
    Windows 8 Pro with Media Center/Windows 7


    Ok, so windows 8 should instantly move over to the better screen. It is not doing this, so do it manually in the Displays window.
      My System SpecsSystem Spec

  5. #5


    Once I hook up the cable the laptop screen goes black and my desktop shows up on the TV with the task bar but the mouse doesn't work and any program I had open doesn't show up or my desktop icons.
      My System SpecsSystem Spec

  6. #6


    Sloe Deth, Californicatia
    Posts : 3,908
    Windows 8 Pro with Media Center/Windows 7


    Try looking for the function key combination but I told you about it'll look like a little TV set up on the F keys I'm not sure which key would it would be. But the display icon for projection and whatnot it looks like a small television. On my gateway it goes through a cycle of functions so if it doesn't show you the whole desktop when plugging it in just keep on pressing that key combination and it should cycle you to the full desktop.

    Did you post the exact model number and make? I'll go ahead and look it up and see if I can download the user manual
      My System SpecsSystem Spec

  7. #7


    Use the windows key + P, that will bring up the charms window for adding second screen.
      My System SpecsSystem Spec

  8. #8


    Sloe Deth, Californicatia
    Posts : 3,908
    Windows 8 Pro with Media Center/Windows 7


    Yes, try that as well.

    The HP Pavillion Dv7-4285dx I found, refers to a DESKTOP PC.

    Does this Laptop have a Dedicated Video Adapter or is it Integrated? If so, there may be extra settings in the BIOS you need to access.

    Or maybe there is a utility to set up the HDMI output.

    I found this entry in the User's Manual

    Connecting an HDMI deviceThe computer includes an HDMI (High Definition Multimedia Interface) port. The HDMI port connects
    the computer to an optional video or audio device, such as a high-definition television, or any compatible
    digital or audio component.
    Video 35The computer supports one HDMI device connected to the HDMI port, while simultaneously supporting
    an image on the computer display or any other supported external display.
    NOTE: To transmit video signals through the HDMI port, you need an HDMI cable (purchased
    separately), available from most electronic retailers.
    To connect a video or audio device to the HDMI port:
    1. Connect one end of the HDMI cable to the HDMI port on the computer.
    2. Connect the other end of the cable to the video device, according to the device manufacturer’s
    instructions.
    3. Press the Switch Screen Image key to switch the image between the display devices connected
    to the computer.
    Configuring audio for HDMI (select models only)
    To configure HDMI audio:
    1. Connect an audio or video device, such as a high-definition TV, to the HDMI port.
    2. Configure the default audio playback device:
    a. Right-click the Speakers icon in the notification area at the far right of the taskbar.
    b. Click Playback devices.
    c. On the Playback tab, click either Digital Output or Digital Output Device (HDMI).
    d. Click Set Default.
    e. Click OK.

    To return audio to the computer speakers

      My System SpecsSystem Spec

  9. #9


    Sloe Deth, Californicatia
    Posts : 3,908
    Windows 8 Pro with Media Center/Windows 7


    So - Where is your Switch Screen Image Key? I'll look for that. It appears to be the key with an image that is shaped like a TV with two bars on either side:

    Click image for larger version
      My System SpecsSystem Spec

  10. #10


    I've tried using FN and the windows (f4) key and I've tried using the windows button with the f4 key. Still a black laptop screen and the desktop with no mouse, icons, or open programs on the tv. I've tried it on two different brands of tv's too. Dynex and Westinghouse. My android phone work perfectly with both tv's. Just plug and play.
      My System SpecsSystem Spec

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HDMI to TV only shows desktop.
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