Video won't play on external "screen"

Discussion in 'Amateur Video Production' started by Peter G, Aug 9, 2006.

  1. Peter G

    Peter G Guest

    When I connect my XP laptop to video projector, all windows are fine except
    that any video, whether from file or DVD, shows black on projector while
    playing merrily on laptop. Rest of Window, menus etc are fine.Still images
    are fine. Laptop screen is XGA as is projector.
    Any ideas?
    Peter G, Aug 9, 2006
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  2. did you hit the function key to move the video?

    Richard Ragon, Aug 9, 2006
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  3. You need to change the properties of your VGA card. Use the "extend desktop
    to this monitor" option.
    Digital Video Solutions, Aug 10, 2006
  4. Peter G

    Peter G Guest

    yes! - can play on both projector alone or on laptopscreen and projector -
    but not video within player window!
    Peter G, Aug 10, 2006
  5. Peter G

    Peter G Guest

    Thanks - the image on projector is fine - except for windows containing
    video. I extend the via function key to projector (vga connected to laptop)
    nad all is well until I play a video!
    Any ideas?
    Peter G, Aug 10, 2006
  6. You are not understanding what is being told to you. The projector has
    absolutely nothing to do with the problem. The output of the laptop is a
    part of your VGA card. Inside the VGA properties is a setting to extend the
    laptop desktop to that output. The output is a second monitor listed on the
    VGA card.

    The problem you are experiencing is due to the fact that video does not
    playback on the desktop proper, but is "overlayed" onto the desktop. The
    video playback is actually using an area of the VGA memory which is not
    usually used by the desktop. You must have the projector hooked into the
    laptop improperly, or your particular laptop does not support the secondary
    output necessary for the video playback through the projector.

    If your VGA card does not have a second output there is ABSOLUTELY NOTHING
    anyone here can tell you to make the video appear through the projector.
    Overlay is overlay and that's that. The video will ALWAYS show as a black
    area without the use of a second head output.

    Digital Video Solutions, Aug 10, 2006
  7. Peter G

    David Guest

    I have had luck showing video on an external projector if I select a video
    mode that only outputs to the external connector. The laptop display is
    blank in this mode.

    David, Aug 10, 2006
  8. Peter G

    Bucky Guest

    Yes, most likely your video card is only capable of displaying video on
    one output. You need to go to Display Properties and set the projector
    as the primary display. Then the video will appear on the projector
    (but you'll get a black window on your laptop).
    Bucky, Aug 10, 2006
  9. I think you miss understood. The video that you see is overlayed onto
    the screen. The overlay part only happens on the main screen, unless
    you switch the overlay to a second monitor.

    If you look on your function keys (I think it's either F5 or F6 I cant
    remember and I'm typing on a Mac right now), you'll see a key in which
    you'll have to hold the function plus this key down while both laptop
    and projector are connected, and it "toggles" between the overlays.

    Richard Ragon, Aug 10, 2006
  10. Peter G

    Peter G Guest

    Hi Everyone,
    thanks for your replies - I found the simple answer 'tho would be nice to
    know why?

    If I disable Hardware acceleration (none) then everything works fine.
    I was trying to explain that indeed I was getting a "signal" on my projector
    with no hassle, but foolishly called it "video". What I wasn't getting was a
    "picture" when I played a .avi or DVD via any media player!

    Will someone will tell me what I should call the "signal" that's showing on
    the second "screen" - the semantics obviously caused some confusion! The
    video was not showing video!!!

    Peter G, Aug 11, 2006
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