Gefen VGA to DVI scaler plus information needed

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juji82
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Gefen VGA to DVI scaler plus information needed

Post by juji82 »

Hello guys, I am thinking of buying one of these but I don't know which revision is better. I found these two :
http://www.videogameperfection.com/wp-c ... /gefen.jpg
http://guideimg.alibaba.com/images/shop ... 550495.jpg

Can anybody enlight me about this? :mrgreen:
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Fudoh
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Re: Gefen VGA to DVI scaler plus information needed

Post by Fudoh »

The bottom one is much older and limited in it's resolutions.

You simply want one that actually says "VGA to DVI (or HDMI) Scaler Plus". These are still available in at least two different color schemes (grey and blue/black), but are otherwise identical.
juji82
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Re: Gefen VGA to DVI scaler plus information needed

Post by juji82 »

Oh ok. Thanks for clarifications!
robodude00
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Re: Gefen VGA to DVI scaler plus information needed

Post by robodude00 »

Fudoh wrote:The bottom one is much older and limited in it's resolutions.

You simply want one that actually says "VGA to DVI (or HDMI) Scaler Plus". These are still available in at least two different color schemes (grey and blue/black), but are otherwise identical.
Fudoh, do you think the VGA to DVI scaler plus is superior than the VGA to HDMI scaler Plus when it comes to Dreamcast? I remember you saying something about a glitch in the DVI variant being beneficial to image quality?
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Thomago
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Re: Gefen VGA to DVI scaler plus information needed

Post by Thomago »

Huh, this is interesting.

Do these things work for resolutions / refresh rates like 320x200@70Hz and 640x400@70Hz?
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Fudoh
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Re: Gefen VGA to DVI scaler plus information needed

Post by Fudoh »

Fudoh, do you think the VGA to DVI scaler plus is superior than the VGA to HDMI scaler Plus when it comes to Dreamcast? I remember you saying something about a glitch in the DVI variant being beneficial to image quality?
I just said I never tested the HDMI version myself, so I cannot say if it can be tricked into seeing the full DC resolution. This requires a phase/clock setting which cannot be set manually, but only by activating the auto function.
Do these things work for resolutions / refresh rates like 320x200@70Hz and 640x400@70Hz?
on the input side ? Yes, these work fine.
robodude00
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Re: Gefen VGA to DVI scaler plus information needed

Post by robodude00 »

Fudoh wrote:
Fudoh, do you think the VGA to DVI scaler plus is superior than the VGA to HDMI scaler Plus when it comes to Dreamcast? I remember you saying something about a glitch in the DVI variant being beneficial to image quality?
I just said I never tested the HDMI version myself, so I cannot say if it can be tricked into seeing the full DC resolution. This requires a phase/clock setting which cannot be set manually, but only by activating the auto function.
Do these things work for resolutions / refresh rates like 320x200@70Hz and 640x400@70Hz?
on the input side ? Yes, these work fine.

Ahhh I see, so a safe bet would be to get the DVI variant. Thanks for that.
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Thomago
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Re: Gefen VGA to DVI scaler plus information needed

Post by Thomago »

Fudoh wrote:on the input side ? Yes, these work fine.
Thank you!
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