[mythtv-users] Cannot watch tv from DVB-T stick

[hannes at linus.priv.at]

Hi Nick,

thank you for your tip. When setting up a second video source I can
use now both the PVR-350 and the DVB-T stick. I erroneously thought
that the 'video sources' refer only to the EPG-data.

-jr

Nick Morrott wrote:
> On 28/02/2008, Johannes Reisinger <hannes at linus.priv.at> wrote:
>> Hi,
>>
>>  I am running MythTV 0.20.2 for some months without problems. I am using
>>  a PVR-350.
>>  Recently I tried to add a second capture device, an MSI MegaSky 580 USB
>>  DVB-T receiver.
>>  It works in principle; I scanned the channels to a channel.conf and can
>>  watch TV with mplayer.
>>  Then I tried to install it in mythtv. I first tried to scan the channels
>>  - it worked; but when I tried to watch TV, I see only white noise on the
>>  screen. I tried to import from channels.conf - same effect. I manually
>>  deleted the corresponding entries from the sql-table 'channel' and
>>  'dtv_multiplex' and imported channels.conf again - same effect.
>>  I also corrected the 'mplexid' bug - same effect.
>>
>>  Watching TV from the PVR-350 works fine as before. In the
>>  mythbackend.log, there is only one entry 'TVRec(1): HW Tuner: 1->1, also
>>  wenn switching from PVR-350 to MegaSky 580 channels - may this be an
>>  indication that mythtv tries to use the PVR-350 also for the MegaSky 580
>>  channels?
>>
>>  For reference, I append the channel and dtv_multiplex tables:
> 
> <DB tables snipped>
> 
> Looking quickly at the database tables you posted, you have all
> channels assigned to the same video source (sourceid = 2). If you are
> using capture cards that use different tuning methods (analogue tuner
> on PVR-350, digital tuner on DVB-T card), you need to use separate
> video sources, and assign the correct video source to the correct card
> input on the Input Connections page in mythtv-setup.
> 
> From your channels table, I am guessing that channels 1-10 are tuned
> on the PVR-350 using its analogue tuner, and that channels 10xxx-11xxx
> (7 in total) are the imported channels for the DVB-T card. You need to
> ensure that these 2 sets of channels are on separate video sources.
> Because all of the channels are currently assigned to the same video
> source, and that video source is attached to the PVR-350 card, your
> system will try to tune the DVB-T channels using the PVR-350 card,
> which explains the behaviour you think may be (and is) happening.
>