<HTML><BODY style="word-wrap: break-word; -khtml-nbsp-mode: space; -khtml-line-break: after-white-space; ">Hi.<DIV><BR class="khtml-block-placeholder"></DIV><DIV>I'm trying to find a way around a problem I have with my linux box (P4 3.4Ghz, 1GB of RAM, nvidia 6500 in PCI-Express x16)</DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV>The quality of HD channels from my DVB-T card is terrible. It has loss of sync between sound and video, image will freeze for 1s at a time etc...</DIV><DIV>Reading various web site,people it seems that the suggestion around would be to unable XvMC on the nividia.</DIV><DIV>If I unable this option in Settings -> TV Settings -> Playback, change from default to XvMD, then trying to watch TV again will always give me a Core dump</DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV>In the console, I see "Error: Could not open XvMC port ...</DIV><DIV>You may wish to verify that your DISPLAY</DIV><DIV>environment variable does not use an external network connection</DIV><DIV>You may also wish to verify that /etc/X11/XvMCConfig contains the correct</DIV><DIV>vendor's XvMC library"</DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV>Of course I checked those config files and they contain the right library name</DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV>I also set the variable XVMC_DEBUG=2 and I see in the console:</DIV><DIV>"NV-XVMC (WARN): failed to allocate AGP DMA buffer</DIV><DIV>NV-XVMC (WARN) allocated buffer DMA buffer instead</DIV><DIV>NX-XVMC (WARN): failed to allocate subpicture in AGP memory</DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV>I've tried various version of nVidia drivers as well as MythTV 0.18.1 and the last SVN version (including 20 minutes ago: revision #8724)</DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV>I also tried with the OpenGL vsync option, but it made no difference</DIV><DIV>Well, first I do not understand why my system isn't able to decode TVHD in software only, no doubt a 3.4Ghz P4 has enough guts to do so... While watching SD material, system is 92.5% idle, when watching HD material (or more accurately, trying to watch it, it's 95.3% idle)</DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV>If you have any recommendations on how to get around this, that would be really appreciated.</DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV>Thank you</DIV><DIV>Jean-Yves</DIV><DIV>ls</DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV><DIV> <P style="margin: 0.0px 0.0px 0.0px 0.0px"><FONT face="Helvetica" size="3" style="font: 12.0px Helvetica">---</FONT></P> <P style="margin: 0.0px 0.0px 0.0px 0.0px"><FONT face="Helvetica" size="3" style="font: 12.0px Helvetica">Jean-Yves Avenard</FONT></P> <P style="margin: 0.0px 0.0px 0.0px 0.0px"><FONT face="Helvetica" size="3" style="font: 12.0px Helvetica">Hydrix Pty Ltd - Embedding the net</FONT></P> <P style="margin: 0.0px 0.0px 0.0px 0.0px"><FONT face="Helvetica" size="3" style="font: 12.0px Helvetica">www.hydrix.com | fax +61 3 8573 5200 | office +61 3 8573 5299 | direct +61 3 8573 5200</FONT></P> </DIV><BR></DIV></BODY></HTML>