[mythtv-users] Problem with DVB USB and two simultaneous recordings

[Peter Bennett (cats22)]

On 10/03/2012 04:25 AM, John Pilkington wrote:
> On 03/10/12 04:31, Peter Bennett (cats22) wrote:
>> Using Mythtv 0.25 from the mythbuntu repository -
>> mythtv_0.25.2+fixes.20120828.d519276.
>> I have two Pinnacle 801E USB devices. I have never had a problem with
>> them, but in the last week, when the system records two programs on the
>> same multiplex using the same Pinnacle tuner, the backend hangs, and
>> neither program is recorded (one program has a mpg file of around 300
>> bytes and the other has no file at all). The frontend cannot connect to
>> the backend when this happens. Another recording that used the other
>> tuner at the same time is fine. I had to kill the backend to be able to
>> connect to it again. This has happened twice, so it is not just a
>> glitch. I used to be able to record two programs at the same time, but
>> it seems that some recent update to the backend may have broken it. Has
>> anybody else had this experience? For now I have set the tuners to only
>> record one program at a time on each, but I wonder if there is a better
>> fix for this.
>> Peter
>
> I would try a rescan. There have been recent changes.  If the
> Transports Editor in mythtvsetup shows 5 SD transports, each with a
> netid (9018) and a transportid, just delete all channels and Scan all
> known transports.  Or search postings here in the past week.
>
> Of course it might be something else.  :-)
>
> John P
>
>
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>
Thanks for the suggestion. I did a DVB rescan and spent a couple of
hours fixing the channel numbers, call signs, xmltvids and channel names.
I still have the same problem. If it records channels 704 and 706 at the
same time, one channel records a 300 byte file and the other records
nothing.
I can watch those two channels at the same time from the same input
device, using live TV on two front ends, yet scheduled recordings that
start on the two channels at the same time cause some sort of deadlock.
For now, I am setting the capture devices to only record one channel at
a time.
Perhaps there is a bug?

Peter