Dreamcast VGA problems (Screen position)

Discussion in 'General Gaming' started by Dot50Cal, Aug 21, 2008.

  1. Dot50Cal

    Dot50Cal Moderator

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    I just bought a vhdc300, which converts VGA to Component. I tried using this on my Dreamcast, but the left side of the picture is cut off. I adjusted the horizontal pot, but it doesn't go far enough before losing signal. I'm missing about 29 pixels from the left side of the screen. I don't mind if its not centered, but as long as I can see everything on the screen, its fine.

    Is there any way I can correct this? Any help is appreciated.

    [​IMG]
     
  2. Martin

    Martin Resolute Member

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    argh, I had this same problem on my dreamcast.... but I can't remember what I did. It's because it's a widescreen monitor I think.

    I think I tweaked the monitor's settings through the controls... I think. Maybe....

    Can update in a week when I get back home.
     
  3. Dot50Cal

    Dot50Cal Moderator

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    Well, that wont help much. My "monitor" is a captured card and it doesnt have any settings for that.
     
  4. Calpis

    Calpis Champion of the Forum

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    Have you tried another 640x480 VGA source?
     
  5. Dot50Cal

    Dot50Cal Moderator

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    I don't have anything else available that does 640x480 :\
     
  6. DNess17

    DNess17 Member

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    your computer doesn't support 640x480?
     
  7. Dot50Cal

    Dot50Cal Moderator

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    I'm not going to put my 1920x1080 desktop in 640x480 mode, as it would screw up all my icons :p
     
  8. Barc0de

    Barc0de Mythical Member from Time Immemorial

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    I can't believe I m posting this, but Dot50Cal, just install a game such as Quake 3 and try the resolution like that!:p
     
  9. randyrandall

    randyrandall Guest

    My dreamcast did the same thing through RGB on my 14" TV all those years ago. My TV always did it with RGB signals- although on the Gamecube you could adjust the screen position, which was awesome.

    You learn to not miss those 29 pixels ;)
     
  10. Borman

    Borman Digital Games Curator

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    Except when capturing video, then you do :p Id see if its possible to replace the pots at all on the converter, but thats the only thing I can think of
     
  11. Jamtex

    Jamtex Adult Orientated Mahjong Connoisseur

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    Then save your icons and shut up moaning, if you have lots of icons on the screen then I hate to see what your desk looks like....
    http://www.midiox.com/html/desktop.htm
     
  12. PrOfUnD Darkness

    PrOfUnD Darkness Familiar Face

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    My Dreamcast does the same when connected to my lcd tv (using a vga box). Weird is that the tv has a option for adjusting the horizontal setting, but it's disabled :(

    [​IMG]
     
  13. Calpis

    Calpis Champion of the Forum

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    DC's implementation must deviate from VGA a little too much; displays will take it upon themselves to center common video modes so if it takes Dreamcast for VGA (by counting sync pulses and their polarity) which it will, but the front/back porch periods are off, you'll have to manually adjust H-center. If that isn't an option, it would be more reasonable to get another display/capture device than hack the DC.
     
  14. Barc0de

    Barc0de Mythical Member from Time Immemorial

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    your technical posts are a turn-on :love: :lol:
     
  15. Dot50Cal

    Dot50Cal Moderator

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    Hmm, I tried this on a PC outputting 640x480, and its the same poor position. So I assume its the fault of the converter. Thankfully, I only spent 1$ on it :p. I ordered another one, so I hope that it doesn't have the same issue.
     
  16. 1080Peter

    1080Peter everyone knows ps3 make the best games

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    woah woah woah

    only for $1?

    Give me somma that...
    XD

    Aye.. I have a Sharp Vizon 20" LCD [CLT2054] and the darn thing doesn't have a VGA input.. sucks too.. but at least it has sweet component and progressive scan (due to being LCD). Although, that does suck for anything output interlaced only...

    I wonder if it would be possible to VGA hack this bish. (not really assuming it's feasible, justsaying.)
     
    Last edited: Sep 1, 2008
  17. Dot50Cal

    Dot50Cal Moderator

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    I'd send it to you, but you'll probably be missing portions of the screen :\ So its not really ideal.
     
  18. Yakumo

    Yakumo Pillar of the Community *****

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    I'll take it :nod: I could get some other stuff running on the tft then.

    Yakumo
     
  19. 1080Peter

    1080Peter everyone knows ps3 make the best games

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    Hmm.. I wouldn't really mind one.. X)
     
  20. Dot50Cal

    Dot50Cal Moderator

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    Let me see if this new one works out, otherwise I might keep it and continue using it :p
     
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