[mythtv-users] Unable to change channels (UK Winterhill)

Jksj jksjdevelop at gmail.com
Fri Apr 12 20:46:53 UTC 2013


On 12/04/13 16:55, Roy Lofthouse wrote:
> Yep, deleted channels and transports from the db and rebooted (several 
> times)
>
>
> On 12 April 2013 13:47, Roger Siddons <dizygotheca at ntlworld.com 
> <mailto:dizygotheca at ntlworld.com>> wrote:
>
>     On Fri, 12 Apr 2013 11:22:45 +0100, Roy Lofthouse
>     <lofty69 at gmail.com <mailto:lofty69 at gmail.com>> wrote:
>
>         I had an issue with not being able to watch some channels
>         (which appears to be due to changes on freeview), so I removed
>         all my channels >and transports and did a full scan.  I have
>         got all channels again but whenever I try and change channel
>         on my frontend I get the following >error:
>
>
>         "Error opening jump program file buffer"
>
>         and also see this in the backend logs:
>
>         "Wrong PMT; pmt->pn(8325) desired(8267)" - This is repeated
>         several times with the first number being slighly different.
>
>
>         Followed by a DVBRead error "Device EOF Detected"
>
>         any ideas?
>
>         Thanks
>
>
>     They moved the BBC & Dave muxes to make way for 4G phones.
>
>     Have you rebooted ? I had all sorts of errors from the EIT scanner
>     which disappeared after a reboot.
>
>     You could try deleting your old transports as well - the 794 MHz &
>     802 MHz ones are redundant now
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>
>
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> Deleting all the channels and doing a full re-scan should be OK. Likely issues are that you have picked up a wrong multiplex due to reception issues.
check that you have the correct muxes ie
mysql> select frequency,transportid,networkid from dtv_multiplex where 
sourceid = 1;
+-----------+-------------+-----------+
| frequency | transportid | networkid |
+-----------+-------------+-----------+
| 738000000 |       16520 |      9018 |
| 746000000 |       24640 |      9018 |
| 762000000 |       29697 |      9018 |
| 770000000 |       12294 |      9018 |
| 778000000 |        8203 |      9018 |
| 698000000 |       20544 |      9018 |
| 706000000 |        4168 |      9018 |
+-----------+-------------+-----------+
7 rows in set (0.00 sec)

Others have reported similar problems when there is more than one 
instance of a channel.
EIT only works if the TID & NID are set.

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