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G400Max 16x9 overlays -- weird problem

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  • #1

    G400Max 16x9 overlays -- weird problem

    I've been trying to see what my G400Max can do compared to my progressive DVD player. Based on the archives here, it seems the G400 was a popular HTPC card way back when (a couple years ago).

    I have a wide variety of custom resolutions set up that work just fine w/my 16x9 HDTV, using the G400Max's primary output (DVDMax disabled). But now I've run into this really weird issue:

    At all of the non-4x3 (ie. 16x9) resolutions that enable an overlay (which means up to 1584x540p for me at least), I get these weird purple-ish pixels infecting the 50% gray picture areas, eg. I see this corruption over the entire pattern for AVIA's TVL and sharpness patterns which have 50% gray backgrounds. But with AVIA's vertical gray ramp pattern I see near sold purple-ish horizontal line (and corresponding vertical line with horizontal gray ramp). This is how I know the corruption occurs in exact 50% gray areas of the picture.

    I don't see any mention of this in the archives here, and I know I saw some posts from G400/16x9 HDTV owners in there. Has anyone ever heard of this? My inquiry to Matrox about this just ended abruptly with something about G400 not supporting 16x9 resolutions...

    Thanks,
    Steve
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  • #2
    sorry man, not a clue, but I just realized you live like 5 minutes away from me (I'm right next to the Santa Monica airport).... weird.

    -Dimitri
    "The most beautiful thing we can experience is the mysterious. It is the source of all true art and all science. He to whom this emotion is a stranger, who can no longer pause to wonder and stand rapt in awe, is as good as dead: His eyes are closed"
    --- Albert Einstein


    "Drag racing is for people that don't know how to brake and downshift at the same time."

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    • #3
      Check AVS for your answer: There's plenty of threads on G400s used for HDTV viewing there. For starts ... "G400 Video Timings for 1080i and 540p on Mits/Zenith HDTV RPTVs! [LONG]".
      <TABLE BGCOLOR=Red><TR><TD><Font-weight="+1"><font COLOR=Black>The world just changed, Sep. 11, 2001</font></Font-weight></TR></TD></TABLE>

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      • #4
        Yes, I started in AVS. But there are very few G400 users left anymore. Everyone's upgraded to current technology (NVidia and ATI) for HTPC's.

        I did find a few references to the issue in the archives here (after searching on "blue pixel*"), but no of them cite their resolutions so I can't no for sure. None of the threads ever resolve the issue.

        Is there anyone here who has successfully used an overlay w/their desktop set to a 16x9 resolution?

        Steve

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