If you have this card, can you tell me if you have any issues with A/V sync on OTA, ATSC HDTV programs? <br><br>I have had an ongoing issue with audio 200-300mS behind video on most HDTV shows. I have considered several sources of the problem (kernel, playback, Alsa) but have come to the conclusion that it must be in the recording. I could very well be wrong but I think it is the tuner card because the problem is consistently worse on some channels (PBS). If it were a kernel latency, Alsa, or Myth sync issue, I would expect the problem to show up more consistently across channels, programs, and formats. Not to metion, this doesn't
<br>seem to be a widespread problem and the Dvico Fusion card does not seem to be that common.<br><br>Any guidance on how to troubleshoot this issue or comparative experience with this card would be greatly appreciated.<br>
<br>List of troubleshooting steps I've tried with no impact on the problem:<br>-Reload Alsa from cvs<br>-mythfrontend -v audio (nothing unusual)<br>-spdif, analog, alsa, no alsa, passthrough, no passthrough.<br>-standard kernel, prememptive kernel
<br>-realtime priority, rtlimits, run as root<br>-Myth 0.18, 0.19, svn<br>-Ubuntu Breezy, Ubuntu Dapper<br><br>Info on my system:<br>Two Dvico FusionHDTV5 cards (considering getting third HD3000 just to compare)<br>Intel Motherboard with on-board sound
<br>Latest Ubuntu Dapper kernel<br><br>Other potential:<br>-I read somewhere that a weak signal can create a/v sync issues. 95% of shows record OK with no obivous problems or bad fragments listed in the log but I will occasional miss a show due to weak signal/weather or see bad fragments show up in log. Any experience or knowledge to confirm that as a possiblity?
<br><br>One last item:<br>As long as I have the attention of Dvico owners, can you tell me if you typically see this show up in your syslog? I don't think it is a problem but am surprised that I have it logging in the system log.
<br><br>May 3 08:00:02 localhost kernel: [4513310.340000] cx88[0]/2: queue is empty - first active<br>May 3 08:00:02 localhost kernel: [4513310.340000] cx88[0]/2: cx8802_start_dma w: 0, h: 0, f: 2<br>May 3 08:00:02 localhost kernel: [
4513310.340000] cx88[0]/2: setting the interrupt mask<br>May 3 08:00:02 localhost kernel: [4513310.340000] cx88[0]/2: [d8fd2a80/0] cx8802_buf_queue - first active<br>May 3 08:00:03 localhost kernel: [4513311.061000] cx88[0]/2: cx8802_restart_queue
<br>May 3 08:00:03 localhost kernel: [4513311.061000] cx88[0]/2: cx8802_restart_queue: queue is empty<br>May 3 08:00:03 localhost kernel: [4513311.063000] cx88[0]/2: queue is empty - first active<br>May 3 08:00:03 localhost kernel: [
4513311.063000] cx88[0]/2: cx8802_start_dma w: 0, h: 0, f: 2<br>May 3 08:00:03 localhost kernel: [4513311.063000] cx88[0]/2: setting the interrupt mask<br><br>