[mythtv-users] Re: 2 DVB Problems
Aike Terjung
Aike at terjung.net
Tue Dec 23 07:43:38 EST 2003
Hello,
thanks for your answer. But i think this isn't the reason. I can not find
these settings in the scan output, but recording is working if i don't wait
to long from starting mythbackend to start the recording.
cu Aike
Am Dienstag, 23. Dezember 2003 13:09 schrieb martin north:
> dont know if this is your problem or not, but I always set the bandwidth
> and guard interval rather than leave it to "auto". I use a DVB-T in the UK
> though.
>
> I have found that DVB cards, drivers and applications dont often
> "autodetect" the correct settings. In my particular case it never detected
> the correct Inversion setting.
>
> Have you tried the 'scan' application that comes with the DVB drivers?
> Assuming that scan works, i would try to extract as much detail as possible
> from the resulting channel dump and fill up your tables accordingly....
>
> Aike Terjung writes:
> > Hi,
> >
> > these are the myqsl outputs:
> > mysql> select * from dvb_channel;
> > +--------+-----------+-----------+------------+-------------+-----------+
> >----
> > -------+------------+------+----------+-------+------------+-----------+-
> >---- ---------+-------------------+----------------+-----------+
> >
> > | chanid | serviceid | networkid | providerid | transportid | frequency |
> >
> > inversion | symbolrate | fec | polarity | satid | modulation | bandwidth
> > | lp_code_rate | transmission_mode | guard_interval | hierarchy |
> > +--------+-----------+-----------+------------+-------------+-----------+
> >----
> > -------+------------+------+----------+-------+------------+-----------+-
> >---- ---------+-------------------+----------------+-----------+
> >
> > | 1021 | 28114 | NULL | NULL | NULL | 410000000 |
> > | 0 6900000 | none | v | NULL | qam_64 | NULL | auto 0
> > | | auto | 0 |
> > | 1039 | 28204 | NULL | NULL | NULL | 426000000 |
> > | 0 6900000 | none | v | NULL | qam_64 | NULL | auto 0
> > | | auto | 0 |
> > | 1000 | 28106 | NULL | NULL | NULL | 410000000 |
> > | 0 6900000 | none | v | NULL | qam_64 | NULL | auto 0
> > | | auto | 0 |
> > | 1001 | 28006 | NULL | NULL | NULL | 394000000 |
> > | 0 6900000 | none | v | NULL | qam_64 | NULL | auto 0
> > | | auto | 0 |
> > | 1033 | 28228 | NULL | NULL | NULL | 426000000 |
> > | 0 6900000 | none | v | NULL | qam_64 | NULL | auto 0
> > | | auto | 0 |
> > | 1023 | 28112 | NULL | NULL | NULL | 410000000 |
> > | 0 6900000 | none | v | NULL | qam_64 | NULL | auto 0
> > | | auto | 0 |
> > | 1003 | 28111 | NULL | NULL | NULL | 410000000 |
> > | 0 6900000 | none | v | NULL | qam_64 | NULL | auto 0
> > | | auto | 0 |
> > | 1024 | 28108 | NULL | NULL | NULL | 410000000 |
> > | 0 6900000 | none | v | NULL | qam_64 | NULL | auto 0
> > | | auto | 0 |
> > | 1028 | 28014 | NULL | NULL | NULL | 394000000 |
> > | 0 6900000 | none | v | NULL | qam_64 | NULL | auto 0
> > | | auto | 0 |
> > | 1027 | 28203 | NULL | NULL | NULL | 426000000 |
> > | 0 6900000 | none | v | NULL | qam_64 | NULL | auto 0
> > | | auto | 0 |
> > | 1029 | 28201 | NULL | NULL | NULL | 426000000 |
> > | 0 6900000 | none | v | NULL | qam_64 | NULL | auto 0
> > | | auto | 0 |
> > | 1030 | 28108 | NULL | NULL | NULL | 410000000 |
> > | 0 6900000 | none | v | NULL | qam_64 | NULL | auto 0
> > | | auto | 0 |
> > | 1031 | 28108 | NULL | NULL | NULL | 410000000 |
> > | 0 6900000 | none | v | NULL | qam_64 | NULL | auto 0
> > | | auto | 0 |
> > | 1040 | 28011 | NULL | NULL | NULL | 394000000 |
> > | 0 6900000 | none | v | NULL | qam_64 | NULL | auto 0
> > | | auto | 0 |
> > | 1041 | 28008 | NULL | NULL | NULL | 394000000 |
> > | 0 6900000 | none | v | NULL | qam_64 | NULL | auto 0
> > | | auto | 0 |
> >
> > +--------+-----------+-----------+------------+-------------+-----------+
> >----
> > -------+------------+------+----------+-------+------------+-----------+-
> >---- ---------+-------------------+----------------+-----------+
> >
> > mysql> select * from dvb_pids;
> > +--------+-----+------+------+
> >
> > | chanid | pid | type | lang |
> >
> > +--------+-----+------+------+
> >
> > | 1039 | 401 | v | |
> > | 1023 | 702 | a | |
> > | 1003 | 601 | v | |
> > | 1021 | 901 | v | |
> > | 1000 | 101 | v | |
> > | 1001 | 110 | v | |
> > | 1033 | 401 | v | |
> > | 1024 | 301 | v | |
> > | 1039 | 402 | a | |
> > | 1023 | 701 | v | |
> > | 1003 | 602 | a | |
> > | 1021 | 902 | a | |
> > | 1000 | 102 | a | |
> > | 1001 | 120 | a | |
> > | 1024 | 302 | a | |
> > | 1033 | 402 | a | |
> > | 1028 | 660 | v | |
> > | 1027 | 301 | v | |
> > | 1027 | 302 | a | |
> > | 1028 | 670 | a | |
> > | 1029 | 101 | v | |
> > | 1029 | 102 | a | |
> > | 1030 | 301 | v | |
> > | 1031 | 302 | a | |
> > | 1031 | 301 | v | |
> > | 1040 | 610 | v | |
> > | 1040 | 620 | a | |
> > | 1041 | 320 | a | |
> > | 1041 | 310 | v | |
> >
> > +--------+-----+------+------+
> >
> > I am using DVB-C in NRW in Germany. The Cable Provider is ish.
> >
> > and here is the output of mythbackend with -v channel
> >
> > gargarmel:/home/aike# mythbackend -v channel
> > Starting up as the master server.
> > 2003-12-23 10:41:32 Probed: /dev/video - Television
> > 2003-12-23 10:41:32 Probed: /dev/video - Composite1
> > 2003-12-23 10:41:32 Probed: /dev/video - S-Video
> > 2003-12-23 10:41:32 Probed: /dev/video - Composite3
> > 2003-12-23 10:41:32 Probed: /dev/video - Television
> > 2003-12-23 10:41:32 Probed: /dev/video - Composite1
> > 2003-12-23 10:41:32 Probed: /dev/video - S-Video
> > 2003-12-23 10:41:32 Probed: /dev/video - Composite3
> > 2003-12-23 10:41:33 DVB#0 Using DVB card 0, with frontend VES1820 based
> > DVB-C frontend.
> > 2003-12-23 10:41:33 DVB#0 Trying to tune to channel 1027.
> > 2003-12-23 10:41:33 DVB#0 Frequency: 426000000 Symbol Rate: 6900000.
> > Inv:Off Fec:None Mod:64
> > 2003-12-23 10:41:33 DVB#0 Waiting for frontend event after tune.
> > 2003-12-23 10:41:33 DVB#0 WARNING - Status: CARRIER | VITERBI | SIGNAL |
> > NO LOCK!
> > 2003-12-23 10:41:34 DVB#0 Status: CARRIER | VITERBI | SIGNAL | SYNC |
> > LOCK. 2003-12-23 10:41:34 Enabled verbose msgs : important general
> > channel 2003-12-23 10:41:36 Found changes in the todo list.
> > 2003-12-23 10:41:36 Started recording "Wissenschaft: Schwerpunkt
> > " on channel: 1040 on cardid: 2, sourceid 2
> > 2003-12-23 10:41:36 DVB#0 Trying to tune to channel 1040.
> > 2003-12-23 10:41:36 DVB#0 Frequency: 394000000 Symbol Rate: 6900000.
> > Inv:Off Fec:None Mod:64
> > 2003-12-23 10:41:36 DVB#0 Waiting for frontend event after tune.
> > 2003-12-23 10:41:36 DVB#0 WARNING - Status: NO LOCK!
> > 2003-12-23 10:41:37 DVB#0 Status: CARRIER | VITERBI | SIGNAL | SYNC |
> > LOCK. 2003-12-23 10:41:37 Changing from None to RecordingOnly
> > 2003-12-23 10:41:37 DVB#0 Recorder: Card opened successfully.
> > 2003-12-23 10:41:38 DVB#0 WARNING - No data from card in 1 second.
> > 2003-12-23 10:41:39 DVB#0 WARNING - No data from card in 1 second.
> > 2003-12-23 10:41:40 DVB#0 WARNING - No data from card in 1 second.
> > 2003-12-23 10:41:41 DVB#0 WARNING - No data from card in 1 second.
> > 2003-12-23 10:41:42 DVB#0 WARNING - No data from card in 1 second.
> > 2003-12-23 10:41:43 DVB#0 WARNING - No data from card in 1 second.
> > 2003-12-23 10:41:44 DVB#0 WARNING - No data from card in 1 second.
> > 2003-12-23 10:41:45 DVB#0 WARNING - No data from card in 1 second.
> > 2003-12-23 10:41:46 DVB#0 WARNING - No data from card in 1 second.
> >
> > i tried to tune to the channel with czap and record with ts2ps after this
> > but the size of the resulting file is also 0 bytes.
> > Also unloading the dvb modules and reloading them does not help only
> > rebooting helps.
> >
> > could this problem cause by mythtv holding the card "opend" without
> > recording for a long time? This problem will not appear when i stop the
> > mythtv-backend just after a reboot, wait 2 hours and than start
> > myth-backend and record directly.
> >
> > cu Aike
> >
> > Am Montag, 22. Dezember 2003 15:19 schrieb Kenneth Aafløy:
> >> Hi!
> >>
> >> > Hello,
> >> >
> >> > i have the same problem until now, changing the FEC value
> >> > doesn't help me out.
> >> > DVB Recording will result in this message, when mythbackend
> >> > is running some
> >> > time without recording:
> >> >
> >> > 2003-12-22 13:24:28 Started recording "Wissenschaft: Schwerpunkt
> >> > " on channel: 1040 on cardid: 2, sourceid 2
> >> > 2003-12-22 13:24:29 DVB#0 WARNING - Status: NO LOCK!
> >> > 2003-12-22 13:24:29 Changing from None to RecordingOnly
> >> > 2003-12-22 13:24:29 DVB#0 Recorder: Card opened successfully.
> >> > 2003-12-22 13:24:30 DVB#0 WARNING - No data from card in 1 second.
> >> > 2003-12-22 13:24:31 DVB#0 WARNING - No data from card in 1 second.
> >> > 2003-12-22 13:24:32 DVB#0 WARNING - No data from card in 1 second.
> >> > ...
> >> >
> >> > this is realy not what i like to see there.
> >>
> >> Try running the backend with 'mythbackend -v channel', which will be a
> >> bit more informative when tuning. It looks like you have either a bad
> >> signal, or have some of the parameters slightly off. Also send a dump of
> >> the dvb_channel and dvb_pids tables, with info on what location you are
> >> trying to receive:
> >>
> >> # mysql -u <mythuser> -p -h <mythhost> mythconverg
> >> mysql> select * from dvb_channel;
> >> mysql> select * from dvb_pids;
> >>
> >> Kenneth
> >>
> >> _______________________________________________
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> >> mythtv-users at mythtv.org
> >> http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
> >
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