[mythtv-users] Truncated HDHR recordings

[Christopher Meredith]

On Sun, May 17, 2009 at 12:33 PM, Michael T. Dean
<mtdean at thirdcontact.com> wrote:
> On 05/17/2009 11:28 AM, Harry Devine wrote:
>> I searched Gossamer Threads for this, but I didn't really see anything
>> on this subject, so I thought I'd check with the list.  I have been
>> seeing lately that some recordings that I schedule on my HDHR get
>> truncated. Let me give 2 examples:
>>
>> 1) I recorded 24 last Monday on Fox.  I got 31 seconds and that was it.
>> 2) I recorded WWE Smackdown on MyNetworkTV on Friday, and all I got
>> was 14:23.
>>
>> The odd thing is that I don't see any errors in my backend log
>> whatsoever.  Here's an except from my backend log for Friday.  Note
>> that my recording rule is setup to record from 7:59PM US Eastern to
>> 10:02PM US Eastern:
> ...
>> 2009-05-15 19:59:02.685 Started recording: WWE Friday Night
>> SmackDown!: channel 5260 on cardid 4, sourceid 5
> ...
>> 2009-05-15 22:02:00.327 Finished recording WWE Friday Night
>> SmackDown!: channel 5260
> ...
>> Any ideas on what else I should be looking for to diagnose this?
>> Could it be some sort of DB corruption issue and be taken care of by a
>> DB optimize?
>
> Generally if the recording just stops midway through and no errors are
> shown in the log, it just means that the capture device quit sending
> data (or, more precisely, that Myth was unable to receive data from the
> capture card).  So, after the 14min 23seconds of good day, Myth wrote
> the rest of what the card gave it--0 bytes of data to cover the next 2
> 3/4 hours.

I've been experiencing the same thing with my HD-PVR. It only happens
sometimes, but I would still like to get to the bottom of it. I
haven't been around when it's happened to see what happens with the
HD-PVR itself, but I would like to see if it can't be prevented.

Could it be driver instability or something?