<br><br><div><span class="gmail_quote">On 11/29/06, <b class="gmail_sendername">Roland Roberts</b> <<a href="mailto:roland@astrofoto.org">roland@astrofoto.org</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;">
I missed the original post, but...<br><br>I've have my PVR-500 for about a year, and since the upgrade to ivtv<br>0.80, I've had problems. 0.81 is no different. I have several channels<br>which are problematic. At some points it acts very much like the mpeg
<br>encoder/decoder is "confused" and image blocks get all jumbled. Then it<br>will suddenly settle down and work again for a while. This happens both<br>when watching live TV and when recording.<br></blockquote>
</div><br>This sounds like a dma problem and not the same problem as I am having with the prv500. <br>Actually, I had a similar dma problem with my pvr250 which I have connected to an older <br>dual processor athlon mp 2400. To solve my issue I patched ivtv to not use dma. Look at the
<br>source code for PIO. It works flawlessly but takes 25% of one cpu while recording. I did this <br>patch a long time ago, as I am using a 2.6.13 kernel on that box which is my master backend <br>and I record several hours a day as I have > 600 GB of recorded shows at the moment and
<br>90%+ of this is with the pvr250.<br><br>John<br><br>