On Monday 14 February 2005 19:53, Brad Templeton wrote: > On Mon, Feb 14, 2005 at 07:39:54PM -0700, Blair wrote: > > I strongly suspect it is the Component out processing and the Component > > input itself that is reducing the artifacts, I get some of them back if I > > go to an SVIDEO ouput on the same card. I suppose it's possible > > (probably likely) that nVidia is doing some additional processing of this > > signal. > > Ah, so you are talking about at SD resolution. Most people are > particularly keen on component output for HD resolutions. I actually find > that the SVIDEO TV-out looks better and has fewer artifacts than playing > the video at 720p coponent (upscaled) and I presumed the tv-out had some > filters for the artifacts.
I "am" talking about an HD signal, the artifacts actually return if I output a down converted HD signal to the SVIDEO. Maybe I'm missing something in my configs? Processing a signal to COMPONENT (YprPb) should inherently improve bandwidth delivery capability to to set, just based on the specs electrical charactaristics. I suspect this is contributing to the reduction of artifacts simply by virtue of the sets ability to handle signal more quickly in this context. I could be all wet though. I say this because if I simply change the cards output to the SVIDEO prtion of the dongle, some of the artifacts I was getting return, when I swtch to the YprPb outputs, they go away. I open to other suggestions as to why I see this. I can repeat it at will. > > > couple years ago (though I hate to admit it) I burned up a an old TV > > messing with modelines so I'm hesitant to do much of that with an HDTV. > > I also have > > Just about every modern HDTV I have seen handles bad modelines gracefully, > but of course there are no guarantees! With lcd/dlp etc. TVs I am not > sure you could damage them much anyway, they are just trying to scan > convert to the native internal digital res. > > The modelines you would use for your component out would be identical from > what I know to the ones you would use for vga -> audio authority. It is > not a scan converter. > > I have stayed away from the high-end cards believing they would gain me > nothing, would just run hotter and need a fan, and of course cost mucho > dinero. Seems nuts to pay more for a video card than you do for a Tivo. > > Run my mythcommflag benchmark and tell us how it performs. If we find > that the high end cards really do a lot better, you might see folks > upgrading. I'm just outputing 1920x1440 (a native X modeline) and letting X take care of it for me. Haven't been tweeking though maybe I should? I've just been letting the X virtual windowing handle the extra for me and scaling Myth to display in the visible portion of the display. -- -Blair Preston Principle Systems Architect "The best way to predict the future, is to invent it" -Alan Kay _______________________________________________ mythtv-users mailing list [email protected] http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
