[mythtv-users] can watch live tv but cannot record on some channels
Patrick Mansfield
patman at aracnet.com
Sun May 4 23:42:32 UTC 2008
On Sat, May 03, 2008 at 04:36:07PM -0700, Patrick Mansfield wrote:
> Hi -
>
> My setup was working fine, but a few weeks ago recordings for one channel
> stopped working, even though I can watch live TV fine for that channel.
>
> I have a QAM pchdtv tuner, running current 0.21 from svn, on an up to date
> fedora 7, with comcast. A single combined FE/BE setup.
>
> I tried both channels on that mplexid, and they both have the same problem -
> I can watch live tv, but scheduled recordings end up with no file.
>
> Other channels are working fine.
>
> I don't see anything obvious in log output for "mythbackend -v all", but
> it never seems to actually tune the channel - I never see the
> CreatePATSingleProgram() logged like I do for good recordings.
>
> Any ideas on what to look at or change?
>
> It's possible (or even likely) that comcast changed something, but in that
> case I would have expected live tv to also fail.
>
> Thanks ...
Anyone?
I guess I can re-scan and see what happens.
Here are some of the database entries. The bad ones are on mplexid 195
(channel 49-1 and 6-1), example working ones are on mplexid 202 (channels
8-1, 2-1, and 8-2).
What is freqid used for? I assume my original scan via mythtv filled them in.
mysql> select * from channel where mplexid=195 or mplexid=202;
+--------+---------+--------+----------+----------+-------------+------+----------+--------------+---------+-------------+----------+------------+--------+-------+----------+----------+---------+---------------+---------------+---------+-----------+-----------+----------+-----------------+-----------------+---------------------+-------------------+------------+
| chanid | channum | freqid | sourceid | callsign | name | icon | finetune | videofilters | xmltvid | recpriority | contrast | brightness | colour | hue | tvformat | commfree | visible | outputfilters | useonairguide | mplexid| serviceid | atscsrcid | tmoffset | atsc_major_chan | atsc_minor_chan | last_record | default_authority | commmethod |
+--------+---------+--------+----------+----------+-------------+------+----------+--------------+---------+-------------+----------+------------+--------+-------+----------+----------+---------+---------------+---------------+---------+-----------+-----------+----------+-----------------+-----------------+---------------------+-------------------+------------+
| 1081 | 8-1 | 91 | 1 | KGW-HD | KGW | | 0 | | 20378 | 0 | 32768 | 32768 | 32768 | 32768 | ATSC | 0 | 1 | | 1 | 202| 7 | NULL | 0 | 8 | 1 | 2008-05-03 12:19:27 | | -1 |
| 1021 | 2-1 | 91 | 1 | KATU-DT | KATU | | 0 | | 20292 | 0 | 32768 | 32768 | 32768 | 32768 | ATSC | 0 | 1 | | 1 | 202| 2 | NULL | 0 | 2 | 1 | 2008-05-03 19:59:31 | | -1 |
| 1082 | 8-2 | 91 | 1 | Weather | KGW Weather | | 0 | | 32190 | 0 | 32768 | 32768 | 32768 | 32768 | ATSC | 1 | 1 | | 1 | 202| 10 | NULL | 0 | 8 | 2 | 0000-00-00 00:00:00 | | -1 |
| 1491 | 49-1 | 80 | 1 | KPDX-DT | KPDX | | 0 | | 21255 | 0 | 32768 | 32768 | 32768 | 32768 | ATSC | 0 | 1 | | 1 | 195| 3 | NULL | 0 | 49 | 1 | 2008-05-02 19:18:06 | | -1 |
| 1061 | 6-1 | 80 | 1 | KOIN-DT | KOIN | | 0 | | 21722 | 0 | 32768 | 32768 | 32768 | 32768 | ATSC | 0 | 1 | | 1 | 195| 63 | NULL | 0 | 6 | 1 | 2008-05-03 18:00:02 | | -1 |
+--------+---------+--------+----------+----------+-------------+------+----------+--------------+---------+-------------+----------+------------+--------+-------+----------+----------+---------+---------------+---------------+---------+-----------+-----------+----------+-----------------+-----------------+---------------------+-------------------+------------+
5 rows in set (0.00 sec)
mysql> select * from dtv_multiplex where mplexid=202 or mplexid=195;
+---------+----------+-------------+-----------+-----------+-----------+------------+------+----------+------------+-----------+--------------+-------------------+----------------+---------+---------------+-----------+--------------+------------+----------------+---------------------+
| mplexid | sourceid | transportid | networkid | frequency | inversion | symbolrate | fec | polarity | modulation | bandwidth | lp_code_rate | transmission_mode | guard_interval | visible | constellation | hierarchy | hp_code_rate | sistandard | serviceversion | updatetimestamp |
+---------+----------+-------------+-----------+-----------+-----------+------------+------+----------+------------+-----------+--------------+-------------------+----------------+---------+---------------+-----------+--------------+------------+----------------+---------------------+
| 195 | 1 | NULL | NULL | 561000000 | a | 0 | auto | v | qam_256 | a | auto | a | auto | 0 | qam_256 | a | auto | atsc | 33 | 2008-03-18 22:51:12 |
| 202 | 1 | NULL | NULL | 627000000 | a | 0 | auto | v | qam_256 | a | auto | a | auto | 0 | qam_256 | a | auto | atsc | 33 | 2008-03-18 22:52:10 |
+---------+----------+-------------+-----------+-----------+-----------+------------+------+----------+------------+-----------+--------------+-------------------+----------------+---------+---------------+-----------+--------------+------------+----------------+---------------------+
2 rows in set (0.00 sec)
-- Patrick Mansfield
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