[mythtv-users] 0.25.3: 0-Byte recordings, how to fix?

cvb at kruemel.org cvb at kruemel.org
Sun Nov 4 08:18:42 UTC 2012


Hi - I recently upgraded my machine from Ubuntu 10.04 to 12.04, and 
hence now have mythtv 0.25. With this, I am seeing a significant 
increase of 0-Byte-recordings.

It appears that mythtv thinks it is recording the shows, but nothing 
happens. However, mythtv keeps thinking it is recording the show even 
after it has stopped - until I quit and restart mythtv. Also, restarting 
helps to enable recordings with more than 0 Bytes again.

Not sure this is a helpful error description. I also have added a log 
below showing when the recording should have started and ended. mythtv 
actually did only stop "recording" when I pkilled it this morning:

Nov  3 20:04:30 alpha mythbackend[10195]: I Scheduler mythdbcon.cpp:395 
(PurgeIdleConnections) New DB connection, total: 11
Nov  3 20:04:30 alpha mythbackend[10195]: I TVRecEvent tv_rec.cpp:1544 
(HandlePendingRecordings) TVRec(2): ASK_RECORDING 2 28 0 0
Nov  3 20:04:30 alpha mythbackend[10195]: I TVRecEvent tv_rec.cpp:1544 
(HandlePendingRecordings) TVRec(1): ASK_RECORDING 1 28 0 0
Nov  3 20:05:00 alpha mythbackend[10195]: I TVRecEvent tv_rec.cpp:1030 
(HandleStateChange) TVRec(1): Changing from None to RecordingOnly
Nov  3 20:05:00 alpha mythbackend[10195]: I TVRecEvent 
mythdbcon.cpp:395 (PurgeIdleConnections) New DB connection, total: 11
Nov  3 20:05:00 alpha mythbackend[10195]: I TVRecEvent tv_rec.cpp:3503 
(TuningCheckForHWChange) TVRec(1): HW Tuner: 1->1
Nov  3 20:05:00 alpha mythbackend[10195]: I CoreContext 
mythdbcon.cpp:395 (PurgeIdleConnections) New DB connection, total: 11
Nov  3 20:05:00 alpha mythbackend[10195]: E TVRecEvent 
dvbchannel.cpp:1103 (GetUncorrectedBlockCount) 
DVBChan(1:/dev/dvb/adapter0/frontend0): Getting Frontend uncorrected 
block count failed.#012#011#011#011eno: Operation not supported (95)
Nov  3 20:05:00 alpha mythbackend[10195]: W TVRecEvent 
dvbsignalmonitor.cpp:91 (DVBSignalMonitor) 
DVBSM(/dev/dvb/adapter0/frontend0): Cannot count Uncorrected 
Blocks#012#011#011#011eno: Operation not supported (95)
Nov  3 20:05:00 alpha mythbackend[10195]: N Scheduler 
autoexpire.cpp:263 (CalcParams) AutoExpire: CalcParams(): Max required 
Free Space: 3.0 GB w/freq: 14 min
Nov  3 20:05:00 alpha mythbackend[10195]: I Scheduler 
scheduler.cpp:2513 (HandleRecordingStatusChange) Tuning recording: 
"Blitz - Cop-Killer vs. Killer-Cop":Thriller: channel 1131 on cardid 1, 
sourceid 1
Nov  3 20:05:01 alpha mythbackend[10195]: N DVBRead 
dtvsignalmonitor.cpp:354 (HandlePMT) DTVSM(/dev/dvb/adapter0/frontend0): 
PMT says program 131 is encrypted
Nov  3 20:05:03 alpha mythbackend[10195]: I DVBRead 
mpeg/mpegstreamdata.cpp:1980 (ProcessEncryptedPacket) PID 0x504 status: 
Encrypted
Nov  3 20:05:03 alpha mythbackend[10195]: I DVBRead 
mpeg/mpegstreamdata.cpp:1980 (ProcessEncryptedPacket) PID 0x503 status: 
Encrypted
Nov  3 20:05:04 alpha mythbackend[10195]: I DVBRead 
mpeg/mpegstreamdata.cpp:1980 (ProcessEncryptedPacket) PID 0x4ff status: 
Encrypted
Nov  3 20:07:02 alpha mythbackend[10195]: N DVBRead 
dtvsignalmonitor.cpp:354 (HandlePMT) DTVSM(/dev/dvb/adapter0/frontend0): 
PMT says program 131 is encrypted
Nov  3 20:07:03 alpha mythbackend[10195]: N DVBRead 
dtvsignalmonitor.cpp:354 (HandlePMT) DTVSM(/dev/dvb/adapter0/frontend0): 
PMT says program 131 is encrypted
Nov  3 20:07:04 alpha mythbackend[10195]: I DVBRead 
mpeg/mpegstreamdata.cpp:1980 (ProcessEncryptedPacket) PID 0x503 status: 
Encrypted
Nov  3 20:07:07 alpha mythbackend[10195]: I DVBRead 
mpeg/mpegstreamdata.cpp:1980 (ProcessEncryptedPacket) PID 0x4ff status: 
Encrypted
Nov  3 20:15:08 alpha mythbackend[10195]: N DVBRead 
dtvsignalmonitor.cpp:354 (HandlePMT) DTVSM(/dev/dvb/adapter0/frontend0): 
PMT says program 131 is encrypted
Nov  3 20:15:11  mythbackend[10195]: last message repeated 2 times
Nov  3 20:15:11 alpha mythbackend[10195]: I DVBRead 
mpeg/mpegstreamdata.cpp:1980 (ProcessEncryptedPacket) PID 0x503 status: 
Encrypted
Nov  3 20:15:11 alpha mythbackend[10195]: I DVBRead 
mpeg/mpegstreamdata.cpp:1980 (ProcessEncryptedPacket) PID 0x4ff status: 
Encrypted
Nov  3 20:15:15 alpha mythbackend[10195]: I DVBRead 
mpeg/mpegstreamdata.cpp:1980 (ProcessEncryptedPacket) PID 0x504 status: 
Unknown
Nov  3 20:15:17 alpha mythbackend[10195]: I DVBRead 
mpeg/mpegstreamdata.cpp:1980 (ProcessEncryptedPacket) PID 0x504 status: 
Encrypted
Nov  3 22:03:00 alpha mythbackend[10195]: I TVRecEvent tv_rec.cpp:1030 
(HandleStateChange) TVRec(1): Changing from RecordingOnly to None

I have a TT-3200 with a CAM in my system, since some years. 70% of the 
recordings are working (encrypted or not), 30% are failing with 0 Bytes 
recordings (encrypted or not). Restarting mythbackend helps to recover 
the situation - after a recording has failed.

Happy to provide additional information required to fix the problem.

Thanks, Chris


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