Hello all.
First, the setup: AMD Athlon XP 2k+, ASUS A7V8X-MX SE mobo, 512M ram, and two Haupguage PVR 250s running Fedora Core 1 with the most recent stable atRPMs and MythTV CVS of last night. (But I had the same problem with 0.16 from atRPMs.) The ivtv version is 0.1.10-48.4_pre2_ck100zz.
Some (but not all) of my recordings have no audio. For example, of the 10 recordings it's made today, it's been five and five: 2am - yes, 3am - no, 4am - yes, 5am - yes, 11am - yes, 12pm - no, 1pm - no, 2pm - yes, 3pm - no, and 4pm - no.
I've checked all the logs I could think of and nothing indicates a problem. I get an identitical set of messages at the start of recordings that work and recordings that fail:
/var/log/messages:
...
[recording starting at 2:00am worked]
Jan 1 02:00:02 mythtv kernel: saa7115: decoder set picture bright=127 contrast=63 saturation=63 hue=0
Jan 1 02:00:02 mythtv last message repeated 3 times
Jan 1 02:00:02 mythtv kernel: ivtv: v4l2 ioctl: set frequency 6836
Jan 1 02:00:03 mythtv kernel: ivtv: Finished with Mute
Jan 1 02:00:03 mythtv kernel: saa7115: decoder set picture bright=127 contrast=63 saturation=63 hue=0
Jan 1 02:00:03 mythtv last message repeated 3 times
Jan 1 02:00:03 mythtv kernel: saa7115: decoder set size
Jan 1 02:00:05 mythtv kernel: saa7115: decoder disable output
Jan 1 02:00:05 mythtv kernel: saa7115: decoder enable output
[recording starting at 3:00am failed]
Jan 1 03:00:02 mythtv kernel: saa7115: decoder set picture bright=127 contrast=63 saturation=63 hue=0
Jan 1 03:00:03 mythtv last message repeated 3 times
Jan 1 03:00:03 mythtv kernel: ivtv: v4l2 ioctl: set frequency 6836
Jan 1 03:00:03 mythtv kernel: ivtv: Finished with Mute
Jan 1 03:00:03 mythtv kernel: saa7115: decoder set picture bright=127 contrast=63 saturation=63 hue=0
Jan 1 03:00:03 mythtv last message repeated 3 times
Jan 1 03:00:03 mythtv kernel: saa7115: decoder set size
Jan 1 03:00:05 mythtv kernel: saa7115: decoder disable output
Jan 1 03:00:05 mythtv kernel: saa7115: decoder enable output
[and 4:00am worked again]
Jan 1 04:00:02 mythtv kernel: saa7115: decoder set picture bright=127 contrast=63 saturation=63 hue=0
Jan 1 04:00:02 mythtv last message repeated 3 times
...
/var/log/mythtv/mythbackend.log:
...
2005-01-01 02:00:00.016 Finished recording Law & Order: Special Victims Unit on channel: 1060
2005-01-01 02:00:00.050 Changing from RecordingOnly to None
2005-01-01 02:00:02.868 Started recording "Law & Order: Special Victims Unit" on channel: 1060 on cardid: 1, sourceid 1 [which worked]
2005-01-01 02:00:03.275 Changing from None to RecordingOnly
2005-01-01 02:00:04.907 Found changes in the todo list.
2005-01-01 02:00:06.412 Scheduled 333 items in 1.5 seconds.
...
2005-01-01 03:00:00.009 Finished recording Law & Order: Special Victims Unit on channel: 1060
2005-01-01 03:00:00.066 Changing from RecordingOnly to None
2005-01-01 03:00:02.950 Started recording "Law & Order: Special Victims Unit" on channel: 1060 on cardid: 1, sourceid 1 [which failed]
2005-01-01 03:00:03.385 Changing from None to RecordingOnly
2005-01-01 03:00:04.969 Found changes in the todo list.
2005-01-01 03:00:06.388 Scheduled 365 items in 1.4 seconds.
...
2005-01-01 04:00:00.001 Finished recording Law & Order: Special Victims Unit on channel: 1060
2005-01-01 04:00:00.054 Changing from RecordingOnly to None
2005-01-01 04:00:02.043 Started recording "Law & Order: Special Victims Unit" on channel: 1060 on cardid: 1, sourceid 1 [worked]
2005-01-01 04:00:02.528 Changing from None to RecordingOnly
2005-01-01 04:00:04.062 Found changes in the todo list.
2005-01-01 04:00:05.907 Scheduled 365 items in 1.8 seconds.
...
I've verified that it is the recordings that are bad by playing them with mplayer. And it doesn't appear to be coupled with which tuner it picks for a show.
Does anyone have any ideas what could be broken, or better yet, how I might fix it? This system worked great until sometime in November.
Thank you for your time,
-William Lott
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