[mythtv-users] MythTV / HDTV: DVI vs S-Video Interface
Sugges tions
Boyd II, Willy
wboyd at fulbright.com
Fri Oct 31 15:59:15 EST 2003
> -----Original Message-----
> From: Jeff Noxon [mailto:jeff-mythtv at planetfall.com]
> Sent: Friday, October 31, 2003 2:47 PM
> To: george at msworldnet.com; Discussion about mythtv
> Subject: Re: [mythtv-users] MythTV / HDTV: DVI vs S-Video
> Interface Suggestions
>
>
> I've been playing with it less than a week, and you're right,
> Myth is amazing.
>
> You'll get better color fidelity and resolution using DVI,
> followed by component, followed by S-video from the PVR350.
> But overall the picture will look best coming from the
> PVR350's S-Video out.
>
> The reason is that the PVR350 can output interlaced video.
> If you use component or DVI, regardless of whether it's
> progressive or interlaced on the output, it will have to be
> _deinterlaced_ by mythtv first.
But why does it have to be deinterlaced? I remember seeing a checkbox in
the setup to turn on/off deinterlacing -- does this mean turning off
deinterlacing will 'cause problems if one wants VGA->Component? (I don't
have such a setup so please forgive my ignorance... right now I'm using
svideo out from a gf4mx, with deinterlacing on)
- Willy
>And you gain some peculiar
> artifacts when that happens. MythTV's deinterlacing is
> relatively simple, and if you can bypass it you'll be better
> off. I wish I'd spent the extra $50 and got the 350 instead
> of the 250.
>
> I have the Audio Authority VGA to Component adapter, which I
> have used with my old Windows-based HTPC & HDTV. It does a
> great job (much cheaper than the one at digital connection
> too!) but until MythTV has deinterlacing capabilities on par
> with dscaler, save your money. Since dscaler is open source
> (GPL), I suspect it will happen sooner or later -- maybe you can help.
>
> Most modern HDTV's have pretty good deinterlacing built in,
> with inverse telecine, bob/weave, etc. So: use S-Video and
> take advantage of that.
>
> Also, who knows if the DVI on your TV will even work with the
> DVI output from a PC...
>
> Regards,
>
> Jeff
>
> On Fri, Oct 31, 2003 at 02:27:50PM -0600, George Heeres wrote:
> > Been following the list for a couple weeks drooling to get
> started...
> > but had to wait for the money tree to drop some new leaves...the
> > leaves have dropped...and I'm ready to buy the hardware for
> my HTPC!
> > YEAH!!! :)
> >
> > Even though I don't have any first-hand experience with MythTV,
> > what've
> > I read and seen for screenshots absolutely BLOWS my mind.
> MythTV Looks
> > to be an awesome product....my hats off to the developers and other
> > people working hard to make this happen. I hope to be able to
> > contribute back once I'm educated...
> > That said...
> >
> > My question to everyone, is what's the best way to interface with a
> > HDTV. The TV in question is a Sony KV34HS510 Widescreen
> HDTV, which
> > I'll be picking up this weekend (Saturday).
> >
> > The TV has tons of inputs, including DVI and Component
> Video (YPrPb),
> > along with the standard composite and S-Video inputs. My
> question is
> > what's the best route to take for maximum picture
> quality/resolution:
> >
> > Obviously there are the S-Video options:
> >
> > - TV-Out via NForce2 Chipset
> > - TV-Out via Some Other VGA Card (Recommendations?)
> > - TV-Out via PVR-350
> > From what I understand, this is the BEST S-Video option out
> > there using the alpha ivtv drivers.
> >
> > Then there are straight VGA output options:
> >
> > - Use VGA to Component (Y-Pb-Pr) Output
> > Something like the one listed here:
> >
> > http://www.digitalconnection.com/products/video/kdvtca3.asp
> >
> > Anyone work with something like this? Quality? Resolutions?
> > Know of a comparable or similar product that might be cheaper
> > but just as good?
> >
> > - Use DVI to DVI cable
> > I could be wrong, but my guess is this will yield the BEST
> > results possible but I've read conflicting things
> regarding this.
> > Some say yes, others say no. There's also the questions of
> > DVI-I vs DVI-D cabling, etc. Anyone have direct experience with
> > this? Pointers? References? Links? Anything?
> >
> > Or am I missing something? Any other suggestions or advice is
> > appreciated. Positives, negatives? Anything... I'm not new to
> > computers and hardware, but I have 0 to no experience with
> > interfacing with TVs.
> >
> > If this has already been addressed in a FAQ or other email hidden
> > somewhere in the archives, please send a link/reference.
> >
> > Thanks!
> > George
>
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