Media Center PC Problems With Projector

Discussion in 'Building a new PC' started by bigtalker, Feb 5, 2010.

  1. bigtalker

    bigtalker Member

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    I've just built a new media center PC (specs below - already got plenty of criticism on the build, so please keep responses on point). The PC is connected via HDMI to an Onkyo receiver which is then connected via HDMI to a Panasonic projector which displays on a 110 inch screen.
    I also use the receiver for my PS3 and digital cable box. When I am watching cable or playing PS3, the projector image fills the entire screen. However, when I switch to the PC, the image is smaller than the screen by about 3" all around.
    The projector input is always the same (set to HDMI 1). I have tried changing the resolution on the PC but that doesn't help. Does anyone have any ideas why this may be? Thanks in advance for any help!

    • CPU: Core i7 860
    • Motherboard: ASRock P55 Extreme LGA1156 Intel P55 chipset ATX.
    • Graphics Card (ATI): HIS H575FN1GD iCooler IV Radeon HD 5750 GDDR5 1GB
    • PSU: Seasonic x650
    •CPU Cooler: noctua c12p-se14
    • HDD: WD Caviar Green 1.5TB 32MB/SATA-3G HDD
    • Case: Zalman HD501 ATX
    • Optical Drive: SAMSUNG 8X BD-ROM Model SH-B083L
     
    bigtalker, Feb 5, 2010
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  2. Xplorer4

    Xplorer4 Active member

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    My guess is simply the resolution of the videos your playing, but i could be wrong.
     
    Xplorer4, Feb 6, 2010
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  3. bigtalker

    bigtalker Member

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    It's not the resolution of the videos as far as I can tell. The screen is smaller than the projection screen even when I am on the desktop, using Word, the internet, etc...
     
    bigtalker, Feb 6, 2010
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  4. sammorris

    sammorris Senior member

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    This is HDMI underscan, it happens by default with ATI graphics as I had the same issue with my TV. Go into Catalyst Control Center and enter the display properties page. Once you get there, there is an operation for overscan/underscan. Drag the slider to overscan a little, and the image should eventually be the correct size.
     
    sammorris, Feb 11, 2010
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