[mythtv-users] s2-3600 problems upgrading to Ubuntu trusty HWE

[Hika van den Hoven]

Hoi Kai,

Wednesday, February 11, 2015, 5:44:54 PM, you wrote:

> Am 11.02.2015 um 17:08 schrieb Hika van den Hoven:
>> Hoi Kai,
>> 
>> Wednesday, February 11, 2015, 4:35:27 PM, you wrote:
>> 
>>> Hello John,
>> 
>>> Am 11.02.2015 um 15:30 schrieb John Pilkington:
>>>> On 11/02/15 13:39, Kai T. Hillmann wrote:
>>>>> Hello,
>>>>>
>>>>> first of all i've been using mythtv for a long time now (+5 years) and i
>>>>> really appreciate this great piece of software and want to thank the
>>>>> developers a lot for their great work!
>>>>>
>>>>> Actually i've got some issues when upgrading from kernel 3.8 (ubuntu
>>>>> 12.04) to kernel 3.13 (newer HWE as 3.8 is deprecated) with my two dvb
>>>>> s2-3600 cards. Weird thing here is that tuning some channels which
>>>>> previously worked can not be tuned any longer with an error:
>>>>>
>>>>>
>>>>> Feb 11 13:46:26 hostname mythbackend: mythbackend[2929]: W TVRecEvent
>>>>> recorders/dvbsignalmonitor.cpp:97 (DVBSignalMonitor)
>>>>> DVBSigMon[1](/dev/dvb/adapter0/frontend0): Cannot count Uncorrected
>>>>> Blocks#012#011#011#011eno: Operation not supported (95)
>>>>>
>>>>>
>>>>> Even more strange is that tuning this channels with kaffeine does work.
>>>>> I'm currently on Ubuntu 12.04 (x64) with mythtv v0.27.4
>>>>> (2:0.27.4+fixes.20150116.3b43903-0ubuntu0mythbuntu1), any ideas?
>>>>>
>>>>> One dvb-s transponder which can not be tuned any longer with mythtv is:
>>>>>
>>>>> Satellit: ASTRA (1L)Orbitalposition: 19,2°
>>>>> OstFrequenz: 12.544 MHz
>>>>> Polarisation: horizontal Transponder: 107
>>>>> Symbolrate: 22.000 Ms/S
>>>>> Fehlerkorrektur (FEC): 5/6
>>>>>
>>>>> A while ago i've tested also installing a complete new version of
>>>>> mythbuntu 14.04.1 to ensure that this is not a problem with my older
>>>>> 12.04 install or any upgrading issue.
>>>>> But sadly this doesn't solve the problems - it remains the same there -
>>>>> tuning this transponder with kaffeine works without any problems -
>>>>> tuning with mythtv fails - so i'm not sure where to search the reasons.
>>>>>
>>>>> I hope that someone has a hint where to look to solve this issue.
>>>>
>>>> You might try issuing 'mythbackend --setverbose none,channel' (with the
>>>> backend already running) and see what the backend log says when you try
>>>> to tune the missing channel.  Since kaffeine works and myth doesn't it
>>>> seems likely that some of the stream parameters aren't set in the myth db.
>>>>
>>>> Afterwards, 'mythbackend --setverbose general'
>> 
>>> I tried this - result is here : http://pastebin.com/jh2by1aq but i'm
>>> actually not sure how to interpret the entries..
>> 
>>> I found out that the transport id, network id and service id are the
>>> same used in kaffeine.
>> 
>>>>
>>>> I don't run dvb-s; does the mythtvsetup 'channels' section have
>>>> something that allows you to rescan a single transponder?
>> 
>>> I'm not sure whether this can be done but as i also tried to set up a
>>> completely new system as mentioned (mythbuntu 14.04.1) with a completely
>>> new dvb-s channel scan, this doesn't seem to fix the problem.
>> 
>>> Any ideas?
>>>>
>>>> HTH
>>>>
>>>> John P
>>>>
>>>>
>> 
>> As I interpret the log, it tunes OK. So there is a problem later.
>> Since you have upgraded your kernel, so also the driver I suggest
>> looking there. Look if there are issues with this driver at
>> http://linuxtv.org and see if you can find another version maybe.

> As far as I know the driver shouldn't be the problem when kaffeine still
> works for all transponders with the new driver...

That's not automatically said. Maybe kaffeine is more easygoing or is
not using the exact same features?...
Anyhow the things that as I understand have changed are the kernel
and the driver. Maybe it is a bug in mythtv that has come up due to
changes in the driver?


Tot mails,
  Hika                            mailto:hikavdh at gmail.com

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