[mythtv-users] Re: TV-Out: AITech Scan Converter vs CX2587x

Fred byq1iis02 at sneakemail.com
Fri Sep 26 01:26:19 EDT 2003


On Wed, 2003-09-24 at 00:06, John Morris wrote:
> On Tue, 23 Sep 2003, Fred wrote:
> 
> > I can't figure out how to get an interlaced mode out of my nVidia card
> > so I can't speak to how well the Ultimate XP Pro handles that.
> 
> Don't have that exact unit, but scan converters in general frame buffer 
> the input and then output their signal from that buffer.  If it accepts an 
> interlaced signal at all from the VGA end it will probably wait until both 
> fields show up and pass the whole frame to the output.  That is why I'm 
> dumping my scan converter and have an Audio Authority VGA -> Component 
> converter on the way.  The darned things are just too smart.  For most PC 
> to TV work modern scan converters are great, accepting a wide variety 
> of vodeo modes and making a good effort to get a usable picture onto a 
> TV. but not for video.

Yeah, I was concerned about that so I emailed the manufacturer first and
they assured me it won't fubar the interlaced frames as they pass
through.  Of course, I don't believe a claim like that until I see it
for myself or one of you guys confirms it. :)  I took a look at the
Audio Authority first but it appears to be HDTV only so that won't work
for me.

So since you care about this issue enough to dump your scan converter,
does that mean you've got working interlaced output from Linux?  How?

Fred




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