I was running Myth on FC5 on a P4-about a 1 ghz processor and 512 meg ram. I was having the same issue as you are with it 'stuttering'. When I ran top, the process (myth) was about 20% cpu, and nothing more than 40%. <br>
<br>I upgraded my box to a athalon dual core 64 bit processor and a gig of ram. The real reason for the upgrade was because the myth box wasn't my open machine and my hard drive was failling. Anyways, I decided to go with Ubuntu and dump FC5.
<br><br>It was quite the adventure, but in the end, my video doesn't stutter anymore. I don't know if it was Fedora that was doing it, the hardware, or some setting. But something seemed to help it out.<br><br><br>Good Luck,
<br>Mike<br><br><br><div><span class="gmail_quote">On 9/25/06, <b class="gmail_sendername">MagicITX</b> <<a href="mailto:magicitx@gmail.com">magicitx@gmail.com</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;">
On 9/25/06, Brian Wood <<a href="mailto:beww@beww.org">beww@beww.org</a>> wrote:<br>><br>> On Sep 25, 2006, at 5:59 PM, James Pifer wrote:<br>><br>> > I've always used a MediaMVP for watching recordings on my TVs and
<br>> > therefore missed out on the advantage of the frontend. I finally<br>> > picked<br>> > up an FX5200. It's a PCI model since my machines do not have AGP or<br>> > PCIe.<br>> ><br>> > Anyway, I first installed it in my backend machine which is:
<br>> > AMD Athlon 1400+ (I believe this is around 1Ghz)<br>> > 768 MB Ram<br>> > 400+ GB Hard Disk<br>> > PVR350 & PVR250<br>> > FC5 & myth 0.20<br>> ><br>> > I immediately noticed some issues, with both the SVideo out and with
<br>> > connecting the VGA directly to my projector. Besides a brightness<br>> > issue,<br>> > playback does not play well. I get a lot of stuttering, although no<br>> > errors on the frontend while playing it in a terminal window.
<br>> ><br>> > For example, if I put CNN on where stuff constantly scrolls across the<br>> > screen, it constantly stutters. It's not smooth at all. I tried<br>> > watching<br>> > a football game over the weekend and it was unwatchable.
<br>> ><br>> > So I pulled the FX5200 and stuck it in another machine. Exact same<br>> > specs<br>> > on the machine, except 512 MB RAM, minus the PVR cards, minus<br>> > mythbackend and lirc, etc. I got the same results. Swap does not
<br>> > appear<br>> > to be being used at all if I look at 'top'.<br>> ><br>> > I'm NOT doing any HD. Are these machines not powerful enough for<br>> > this? I<br>> > have not seen the CPU go above 40%. I'm getting extremely frustrated
<br>> > now. I would really appreciate it if someone could give me some<br>> > input. I<br>> > had one person try and give me a hand with the brightness issue in a<br>> > previous post, but this performance issue makes the brightness issue
<br>> > take a backseat.<br>> ><br>> > Any help or suggestions is appreciated.<br>> ><br>><br>> Are you trying to de-interlace?, some of those routines might tax<br>> that little CPU, remember that the number shown by top is an average
<br>> and you might be peaking well over that, though 40% seems like it<br>> should be OK.<br>><br>> I also wonder about the PCI video card, that's a real potential<br>> bottleneck.<br>><br>> Are you using XvMC? You might need it but I'm not sure how well it
<br>> might work with a PCI video card.<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've run into this problem before. I never fully understood it but<br>don't believe it is a horsepower issue. As best I can tell it seemed<br>to come and go depending on the driver I used for the PVR-250. You
<br>might try upgrading the ivtv driver. If you are using xvmc you might<br>try upgrading that driver as well.<br><br>--<br><br>Tim<br><a href="http://www.magicitx.com">www.magicitx.com</a><br>_______________________________________________
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</a><br></blockquote></div><br><br clear="all"><br>-- <br>View my blog!<br><a href="http://wiz561.blogspot.com/">http://wiz561.blogspot.com/</a>