[mythtv-users] Got smooth playback? please post your setup & configuratio

James Buckley xanium4332 at googlemail.com
Sun Aug 6 09:54:29 UTC 2006


OK, I think the trouble is my graphics card (the nvidia 6150), which is
built onto my motherboard. The only thing stopping me from switching to a
card like the nvidia 7300GS, is that the only reason I bought my motherboard
(an MSI mini-atx thing with PCI-E, and DVI out) was because it has onboard
DVI. And I can't find a 5300FX anywhere (I need a PCI Express GFX card).

I don't surpose you know what the TV setting does in mythtv-setup, I can
select multiple different types of PAL, but it doesn't seem to make any
difference.

You said your refresh rate is 60Hz, is that "exactly" 60 or close, like
60.02

thanks so far, James

On 06/08/06, Joe Votour <joevph at yahoo.com> wrote:
>
> > (sorry if this was posted twice, didn't know if it sent properly...)
> >
> > Hi, I am having great trouble getting smooth playback (live tv or
> > recorded).
> > I've tried everything (that I can think of), and still can't get TV to
> > look
> > anything like as good as Sky. The ticker tape on BBC news (I'm in the
> UK)
> > is
> > really jerky compared to any set-top-box output of the same channel.
> >
> > Could anyone who's got smooth playback (and I mean as smooth as a
> > set-top-box gives out), please post there setup and configuration.
> >
> > I'm looking for:
> > - what kind of tv link are you using (dvi, component etc...)
> > - what refresh rate you are using (ie, 50Hz, 60Hz)
> > - what settings do you use for playback (Deinterlacer, opengl sync
> etc..)
> >
> > I would like to know so that I'm sure I'm not missing something vital.
> > Also,
> > I'm mostly interested in HDTV capable setups, i.e. people who are using
> > resolutions which are capable of HDTV.
> >
> > I have a pretty powerful Rig (AMD 3500+, 1gig of RAM, 200gb hdd), and am
> > using a DVI->DVI connection to my TV (which gives out a correct modeline
> > (1360x768), but only for a 75Hz refresh). My graphics card is an
> > intergrated
> > nvidia 6150. Everything seems to work (except XvMC, don't know why, but
> > shoudn't be required with this rig), but when I watch any TV it's real
> > jerky.
> >
> > Not meaning to make this like a survey, just I've been trying since
> Easter
> > to get this thing to work (was an Easter project), and I'm beginning to
> > give
> > up.
> >
> > Thanks in advance, James Buckley
> > _______________________________________________
> > mythtv-users mailing list
> > mythtv-users at mythtv.org
> > http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
> >
>
>
> I don't mean to discourage you, but having actually worked on a set-top
> box, I'll say this up front - with MythTV (or any other Windows/Linux
> program), it will be very difficult to get set-top box quality.  Set-top
> boxes have video output chips that are optimized for MPEG-2 playback, and
> they also take into account all the little things that are necessary, such
> as perfect vertical sync timing (for page flipping without tearing).  A
> general purpose Linux system just can't get *that* good, but it can get
> pretty close.  A lot of good discussion can be found here:
>
> http://www.gossamer-threads.com/lists/engine?do=post_view_flat;post6194;page=1;sb=post_latest_reply;so=ASC;mh%;list=mythtv
>
> That said, I get pretty good quality output on my system, especially using
> HD.  I only get the odd noticable jitter when I'm watching a ticker on CNN
> or ESPN (ESPN has fast tickers, so any artifacting in the display is
> really noticable).
>
> Here's what I've got:
> - GeForce 5200FX connected to an HDTV monitor running at 720p (1280x720)
> via VGA (60Hz)
> - Using XvMC because my CPU (an Athlon64 3200+) can barely keep up
> - OpenGL Vsync enabled
> - Bob deinterlacing enabled
>
> -- Joe
>
>
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