MiST VGA upscaling experiments


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Retro freak
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Re: MiST VGA upscaling experiments

Postby SuperBabyHix » Mon Feb 27, 2017 5:08 pm

Sorgelig wrote:SuperBabyHix,
It's true that many (if not all) cores output slightly out of TV standard freqs. Real PAL resolution is 312.5lines per field. I don't remember any core providing exactly 312.5lines(may be only Minimig - but i didn't check its code as it's too complicated). So if core provides only 312lines or even 320lines - the vertical frequency is already doesn't match to standard PAL. So, you will have stutter issue if you will output to PAL. I suggest to set scaler output to 60Hz(NTSC). Stutter will be less noticeable.

I will give that a shot. Thanks for the info.

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Atari freak
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Re: MiST VGA upscaling experiments

Postby mambrino » Wed Mar 08, 2017 5:14 pm

Sorgelig wrote:LKV353 accepts scandoubled RGBHV (48Hz/50Hz) video through VGA input. Although sometimes it's not well centered.

But can you see the whole picture? I have the GBS8200 scandoubler and (at least in my TV) the image is shifted down aprox. 20-30px (plus border) and GBS8200 has no position adjustment for VGA input.

Thanks ;)

Atari Super Hero
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Re: MiST VGA upscaling experiments

Postby Sorgelig » Wed Mar 08, 2017 10:28 pm

Yes, i can see the whole pic. But i didn't test all cores. Only those on my repository.

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