[mythtv-users] Scheduling recordings from a satellite box

[Kevin Kuphal]

JCA wrote:
>    I have my mythv PC connected to a satellite box. The satellite box
> outputs its signal on channel 3. I have configured mythtv accordingly,
> and I can watch live TV on my mythtv  PC without any problems. The
> issue is, how to schedule recordings?
>
>   I use the Manage Recordings -> Schedule Recordings -> Program Guide
> menu in mythfrontend for this. Sure enough, I can locate the channel
> that I want (295, in this case) and schedule a recording. When
> mythbackend attempts to start recording it prints out the following:
>
> 2006-07-20 13:00:02.394 TVRec(1): Changing from None to RecordingOnly
> 2006-07-20 13:00:02.422 Channel::GetCurrentChannelNum(295): Failed to
> find Channel '295'
> 2006-07-20 13:00:02.422 Channel(/dev/v4l/video0)::TuneTo(295): Error,
> failed to find channel.
> 2006-07-20 13:00:02.422 TVRec(1) Error: Failed to set channel to 295.
> Reverting to kState_None
> 2006-07-20 13:00:02.422 TVRec(1): Changing from RecordingOnly to None
> 2006-07-20 13:00:02.425 Finished recording Dragon Tales "Forest of
> Darkness": channel 1295
> 2006-07-20 13:00:02.444 Started recording: Dragon Tales "Forest of
> Darkness": channel 1295 on cardid 1, sourceid 1
> 2006-07-20 13:00:03.446 Reschedule requested for id 0.
> 2006-07-20 13:00:03.457 Scheduled 3 items in 0.0 = 0.00 match + 0.01 place
>
> Nothing gets recorded. I guess this was to be expected, for the video
> signal I am getting comes from the satellite box, tuned on channel 3.
>
>   Does this imply that, when using such a setup, there is no way to
> schedule recordings using the Program Guide menu? Well, I guess one
> could choose to record from channel 3 at the Program Guide menu, but
> that's kind of crude, and it would not necessarily work very well,
> because different channels do not run in lockstep - especially pay
> ones.
>
>   Is there a way around this? I am aware of approaches to get mythtv
> to change channels on the satellite box, but that's not the issue I am
> addressing here - I believe that would not help me anyway.
>   
You need to set up an external channel changing script that changes the 
channel on the Satellite box either using a direct serial connection or 
an IR blaster or some kind of device like that.  This will keep the Sat 
channel in sync with the channel that Myth wants it to be on for a 
recording.  Your logs indicate that Myth is trying to tune your capture 
hardware to channel 295 which is incorrect as it needs to remain on 
channel 3.  Configuring an external channel changing script and putting 
it into mythtv-setup will fix that.

Kevin