[mythtv-users] 0 byte recordings with HD-PVR and Myth 0.28 on Ubuntu 14.04.2

Fred Hamilton fred at yonkitime.com
Wed May 13 19:34:56 UTC 2015


On Wed, May 13, 2015 at 12:01 PM, Gary Buhrmaster <gary.buhrmaster at gmail.com
> wrote:

> On the other hand, you state that cat does not work
> after the device is wedged.  That indicates the device,
> and not MythTV.  MythTV may trigger the event, but
> a device which does not recover is a broken device
> (or driver).  Perhaps you need to turn on debugging
> of the driver.
>

Will try that next.

To everyone suggesting it could be the channel changing/sleep time:  that's
a great suggestion and I've run into that problem previously, but I've
ruled it out this time by always staying on the same default channel, and I
verified that when you change the channel to the same channel, it doesn't
disrupt the video at all.

Here's my mythbackend -v output showing the frontend launching, the
frontend asking to record a channel, and the failure (I removed the
timestamps for readability):
I  BackendContext: Frontend 'mythtv' connected.
I  Reschedule requested for MATCH 1213 0 0 - SaveRule Star Trek
I  Scheduled 271 items in 0.1 = 0.03 match + 0.00 check + 0.05 place
I  TVRec[1]: Changing from None to RecordingOnly
I  TVRec[1]: HW Tuner: 1->1
I  V4LChannel[1](/dev/video0): SetInputAndFormat(1, NTSC) (v4l v2)
input_switch: 0 mode_switch: 0
N  AutoExpire: CalcParams(): Max required Free Space: 3.0 GB w/freq: 15 min
I  Tuning recording: "Star Trek":"Miri": channel 2824 on cardid 1, sourceid
2
C  ProgramInfo(): Failed to find recorded entry for 0.
E  AnalogSigMon[1](/dev/video0): Audio desired 4, current 3 min 0 max 4
E  AnalogSigMon[1](/dev/video0): Changed audio encoding from 3 to 4.
I  Updating status for "Star Trek":"Miri" on cardid 1 (Tuning => Recording)
I  TVRec[1]: rec->GetPathname():
'/media/disk2/mythtv_recordings/2824_20150513185800.mpg'
E  MPEGRec[1](/dev/video0): StartEncoding: read failed, retry in 100 msec:
            eno: Resource temporarily unavailable (11)
E  DevRdB(/dev/video0): Poll giving up 2
E  MPEGRec[1](/dev/video0): Device error detected
E  MPEGRec[1](/dev/video0): StartEncoding: read failed, retry in 100 msec:
            eno: Resource temporarily unavailable (11)
E  DevRdB(/dev/video0): Poll giving up 2
E  MPEGRec[1](/dev/video0): Device error detected
E  MPEGRec[1](/dev/video0): StartEncoding: read failed, retry in 100 msec:
etc...

OK, off to debug driver and USB.  As always I appreciate the help from this
awesome community!
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