Hooking up my TV to my computers s-video out. (Please help)

Discussion in 'Amateur Video Production' started by michalchik, May 29, 2008.

  1. michalchik

    michalchik Guest

    Ok, I went ahead and bought a Big Projection DTV for 400 dollars
    (used), HD1080 series Mitsubishi. I am happy with the purchase and now
    am ready to have a bunch of you over to watch good movies.

    Anyway, I went ahead and hooked the TV's "input 1" into my computer
    through a 20 foot s-video cable. After about 20 minutes of fiddling
    with both the computer and TV I got the TV to display a clone image of
    my desktop. My computer is a Dell 8200, 1 gig ram, 2 ghz pentium
    processor, nvidea g-force mx-400 and I have the latest drivers.

    Works fine except when I play a video on my computer. Then the area of
    my desktop that shows the movie is black on the TV, though the movie
    is
    playing fine on my computer monitor. I have tried multiple video
    programs. High framerate videogames showup on the TV with no problem.

    I have gone through the troubleshooter and found nothing on this.

    Can anyone give me some clues here? Any information you guys need? I
    am
    very frustrated.
     
    michalchik, May 29, 2008
    #1
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  2. michalchik

    Paul Guest

    There are two ways to render a movie with a movie player application.
    In the preferences for the movie player, you may find an "overlay plane"
    option. There is only one overlay plane, and there are two output
    connectors on the video card. The movie will only play on one connector.

    An alternative render option, is "VMR9". That can work on two screens
    at once. So give that option a try.

    And like anything, YMMV.

    http://www.theatertek.com/Forums/showthread.php?t=6848

    Paul
     
    Paul, May 29, 2008
    #2
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  3. michalchik

    michalchik Guest

    what is "vmr9" and "ymmv", for tha matter I am a little fuzzy on what
    an "alternative render option" is.
     
    michalchik, May 30, 2008
    #3
  4. Google says....
    http://msdn.microsoft.com/en-us/library/ms787918(VS.85).aspx
    Google says....
    http://www.urbandictionary.com/define.php?term=YMMV

    Google is your friend. It will help you avoid asking silly
    questions in public.
    Google isn't perfect. If offered some links about butchering
    cattle, etc. :) Perhaps Paul will clarify.

    OTOH, did you read Paul's suggested URL?
     
    Richard Crowley, May 30, 2008
    #4
  5. michalchik

    Paul Guest

    1) Open the preferences for the movie player.
    2) There may be a rendering option in there. The options would be
    "Overlay plane" or VMR9. In Windows Media Player, it might be
    Tools/Options/Performance/Advanced.

    YMMV is "your mileage may vary", which translated means your results
    may be better or worse than the link I posted.

    I'm not sure I can find a nice English description of the
    difference between overlay and VMR. Overlay is a hardware
    feature, but I've never been able to find a reference that
    explained why there is only one overlay possible. Even though
    video cards now are dual head, and effectively two channels
    from head to tail, implying they could do two independent
    things, without one channel needing to bother the other
    channel. They even show in device manager, as two objects.
    It just doesn't make sense to me, that they'd share a resource
    between those two channels.

    I think one possible feature of overlay planes, is perhaps
    hardware can DMA into it directly, for stuff like TV tuner
    cards and the like. So it may have applications where software
    is not involved.

    VMR is another means to get to the screen, but seems to
    involve more references to DirectShow/DirectDraw/DirectX
    than the overlay thing. It is more of a software path,
    and makes more sense when a movie is being decompressed
    in software, and rendered on the screen.

    And as an end user, you can certainly test the feature, and
    see whether the results are good enough to use or not. If
    there is an uncorrectable color cast to the results, you may
    end up going back to what you were doing.

    You can see another example here.

    http://thedesignspace.net/MT2archives/2006_10.php

    Post back how it works out.

    Paul
     
    Paul, May 30, 2008
    #5
  6. michalchik

    bucky3 Guest

    Try changing the control panel > display settings to make the TV the
    primary display. Some graphics cards can only render 1 video output
    (on the primary display). Or you can try not using clone mode, just
    output to TV. Or use Extended Desktop mode.
     
    bucky3, May 30, 2008
    #6
  7. Propriety is also your friend. It will help you avoid being rude.

    --

    Regards,
    Robert L Bass

    ==============================>
    Bass Home Electronics
    4883 Fallcrest Circle
    Sarasota · Florida · 34233
    http://www.bassburglaralarms.com
    Sales & Tech Support 941-925-8650
    Customer Service 941-870-2310
    Fax 941-870-3252
    ==============================>
     
    Robert L Bass, May 30, 2008
    #7
  8. michalchik

    Bill Kearney Guest

    Paul's on the right track here. The video card is handling the movie
    playback using it's own onboard chips. That hardware acceleration means it
    may or may not be able to put the video out onto both outputs at once. You
    may want to check how the Display control panel is configured for the card.
    There's usually a slider control for 'hardware acceleration'. Changing that
    may affect whether the video plays out both at once. Bearing in mind, of
    course, that this will likely also affect gaming program speeds.

    You don't mention which movie player program you're using. Some have the
    option of controlling which form of output they attempt to use. DirecX,
    hardware, etc. One versatile player I like to use is VLC (video lan
    client).

    And as always, STFW for answers. As in, Search The eFf'ing Web. It
    likewise works great for abbreviations.
     
    Bill Kearney, Jun 3, 2008
    #8
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