[mythtv-users] Live TV tries to tune channel unavailable on that tuner...

[Steven Adeff]

On Thu, Nov 13, 2014 at 8:58 AM, Peter Bennett (cats22)
<cats22 at comcast.net> wrote:
> On 11/12/2014 04:37 PM, Steven Adeff wrote:
>> $ mythbackend --version
>> Please attach all output as a file in bug reports.
>> MythTV Version : v0.27.4-6-ge0b0027
>> MythTV Branch : fixes/0.27
>> Network Protocol : 77
>> Library API : 0.27.20141016-1
>> QT Version : 4.8.1
>> Options compiled in:
>>  linux profile use_hidesyms using_alsa using_oss using_pulse
>> using_pulseoutput using_backend using_bindings_perl
>> using_bindings_python using_bindings_php using_crystalhd using_dvb
>> using_firewire using_frontend using_hdhomerun using_ceton using_hdpvr
>> using_ivtv using_joystick_menu using_libcec using_libcrypto
>> using_libdns_sd using_libfftw3 using_libxml2 using_lirc using_mheg
>> using_opengl using_opengl_video using_qtwebkit using_qtscript
>> using_qtdbus using_sdl using_taglib using_v4l2 using_x11 using_xrandr
>> using_xv using_profiletype using_bindings_perl using_bindings_python
>> using_bindings_php using_mythtranscode using_opengl using_vaapi
>> using_vdpau using_ffmpeg_threads using_mheg using_libass using_libxml2
>>
>> The system has two HDPVR with a full channel listing available, and an
>> QAM HDHR with a limited channel listing available.
>> When both HDPVR are in use, and the user attempts to watch LiveTV, the
>> system flashes "Please Wait" then goes back to the menu with the
>> following in the backend log,
>>
>> Nov 12 13:28:05 MythCenter mythbackend: mythbackend[2641]: I
>> TVRecEvent tv_rec.cpp:1050 (HandleStateChange) TVRec[7]: Changing from
>> None to WatchingLiveTV
>> Nov 12 13:28:05 MythCenter mythbackend: mythbackend[2641]: E
>> TVRecEvent channelutil.cpp:1940 (GetChannelData) GetChannelData()
>> failed because it could not#012#011#011#011find channel number '52' in
>> DB for source '2'.
>> Nov 12 13:28:05 MythCenter mythbackend: mythbackend[2641]: E
>> TVRecEvent recorders/channelbase.cpp:221 (IsTunable) ChannelBase[7]:
>> IsTunable(MPEG2TS,52) Failed to find channel in DB on input '7'
>> Nov 12 13:28:05 MythCenter mythbackend: mythbackend[2641]: E
>> TVRecEvent channelutil.cpp:1940 (GetChannelData) GetChannelData()
>> failed because it could not#012#011#011#011find channel number '52' in
>> DB for source '2'.
>> Nov 12 13:28:05 MythCenter mythbackend: mythbackend[2641]: E
>> TVRecEvent recorders/channelbase.cpp:221 (IsTunable) ChannelBase[7]:
>> IsTunable(MPEG2TS,52) Failed to find channel in DB on input '7'
>> Nov 12 13:28:05 MythCenter mythbackend: mythbackend[2641]: E
>> TVRecEvent recorders/channelbase.cpp:171 (Init) ChannelBase[7]:
>> Setting start channel '52' failed, #012#011#011#011and we failed to
>> find any suitible channels on any input.
>> Nov 12 13:28:05 MythCenter mythbackend: mythbackend[2641]: I
>> TVRecEvent tv_rec.cpp:3603 (TuningCheckForHWChange) TVRec[7]: HW
>> Tuner: 7->7
>> Nov 12 13:28:05 MythCenter mythbackend: mythbackend[2641]: E
>> TVRecEvent channelutil.cpp:1940 (GetChannelData) GetChannelData()
>> failed because it could not#012#011#011#011find channel number '52' in
>> DB for source '2'.
>> Nov 12 13:28:05 MythCenter mythbackend: mythbackend[2641]: E
>> TVRecEvent recorders/dtvchannel.cpp:241 (SetChannelByString)
>> DTVChan[7](192.168.1.117-0): SetChannelByString(52): Unable to find
>> channel in database.
>> Nov 12 13:28:05 MythCenter mythbackend: mythbackend[2641]: E
>> TVRecEvent tv_rec.cpp:3793 (TuningFrequency) TVRec[7]: Failed to set
>> channel to 52. Reverting to kState_None
>> Nov 12 13:28:05 MythCenter mythbackend: mythbackend[2641]: I
>> TVRecEvent tv_rec.cpp:1050 (HandleStateChange) TVRec[7]: Changing from
>> WatchingLiveTV to None
>> Nov 12 13:32:13 MythCenter mythbackend: mythbackend[2641]: N Expire
>> autoexpire.cpp:264 (CalcParams) AutoExpire: CalcParams(): Max required
>> Free Space: 4.0 GB w/freq: 7 min
>>
>> When this first happened I changed the startchan number for the tuner
>> from 52 to a channel that is in the database for the source connected
>> to this tuner, but now it looks to have returned for some reason.
>> Is there something I've missed in my setup that is causing this to happen?
>>
>> thanks!
>>
> Mythtv keeps the last channel tuned by each frontend for live tv and
> when you switch to live tv it tries to tune that channel. Unfortunately
> if that channel is not working you are stuck, every time you try again
> it hangs there and you cannot change channel.
> I have solved this before by running this SQL:
>
> update settings set data = '3707'
> where value = 'DefaultChanid' ;
>
> Setting a good known channel (note that is the chanid not the channel
> number). This will set all frontends to that default channel. To set a
> single frontend you will need to add a hostname to the where clause.
>
> Peter

great. so basically, I have to run that before going in to live tv every time...


-- 
Steve
http://www.mythtv.org/wiki/User:Steveadeff
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