> I'm having trouble getting good recordings from either of my PVR150 > cards. I'm running KnoppMyth R5B7 (2.6.15-chw-2 kernel) and IVTV > 0.4.4. I don't see any obvious errors (though I am a Linux noob) and > the cards seem to work fine in that they do record and I can change > channels and all that jazz.
> I see blocky artifacts appear frequently--ever few seconds, sometimes > nearly constant. Normally, I use the tuner input, though I've tried > this with the composite input. I've tried changing the bitrate and > using a lower one certainly makes it happen less, but doesn't > eliminate the problem. Even a 1Mb bitrate--which results in an > unwatchable picture--still shows this blocky behavior, though not as > severely as with an 8Mb bitrate. I've taken a few screenshots, if it > helps: > http://www.danandsherree.com/miscfiles/1.png > http://www.danandsherree.com/miscfiles/2.png > Additionally, I see frames jumping out of order. A frame from perhaps > 1 second in the future of the show will appear as I'm watching, if > that makes sense. I bought a PVR-150 (MCE) within the past few months for my first mythtv system and experienced this exact same issue, although in my case it was an intermittent problem. I'm using S-Video input from a DirecTV satellite receiver. At first, I thought it was the satellite signal since we had some severe thunderstorms at the time, until I hooked the receiver directly to a TV and it was perfect quality. In my case, it turned out we had a slight power brownout which wasn't enough to reboot the mythtv server, but caused the PVR-150's MPEG encoder to go haywire. Commercial flagging on those corrupted files would even fail. Shutting down the computer for 30 seconds and rebooting it fixed the problem every time it occurred for me. I would suggest putting your computer on some sort of power conditioner (but don't exceed the conditioners maximum load, as I did, which made things worse for me) and look for a high quality power supply. I'd also check to see that you're using the latest ivtv drivers and firmware from hauppage's website just in case. Good luck! -- Brian Weaver _______________________________________________ ivtv-users mailing list [email protected] http://ivtvdriver.org/mailman/listinfo/ivtv-users
