On Wed, Dec 5, 2012 at 3:25 PM, Dan Gravell <span dir="ltr"><<a href="mailto:dan.gravell@talk21.com" target="_blank">dan.gravell@talk21.com</a>></span> wrote:<br><div class="gmail_extra"><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">
<div><div style="font-size:10pt;font-family:'times new roman','new york',times,serif"><div><span>Ah, apologies, but it turns out I was running the nvidia proprietary drivers after all ("version current").</span></div>
<div style="font-style:normal;font-size:13px;background-color:transparent;font-family:'times new roman','new york',times,serif"><span><br></span></div><div style="font-style:normal;font-size:13px;background-color:transparent;font-family:'times new roman','new york',times,serif">
<span>I re-enabled standard VDPAU (it was on 'Normal' playback config before) and the results are interesting... one CPU is now always pegged at 100% CPU or thereabouts. A/V sync is always a negative number.</span></div>
<div style="font-style:normal;font-size:13px;background-color:transparent;font-family:'times new roman','new york',times,serif"><span><br></span></div><div style="font-style:normal;font-size:13px;background-color:transparent;font-family:'times new roman','new york',times,serif">
<span>I wonder why the CPU usage appears *greater* when VDPAU is enabled?</span></div><div style="font-style:normal;font-size:13px;background-color:transparent;font-family:'times new roman','new york',times,serif">
<span><br></span></div><div style="font-style:normal;font-size:13px;background-color:transparent;font-family:'times new roman','new york',times,serif"><span>But most importantly, the speed up/slow down appears to be lessened. I'll keep my eye on it, the extent to which it is manifest depends very much on the video content being watched.</span></div>
<div style="font-style:normal;font-size:13px;background-color:transparent;font-family:'times new roman','new york',times,serif"><span><br></span></div><div style="font-style:normal;font-size:13px;background-color:transparent;font-family:'times new roman','new york',times,serif">
<span>Dan</span></div><div><br><blockquote style="border-left-width:2px;border-left-style:solid;border-left-color:rgb(16,16,255);margin-left:5px;margin-top:5px;padding-left:5px"> <div style="font-family:'times new roman','new york',times,serif;font-size:10pt">
<div style="font-family:'times new roman','new york',times,serif;font-size:12pt"><div class="im"> <div dir="ltr"> <font face="Arial"> <hr size="1"> <b><span style="font-weight:bold">From:</span></b> HP-mini <<a href="mailto:blm-ubunet@slingshot.co.nz" target="_blank">blm-ubunet@slingshot.co.nz</a>><br>
<b><span style="font-weight:bold">To:</span></b> <a href="mailto:mythtv-users@mythtv.org" target="_blank">mythtv-users@mythtv.org</a> <br> <b><span style="font-weight:bold">Sent:</span></b> Wednesday, 5 December 2012, 17:45<br>
<b><span style="font-weight:bold">Subject:</span></b> Re: [mythtv-users] Video 'waves' of
speed up, slow down watching recorded TV<br> </font> </div> <br></div><div class="im">On Wed, 2012-12-05 at 15:33 +0000, Dan Gravell wrote:<br>> This might be a little hard to describe... I am using a Zotac ZBox<br>> ID41 as a frontend only, connected to a backend via powerline<br>
> ethernet. It's a Mythbuntu 11.10 install.<br>> <br>> <br></div>> I'm using nouveau I think. Should I be using the proprietary NVidiaAnd the sp<div class="im"><br>> drivers? Mythbuntu offered both at installation time, and with no<br>
> other information as to which one to choose I decided on nouveau.<br><br>> I have tried VDPAU and VDPAU Slim, both seem to give the same<br>> behaviour.<br>> <br><br>That sounds like stuttering/frame dropping from having an under powered<br>
CPU performing decoding.<br>The later nouveau driver has VDPAU overlay support only..No decode so<br>the CPU is used.<br><br>I would try the nVidia proprietary driver & VDPAU normal.<br>The ION shared system RAM
setup could require a particular RAM<br>configuration (allocated size & number sticks), see Mythtv.org wiki..<br> <br>Brett.<br><br>_______________________________________________<br>mythtv-users mailing list<br><a href="mailto:mythtv-users@mythtv.org" target="_blank">mythtv-users@mythtv.org</a><br>
<a href="http://www.mythtv.org/mailman/listinfo/mythtv-users" target="_blank">http://www.mythtv.org/mailman/listinfo/mythtv-users</a><br><br><br> </div></div> </div> </blockquote></div> </div></div><br>_______________________________________________<br>
mythtv-users mailing list<br>
<a href="mailto:mythtv-users@mythtv.org">mythtv-users@mythtv.org</a><br>
<a href="http://www.mythtv.org/mailman/listinfo/mythtv-users" target="_blank">http://www.mythtv.org/mailman/listinfo/mythtv-users</a><br>
<br></blockquote></div><br></div><div class="gmail_extra">Interestingly, I have had the same behavior with all of my frontends with playback of my blu-rays under videos. I have several similar GPUs in my three Zotac IONITX-C-U, three Zotac ZBox ID11, and one NVidia GT210. Panning shots are the most obvious. The videos plays back slow-fast-slow-fast... Audio is unaffected, and no obvious dropped frames. It is still watchable, but rather annoying. I am running Mythbuntu 12.04 with .25. I will admit that I didn't do any debugging yet. I will look into it this weekend.</div>
<div class="gmail_extra"><br></div><div class="gmail_extra">-Tom</div>