I've been down this road before...<br><br>I'm using an 37" LG 37LP1D. It takes <span style="font-style: italic;"><span style="font-style: italic;"></span></span> 1360x768 @ 50Hz without a hitch (infact it's taken almost every modeline I've ever given it!). But it's getting the refresh to be
<span style="font-style: italic;">exactly</span> 50Hz which I find the hardest. On xtiming, if I type 50 for the refresh rate, when it's calculated it normally says something like "Actually 50.04". If I use a refresh like
49.98, I can get it to say 50, but I think the value is still being rounded. How important is it to get a perfect 50Hz refresh.<br><br>Also, I think some of the jerkyness is caused by the rubbishy graphics card. If I run glxgears, it uses 100% CPU (basically as much as it can), and if I do some CPU intensive task (like opening
<a href="http://openoffice.org">openoffice.org</a> :P) it stutters really bad. I think that may be causing some of the erratic stutters I get (on top of the generally stuttery playback), and may be leading to the prebuffer pauses.
<br><br>I think I need a decent (i.e. normal) graphics card. :(<br><br>Thanks so far<br><br><div><span class="gmail_quote">On 06/08/06, <b class="gmail_sendername">Wim Fokkens</b> <<a href="mailto:wimfokkens@planet.nl">
wimfokkens@planet.nl</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><br><br><br>> -----Oorspronkelijk bericht-----<br>
> Van: <a href="mailto:mythtv-users-bounces@mythtv.org">mythtv-users-bounces@mythtv.org</a> [mailto:<a href="mailto:mythtv-users-">mythtv-users-</a><br>> <a href="mailto:bounces@mythtv.org">bounces@mythtv.org</a>] Namens Joe Votour
<br>> Verzonden: zondag 6 augustus 2006 18:42<br>> Aan: Discussion about mythtv<br>> Onderwerp: Re: [mythtv-users] Got smooth playback? please post your setup<br>> & configuratio<br>><br>> > OK, I think the trouble is my graphics card (the nvidia 6150), which is
<br>> > built onto my motherboard. The only thing stopping me from switching to<br>> a<br>> > card like the nvidia 7300GS, is that the only reason I bought my<br>> > motherboard<br>> > (an MSI mini-atx thing with PCI-E, and DVI out) was because it has
<br>> onboard<br>> > DVI. And I can't find a 5300FX anywhere (I need a PCI Express GFX card).<br>> ><br>> > I don't surpose you know what the TV setting does in mythtv-setup, I can<br>> > select multiple different types of PAL, but it doesn't seem to make any
<br>> > difference.<br>> ><br>> > You said your refresh rate is 60Hz, is that "exactly" 60 or close, like<br>> > 60.02<br>> ><br>> > thanks so far, James<br>> ><br>> > On 06/08/06, Joe Votour <
<a href="mailto:joevph@yahoo.com">joevph@yahoo.com</a>> wrote:<br>> >><br>> >> > (sorry if this was posted twice, didn't know if it sent properly...)<br>> >> ><br>> >> > Hi, I am having great trouble getting smooth playback (live tv or
<br>> >> > recorded).<br>> >> > I've tried everything (that I can think of), and still can't get TV<br>> to<br>> >> > look<br>> >> > anything like as good as Sky. The ticker tape on BBC news (I'm in the
<br>> >> UK)<br>> >> > is<br>> >> > really jerky compared to any set-top-box output of the same channel.<br>> >> ><br>> >> > Could anyone who's got smooth playback (and I mean as smooth as a
<br>> >> > set-top-box gives out), please post there setup and configuration.<br>> >> ><br>> >> > I'm looking for:<br>> >> > - what kind of tv link are you using (dvi, component etc...)
<br>> >> > - what refresh rate you are using (ie, 50Hz, 60Hz)<br>> >> > - what settings do you use for playback (Deinterlacer, opengl sync<br>> >> etc..)<br>> >> ><br>> >> > I would like to know so that I'm sure I'm not missing something
<br>> vital.<br>> >> > Also,<br>> >> > I'm mostly interested in HDTV capable setups, i.e. people who are<br>> >> using<br>> >> > resolutions which are capable of HDTV.<br>> >> >
<br>> >> > I have a pretty powerful Rig (AMD 3500+, 1gig of RAM, 200gb hdd), and<br>> >> am<br>> >> > using a DVI->DVI connection to my TV (which gives out a correct<br>> >> modeline
<br>> >> > (1360x768), but only for a 75Hz refresh). My graphics card is an<br>> >> > intergrated<br>> >> > nvidia 6150. Everything seems to work (except XvMC, don't know why,<br>> >> but
<br>> >> > shoudn't be required with this rig), but when I watch any TV it's<br>> real<br>> >> > jerky.<br>> >> ><br>> >> > Not meaning to make this like a survey, just I've been trying since
<br>> >> Easter<br>> >> > to get this thing to work (was an Easter project), and I'm beginning<br>> >> to<br>> >> > give<br>> >> > up.<br>> >> ><br>> >> > Thanks in advance, James Buckley
<br>> >> > _______________________________________________<br>> >> > mythtv-users mailing list<br>> >> > <a href="mailto:mythtv-users@mythtv.org">mythtv-users@mythtv.org</a><br>> >> >
<a href="http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users">http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users</a><br>> >> ><br>> >><br>> >><br>> >> I don't mean to discourage you, but having actually worked on a set-top
<br>> >> box, I'll say this up front - with MythTV (or any other Windows/Linux<br>> >> program), it will be very difficult to get set-top box quality. Set-<br>> top<br>> >> boxes have video output chips that are optimized for MPEG-2 playback,
<br>> >> and<br>> >> they also take into account all the little things that are necessary,<br>> >> such<br>> >> as perfect vertical sync timing (for page flipping without tearing). A<br>
> >> general purpose Linux system just can't get *that* good, but it can get<br>> >> pretty close. A lot of good discussion can be found here:<br>> >><br>> >> <a href="http://www.gossamer-">
http://www.gossamer-</a><br>> <a href="http://threads.com/lists/engine?do=post_view_flat;post=116194;page=1;sb=post_late">threads.com/lists/engine?do=post_view_flat;post=116194;page=1;sb=post_late</a><br>> st_reply;so=ASC;mh=25;list=mythtv
<br>> >><br>> >> That said, I get pretty good quality output on my system, especially<br>> >> using<br>> >> HD. I only get the odd noticable jitter when I'm watching a ticker on<br>> >> CNN
<br>> >> or ESPN (ESPN has fast tickers, so any artifacting in the display is<br>> >> really noticable).<br>> >><br>> >> Here's what I've got:<br>> >> - GeForce 5200FX connected to an HDTV monitor running at 720p
<br>> (1280x720)<br>> >> via VGA (60Hz)<br>> >> - Using XvMC because my CPU (an Athlon64 3200+) can barely keep up<br>> >> - OpenGL Vsync enabled<br>> >> - Bob deinterlacing enabled<br>
> >><br>> >> -- Joe<br>> >><br>> >><br>> >> ___________________________________________________________<br>> >> $0 Web Hosting with up to 200MB web space, 1000 MB Transfer
<br>> >> 10 Personalized POP and Web E-mail Accounts, and much more.<br>> >> Signup at <a href="http://www.doteasy.com">www.doteasy.com</a><br>> >><br>> >> _______________________________________________
<br>> >> mythtv-users mailing list<br>> >> <a href="mailto:mythtv-users@mythtv.org">mythtv-users@mythtv.org</a><br>> >> <a href="http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users">http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
</a><br>> >><br>> > _______________________________________________<br>> > mythtv-users mailing list<br>> > <a href="mailto:mythtv-users@mythtv.org">mythtv-users@mythtv.org</a><br>> > <a href="http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users">
http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users</a><br>> ><br>><br>> I certainly hope that the 6150 isn't the problem (and I somehow doubt that<br>> it is), because I plan to move to an Asus motherboard that hasa built-in
<br>> 6150 on it. There's an attraction to having the graphics built-in, and<br>> having VGA, DVI, S-Video, Composite and Component all available to me<br>> (although, not necessarily at the same time).<br>><br>
> Since I live in the United States, I pick "NTSC" for my TV-standard.<br>> (Technically, it would be "NTSC-M", but I suppose it's left as NTSC, since<br>> they have a "NTSC-JP" for Japan, which should be "NTSC-J".) Nonetheless,
<br>> you need to pick the standard appropriate for the area that you're living<br>> in - there are slight changes in the different PAL modes, and they are<br>> geography specific. I believe (but am not totally sure) that this setting
<br>> is used for programming an analog capture card (in the case that the tuner<br>> supports multiple variants of PAL, for instance).<br>><br>> My TV (and the manual that come with it) indicate that I am running at
<br>> exactly 60.0Hz in 720p (but it only shows one decimal place of accuracy).<br>> However, one thing to keep in mind is that this is a CRT HDTV, and I<br>> believe that it's more of a VGA monitor than it is a real TV (although it
<br>> does have standard TV connections like an RF in for an antenna/cable<br>> connection and component/S-Video inputs)<br>><br>> -- Joe<br>><br>><br>> ___________________________________________________________
<br>> $0 Web Hosting with up to 200MB web space, 1000 MB Transfer<br>> 10 Personalized POP and Web E-mail Accounts, and much more.<br>> Signup at <a href="http://www.doteasy.com">www.doteasy.com</a><br>><br>> _______________________________________________
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</a><br><br>Hi James<br><br>Before you buy any new hardware. You have to know that if you living in the<br>UK your are in pal area, so that means 50Hz video content. So if you want<br>that to look smooth your refresh rate has to be 50Hz or a multiple. (basicly
<br>50 or 100hz)<br>If you play 50Hz video content on a 60Hz refresh rate screen it will never<br>look smooth.<br>Altough it is very easy to make a modeline with 1360 x 768@50hz with for<br>example the following modeline calculator.
<br><a href="http://xtiming.sourceforge.net/cgi-bin/xtiming.pl">http://xtiming.sourceforge.net/cgi-bin/xtiming.pl</a><br>Modeline "1360x768@50" 67.86 1360 1392 1648 1680 768 784 791 807<br><br>Most LCD tv sets don't accept 50Hz at there native resolution.
<br><br>So you probably have to use a HDTV compatible modeline @50Hz.<br>For example 1280x720p50<br>Modeline "1280x720@50" 59.42 1280 1312 1536 1568 720 735 741 757<br><br>What brand and type of LCD TV are you using?
<br><br>Wim<br><br><br>_______________________________________________<br>mythtv-users mailing list<br><a href="mailto:mythtv-users@mythtv.org">mythtv-users@mythtv.org</a><br><a href="http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users">
http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users</a><br></blockquote></div><br>