[mythtv-users] Problem with tuning DVB-T

[Simon at the Threshold]

Hi Malcom,

Could this be a privledges/permissions problem with the /dev/dvb 
adaptors for the user your running as.

As a confidence check as the user your using run

	./dvbstream -c 1 -ps 640 641 -o | mplayer -nocache -

If this works then the problem is with mythtv if it doesn't then perhaps 
your config/install isn't right.

Other than that a lot of DVB fixes went in last night so I dare say its 
a little bleeding edge... <WInce>

Simon

Malcolm Smith wrote:
> The setup worked with CVS from about 24 Dec. I recently updated the CVS 
> and recompiled (last night 5pm UK time). Now the DVB won't tune.
> 
> It also completely crashes mythbackend... surely the behaviour for the 
> driver should be to terminate gracefully to allow other recordings to 
> proceed?
> 
> Anybody any ideas?
> 
> -malc-
> 
> 2004-01-22 09:23:44 Started recording "Class TV: Numbertime" on channel: 
> 1015 on
> cardid: 1, sourceid 1
> 2004-01-22 09:23:44 DVB#0 WARNING - Unsupported inversion option 'auto', 
> falling
> back to 'off'
> 2004-01-22 09:23:44 DVB#0 WARNING - Unsupported bandwidth parameter.
> 2004-01-22 09:23:44 DVB#0 ERROR - Setting Frontend failed.
>          (22) Invalid argument
> 2004-01-22 09:23:44 DVB#0 ERROR - Tuning for channel #6 failed.
> 2004-01-22 09:23:44 Changing from None to RecordingOnly
> 2004-01-22 09:23:45 DVB#0 Recorder: Card opened successfully.
> 2004-01-22 09:23:45 DVB#0 ERROR - Failed to set filter for pid 0.
>          (16) Device or resource busy
> 
> - Myth crashes at this point.
> 
> 
> mysql> select * from dvb_channel where chanid=1015;
> +--------+-----------+-----------+------------+-------------+-----------+-----------+------------+------+----------+-------+------------+-----------+--------------+--------------+-------------------+----------------+-----------+-----------+------------+------------+---------------+----------------+----------+------------+---------+----------+ 
> 
> | chanid | serviceid | networkid | providerid | transportid | frequency 
> | inversion | symbolrate | fec  | polarity | satid | modulation | 
> bandwidth | hp_code_rate | lp_code_rate | transmission_mode | 
> guard_interval | hierarchy | fec_inner | pids_video | pids_audio | 
> pids_teletext | pids_subtitles | pids_pcr | pids_other | cryptid | 
> pmtcache |
> +--------+-----------+-----------+------------+-------------+-----------+-----------+------------+------+----------+-------+------------+-----------+--------------+--------------+-------------------+----------------+-----------+-----------+------------+------------+---------------+----------------+----------+------------+---------+----------+ 
> 
> |   1015 |      NULL |      NULL |       NULL |        NULL | 842166670 
> | 0         |    6900000 | 2/3  | V        |  NULL | qam_64     | 
> 8         | 2/3          | 1/2          | 2                 | 
> 1/32           | n         | auto      | 620        | 621        | 
> 4671          | NULL           | NULL     | NULL       |    NULL | 
> NULL     |
> +--------+-----------+-----------+------------+-------------+-----------+-----------+------------+------+----------+-------+------------+-----------+--------------+--------------+-------------------+----------------+-----------+-----------+------------+------------+---------------+----------------+----------+------------+---------+----------+ 
> 
> 1 row in set (0.00 sec)
> 
> mysql> select * from dvb_pids where chanid=1015;
> +--------+-----+------+------+
> | chanid | pid | type | lang |
> +--------+-----+------+------+
> |   1015 | 620 | v    |      |
> |   1015 | 621 | a    |      |
> +--------+-----+------+------+
> 2 rows in set (0.00 sec)
> 
> 
> 
> 
> Line from Channels.conf
> 
> CBBC 
> Channel:754166670:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_3_4:FEC_3_4:QAM_16:TRAN
> SMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:620:621:4671
> 
> 
> 
> 
> 
> 
> 
> 
> 
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> 
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