[mythtv-commits] Ticket #11427: LiveTV/Recording doesn't work with CBand LNBs from 0.25 onwards

[MythTV]

#11427: LiveTV/Recording doesn't work with CBand LNBs from 0.25 onwards
-------------------------------------+-------------------------------------
 Reporter:  nick.marshall@…          |           Type:  Bug Report -
   Status:  new                      |  General
Milestone:  unknown                  |       Priority:  minor
  Version:  0.26-fixes               |      Component:  MythTV - General
 Keywords:  cband, livetv,           |       Severity:  medium
  fail,myth                          |  Ticket locked:  0
-------------------------------------+-------------------------------------
 When using mythtv 0.25 or 0.26 if you follow through all of the steps in
 setting it up with a ku band LNB myth will work fine and all epg data will
 be populated.
 Works fine for mythtv 0.25/0.26.

 If you do the same thing with a cband lnb it will locate the channels and
 add them to the database as expected but when trying to watch tv or record
 tv it will be unable to.


 Recording and watching tv from a cband lnb does work in 0.24 however.

 The issue is nearly identical to the one here: http://www.mentby.com/dg-
 mailing-list/

 Cards tested on:
 hauppage nova-s plus, hauppage nexus-s


 OS used:
 Mythbuntu 12.04,
 Centos 6.3

 Issue also occurs on multiple different lnbs and satellites. Signal
 strength (90-99%)

 mythbackend -v siparser,eit,channel produces this:


 {{{
 2013-02-27 12:02:32.300751 I  DVBChan(1:/dev/dvb/adapter0/frontend0):
 Opening DVB channel
 2013-02-27 12:02:32.307593 I  ChannelBase(2): Input #2: 'DVBInput'
 schan(401) sourceid(1) ccid(2)
 2013-02-27 12:02:32.307647 I  ChannelBase(2): Current Input #2: 'DVBInput'
 2013-02-27 12:02:32.309835 I  DTVChan(/dev/dvb/adapter0/frontend0):
 SetChannelByString(401):
 2013-02-27 12:02:32.316999 I  DTVChan(/dev/dvb/adapter0/frontend0):
 SetChannelByString(401): failure
 2013-02-27 12:02:32.317066 I  ChannelBase(2): Looking for startchannel
 '401' on input 'DVBInput'
 2013-02-27 12:02:32.324487 I  ChannelBase(2): Found startchannel '401' on
 input 'DVBInput'
 2013-02-27 12:02:32.337698 I  Found 0 distinct programid authorities

 }}}

 and when it tries to get EIT data

 {{{
 2013-02-27 12:03:35.314224 I  EITScanner (1): StartActiveScan called with
 1 multiplexes
 2013-02-27 12:03:35.599338 I  TVRec(1): SetChannel(401) -- begin
 2013-02-27 12:03:35.601670 I  DVBChan(1:/dev/dvb/adapter0/frontend0):
 Opening DVB channel
 2013-02-27 12:03:35.601731 I  DTVChan(/dev/dvb/adapter0/frontend0):
 SetChannelByString(401):
 2013-02-27 12:03:35.609460 I  DTVChan(/dev/dvb/adapter0/frontend0):
 SetChannelByString(401): failure
 2013-02-27 12:03:35.609520 E  TVRec(1): Failed to set channel to 401.
 Reverting to kState_None
 2013-02-27 12:03:35.610040 I  TVRec(1): SetChannel(401) -- end
 2013-02-27 12:03:35.610086 I  EITScanner (1): Now looking for EIT data on
 multiplex of channel 401
 }}}

 And the frontend when trying to watch tv:

 {{{
 2013-02-27 12:06:04.507525 N  TV: Spawning LiveTV Recorder -- begin
 2013-02-27 12:06:04.561636 N  TV: Spawning LiveTV Recorder -- end
 2013-02-27 12:06:04.564137 E  GetEntryAt(-1) failed.
 2013-02-27 12:06:04.564199 E  It appears that your backend may be
 misconfigured.  Check your backend logs to determine whether your capture
 cards, lineups, channels, or storage configuration are reporting errors.
 This issue is commonly caused by failing to complete all setup steps
 properly.  You may wish to review the documentation for mythtv-setup.
 2013-02-27 12:06:04.581668 E  EntryToProgram(0 at Thu Jan 1 12:00:00 1970)
 failed to get pginfo
 2013-02-27 12:06:04.581755 E  TV: HandleStateChange(): LiveTV not
 successfully started
 2013-02-27 12:06:04.584038 E  TV: LiveTV not successfully started
 2013-02-27 12:06:04.637334 I  TV: Main UI disabled.

 }}}

 Backend from the same time:

 {{{
 2013-02-27 12:06:04.513256 I [2073/2083] TVRecEvent tv_rec.cpp:1030
 (HandleStateChange) - TVRec(1): Changing from None to WatchingLiveTV
 2013-02-27 12:06:04.539601 I [2073/2083] TVRecEvent tv_rec.cpp:3503
 (TuningCheckForHWChange) - TVRec(1): HW Tuner: 1->1
 2013-02-27 12:06:04.557845 E [2073/2083] TVRecEvent tv_rec.cpp:3689
 (TuningFrequency) - TVRec(1): Failed to set channel to 401. Reverting to
 kState_None
 2013-02-27 12:06:04.557977 I [2073/2083] TVRecEvent tv_rec.cpp:1030
 (HandleStateChange) - TVRec(1): Changing from WatchingLiveTV to None
 2013-02-27 12:08:34.658128 E [2073/2083] TVRecEvent tv_rec.cpp:3689
 (TuningFrequency) - TVRec(1): Failed to set channel to 401. Reverting to
 kState_None
 }}}


 Looks like the frontend failures are due to not being able to tune to the
 channel after running the mythtv-setup.

 note- all of this works fine for 0.24 just the newer versions don't work.

 Also in New Zealand if that's any use.

-- 
Ticket URL: <http://code.mythtv.org/trac/ticket/11427>
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