Hi,<br> When I use XvMC with HD channels, the audio break up often and I see lot of these messages like these.<br><br><br>2007-05-03 15:31:
18.312 WriteAudio: buffer underrun<br>2007-05-03 15:31:18.298 NVP: Video is 7.24978 frames behind audio (too slow), skipping A/V wait.<br><br><br>I have AMD Athlon64 3000+ processor with 512MB RAM, ATI HDTV Wonder, NVIDIA FX 5200 video card & SB Live card
<br>I have ubuntu feisty(i386) with the latest kernel and mythtv packages. <br><br>Without
XvMC, I have no problem with the video or audio. I trying to get this
XvMC working, so I can setup another computer for frontend with a less
CPU power.
<br><br>I have XVideoTextureSyncToVBlank & XVideoBlitterSyncToVBlank turned off in nvidia settings.<br>The xorg.conf has "UseEvents" set to "true". I have tried different NVAGP options. <br><br>XvMC works fine with mplayer. I tried playing a HD recording with mplayer -vo xvmc and it plays without any problem. If I watch the same recording with MythTV, I get audio stutter problem with lot of "WriteAudio: buffer underrun".
<br><br>Thanks,
<br><span class="sg">Siva</span>