[mythtv-users] specific nvidia AGP card that can do HD playback?

[Tim Scholl]

On Wed, May 14, 2008 at 8:21 PM, David Schlenk <mythtv at schdav.org> wrote:

> On Wed, May 14, 2008 at 6:22 PM, Misty P <mistyp at thekorn.net> wrote:
> > David Schlenk wrote:
> >> I have a KWorld ATSC 110 that works great except one of my frontends
> >> has an nvidia 6200 that apparently doesn't have the chops to do HD
> >> playback via XvMC. I've tried multiple versions of the driver and a
> >> few different distros and it just won't keep up. So I'm looking for a
> >> very specific recommnedation for a cheap nvidia AGP card that will
> >> handle ATSC content. I don't really do any x264 content. Here's my
> >> system info:
> > (deleted)
> >>
> >> nvidia card I have that doesn't work: PNY Verto GeForce 6200 Video
> >> Card (VCG62128APB) which lspci says:
> >> 01:00.0 VGA compatible controller: nVidia Corporation NV44A [GeForce
> >> 6200] (rev a1)
> >>
> >> I'd like to be able to get this machine playing HD back without having
> >> to replace the mobo/cpu/ram. I know i'm using a celeron and i should
> >> be punished but what can i say it was cheap, and so am I.
> >>
> >> Any tips would be great, including "i have that card and this is how i
> >> got it to work"
> >
> > I'm running a 6200LE (gave up on my 7300 -- pile of junk!), using XvMC
> for
> > ATSC HD every day.  I am, however, running a PCIe-16x card rather than an
> > AGP version, but both busses should have more than enough bandwidth to do
> > what you need.
> >
> > In order to get it working, I *had* to go all the way up to the latest
> > nvidia drivers ; the binary ones included with ubuntu 8.04 simply
> wouldn't
> > work for me with XvMC.  Since I'm relatively lazy, I used envy-NG to
> > download and install the drivers.  It's a piece of cake!  (Then follow
> the
> > wiki's directions, of course.)
> >
> >
> > If *that* doesn't do it, then I'd download nvclock with apt-get, and take
> a
> > look at the card's clocking.  You kind of alluded to being cheap, and
> maybe
> > the card is too underclocked (read: really cheap card) at stock.  (maybe)
> >
> > ...but I'd install the latest drivers with envy first, then see where
> you're
> > at.
> >
> >
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> >
>
> Well I might be getting somewhere. I tried a lot of things and the
> best I came up with is:
> NvAGP = 1
> disable composite (helped a lot)
> change the xvmc library in XvMCConfig to the nvidia wrapper
> and now I get playback that isn't choppy but is totally motion blurred
> like Bob isn't deinterlacing. I tried the other one but my
> understanding is that it isn't supported in xvmc. Am I crazy or didn't
> there used to be other methods (kernel comes to mind)? I ran with -v
> playback and I don't see any bob deint failure lines. I'm running the
> frontend at HD576i (I have a 4:3 CRT HDTV that looks awful @ HD1080i -
> apparently nvidia's fault according to the internets so I run it at
> this res with a virtual resolution of 1024x768) but if I up it to
> 1080i the motion blurring goes away (but its crazy ugly due to my
> crappy TV and stretched because its a 4:3 TV). I tried setting a
> modeline for a virtual resolution of 1440x1080 but it didn't work,
> although I'm not really sure if I did it right.
> Anyway I'll try with the envy drivers to see if that fixes the
> deinterlacing problem.
>
> I've been using the nvidia 5200 (fanless) for almost two years with a 3 gh
intel processor.  I can record one HD channel and watch another HD channel
one at the same time without a problem.

Tim

-- 
Tim Scholl
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