[mythtv-users] Request for help making live TV useable

[Josu Lazkano]

Hello, I am getting similar problem with LiveTV, I have a Debian
Squeeze FE/BE with one DVB-S2 and two DVB-T cards on a Nvidia ION
machine. I have debian-multimedia estable repository version
(0.24+fixes20110121-0.0).

My big LiveTV problems are thoose:

1. When I change channels I get "Error opening jump program file
buffer".This is frontend log:

2011-04-17 10:54:48.187 AO: Pause 1
2011-04-17 10:54:48.193 AO: OutputAudioLoop: audio paused
2011-04-17 10:54:50.899
RingBuf(/mnt/myth/livetv/31410_20110417105448.mpg) Error: OpenFile():
File too small (0B).
2011-04-17 10:54:50.900 Player(1), Error: JumpToProgram's OpenFile
failed (card type: DVB).
2011-04-17 10:54:50.900
LiveTVChain has 9 entries
   DUMMY: 31400 (10:53:37 to 10:53:38)
     DVB: 31400 (10:53:38 to 10:53:55) discontinuous
     DVB: 31410 (10:53:55 to 10:54:06) discontinuous
   DUMMY: 29656 (10:54:06 to 10:54:19) discontinuous
     DVB: 29656 (10:54:19 to 10:54:29) discontinuous
   DUMMY: 31409 (10:54:29 to 10:54:33) discontinuous
     DVB: 31409 (10:54:33 to 10:54:38) discontinuous
     DVB: 31400 (10:54:38 to 10:54:48) discontinuous
*    DVB: 31410 (10:54:48 to 11:30:00) discontinuous

2011-04-17 10:54:50.900 Player(1), Error: Unknown recorder error,
exiting decoder
2011-04-17 10:54:50.987 msg: On known multiplex...
2011-04-17 10:54:50.991 TV: Attempting to change from WatchingLiveTV to None
2011-04-17 10:54:51.163 VDPAU Painter: Clearing VDPAU painter cache.
2011-04-17 10:54:51.298 MythPainter: 8 images not yet de-allocated.
2011-04-17 10:54:51.418 AO: Killing AudioOutputDSP
2011-04-17 10:54:51.443 AO: OutputAudioLoop: Stop Event
2011-04-17 10:54:51.444 AO: kickoffOutputAudioLoop exiting
2011-04-17 10:54:51.512 TV: Changing from WatchingLiveTV to None
2011-04-17 10:54:51.521 ScreenSaverX11Private: DPMS Reactivated 1
2011-04-17 10:54:51.522 TV: Attempting to change from None to None
2011-04-17 10:54:51.543 TV: Attempting to change from None to WatchingLiveTV
2011-04-17 10:54:51.544 MythCoreContext: Connecting to backend server:
192.168.0.5:6543 (try 1 of 1)
2011-04-17 10:54:51.545 Using protocol version 63
2011-04-17 10:54:51.563 Spawning LiveTV Recorder -- begin
2011-04-17 10:54:51.622 Spawning LiveTV Recorder -- end
2011-04-17 10:54:51.639 We have a
playbackURL(/mnt/myth/livetv/31409_20110417105451.mpg) &
cardtype(DUMMY)
2011-04-17 10:54:51.641 We have a RingBuffer
2011-04-17 10:54:51.643 playCtx, Error: Attempting to setup a player,
but it already exists.
2011-04-17 10:54:51.643 TV Error: LiveTV not successfully started

And this is the backend log:

2011-04-17 10:54:48.412 TVRec(1): HW Tuner: 1->1
2011-04-17 10:54:48.442 DVBChan(1:/dev/dvb/adapter0/frontend0)
Warning: Unsupported modulation parameter.
2011-04-17 10:54:48.452 Finished recording Nos gusta el cine  : channel 31400
2011-04-17 10:54:48.457 LoadFromScheduler(): Error, called from backend.
2011-04-17 10:54:48.468 AutoExpire: CalcParams(): Max required Free
Space: 3.0 GB w/freq: 14 min
2011-04-17 10:54:48.488 Finished recording Nos gusta el cine  : channel 31400
2011-04-17 10:54:48.709 TVRec(1): RingBufferChanged()
2011-04-17 10:54:48.715 Finished recording Nos gusta el cine  : channel 31400
2011-04-17 10:54:49.103 MainServer::ANN Monitor
2011-04-17 10:54:49.104 adding: htpc as a client (events: 0)
2011-04-17 10:54:49.105 MainServer::ANN Monitor
2011-04-17 10:54:49.106 adding: htpc as a client (events: 1)
2011-04-17 10:54:51.447 TVRec(1): Changing from WatchingLiveTV to None
2011-04-17 10:54:51.508 Finished recording Pequeños invasores  : channel 31410
2011-04-17 10:54:51.545 MainServer::ANN Playback
2011-04-17 10:54:51.546 adding: htpc as a client (events: 0)
2011-04-17 10:54:51.568 TVRec(1): Changing from None to WatchingLiveTV
2011-04-17 10:54:51.578 TVRec(1): HW Tuner: 1->1
2011-04-17 10:54:51.584 LoadFromScheduler(): Error, called from backend.
2011-04-17 10:54:51.594 AutoExpire: CalcParams(): Max required Free
Space: 3.0 GB w/freq: 14 min
2011-04-17 10:54:51.626 DVBChan(1:/dev/dvb/adapter0/frontend0)
Warning: Unsupported modulation parameter.
2011-04-17 10:54:51.652 TVRec(1): Changing from WatchingLiveTV to None
2011-04-17 10:54:51.676 Finished recording Horizontes  : channel 31409


2. When I push ChannelUp key it always starts on the first channel on
the current input. For example: If I am watching the channel 5, the I
press ChannelUp key and it goes to channel 2, when I want to go to
channel 6.

The second problem is not really important, I can go to GUIDE and up
channels there. But the first problem is very annoying, I hope it will
solve fast. Tell me if you need more debug info.

I am not expert on code and good english writing, is it possible to
open a ticket with this? I will help as much as I can, is very
important for me.

Thanks and best regards.

-- 
Josu Lazkano