powerbook and hdtv

Discussion in 'General Mac Discussion' started by JFreak, Aug 6, 2004.

  1. macrumors 68040


    Jul 11, 2003
    Tampere, Finland
    before i dig any deeper, has anyone tried to set a 15" powerbook to the 1280x720 (720p) hdtv resolution? it's not supported via standard display drivers, so some 3rd party hack would be needed... with the standard display drivers i have to use lower resolution and let the projector scale the image :(

    the reason i ask is because i just recently purchased such a video projector that can do 720p natively, and i'd very much like to plug my powerbook into it using the projector's native resolution. the mobility radeon 9600 will most probably support it, so it's totally a software issue.

    i wonder has anyone here already done this before?
  2. macrumors 68030


    Nov 7, 2003
  3. macrumors regular

    Jul 20, 2004
    Ames, IA/Eden Prairie, MN
    I use my PB 12" with my Sony WEGA 32" widescreen HD. The WEGA has DVI, so connecting it is a breeze. It works pretty well, however the in the WEGA manual it said that the DVI was not ment for connection to a computer, rather you are supposed to use to connect a Hi-Def reciever (which I normally do). I guess that the DVI is a little messed up, because the picture goes beyond the edges of the TV by about 1 inch when you set it at the HD resolution of 1900 something. With a little tweaking, you should be able to get your projector to work.

    BTW even though the edges are cut off, it looks marvelous for movies and such.
  4. macrumors G4

    Jul 17, 2002
    The PowerBook's built-in monitor is not 16:9. When you connect to an external monitor, you should be able to set that monitor to the resolution that you need. The limitation to having an external monitor with a different resolution than your primary monitor is that you cannot mirror them. Ideally, a 720p monitor displays at 1280 x 720. When connected via DVI, some HDTV monitors display exclusively at this resolution even though their native resolutions may be different. Your problem seems to be that your monitor may have rectangular pixels rather than the square pixels that you expect. You may have to futz a bit with with the available resolutions to get your projection monitor to display a complete image. However, I think that you have already decided that it is well worth it.
  5. macrumors newbie

    Aug 25, 2004


    Where can you find hdtv stuff for Mac..i want to see how it looks on my projector

    Thank you for help!

  6. macrumors regular

    Jan 27, 2004

    Crt tvs usually overscan the picture anywhere from 5-10%. This is why you are loosing an inch.

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