[mythtv-users] Freeview BBC Mux Break Up On Some Recordings Then Fine On Other Recordings

[nospam312]

Hopefully it is not a hardware restriction. Details of dmesg below.  Could
it be a driver problem?

dmesg has lines with "dvb-usb: will pass the complete MPEG2 transport
stream to the software demuxer."

The USB stick says it is supported here
http://www.linuxtv.org/wiki/index.php/Hauppauge_WinTV-Duet-HD-Stick

lsusb returns 2040:5200 Hauppauge.






On 6 April 2013 18:20, John Pilkington <J.Pilk at tesco.net> wrote:

> On 06/04/13 15:35, nospam312 wrote:
>
>>         Is it signal related. My hauppauge tuners are susceptible to both
>>         signals that are too weak or too strong
>>
>>         Martin
>>
>>
>>     That's certainly the most obvious question. Are you in the middle of
>>     a forest/behind a large construction site/trying to use an an indoor
>>     aerial?
>>
>>     What does mythtvsetup show for your Transports?  For a main-service
>>     area location there should probably be 5 and only 5 SD transports,
>>     each with a transport-id  and a net-id.  If it's not like that try
>>     retuning; see eg Ticket #10217 comment 15.  I used an HD tuner for
>>     that, but the general idea is similar if you have only SD.
>>
>>
>> I think the aerial is fine as I have no problems when used on the TV.
>> The aerial is on the roof good line of sight.
>>
>> All other channels and muxes are fine also.  I am SD only - no HD.  I
>> only have 5 multiplexes in the dtv_multiplex table and 5 unique pat_tsid
>> in the channelscan_channel table.
>>
>> It is a bit strange that it is only the BBC mux that has the problem.
>>
>> When tuning the signal strength is between 65-70% depending on multiplex
>> so it seems to be ok (that does not seem too strong or too weak).
>>
>> I think the BBC multiplex is moving soon due to 4G reorganisation I will
>> cross fingers and hope that solves it.
>>
>> Thanks
>>
>
> It's always possible, of course, that you have some local problem.
>
> I'm not sure that I know which device you have, if it features here, or if
> more info about it is available.
>
> http://linuxtv.org/wiki/index.**php/DVB-T_USB_Devices<http://linuxtv.org/wiki/index.php/DVB-T_USB_Devices>
>
> I had problems with a Freecom/WideView device, purchased around 2006,
> because it included a hardware PID filter with only 15 'slots'.  One
> symptom was a continuous stream of error messages when it was in use.
>
> The wiki says the filter limits the number of simultaneous channels, and
> that's more likely to affect the BBC mux.  That mux also has lots of radio
> channels, and a limited device might do worse because of that. This
> oughtn't to be a problem if dmesg says the device 'will pass all streams to
> the demuxer';  if it doesn't you might consider getting something else.
>
>
> John P
>
>
>
>
>
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