The solution was to delete and re-configure the video source in mythtv
backend setup.
I've had to do this with each major Ubuntu upgrade (e.g., 10 -> 11 -> 12
-> 14). The intervals between each upgrade were infrequent enough for me
to forget this detail each time...
dn
On 11/30/14 8:58 PM, David Newman wrote:
> running 2:0.27.4+fixes.20141130.6fdb2d1-0ubuntu0mythbuntu2 amd64
> Backend/frontend on the same box
> Ubuntu 14.04
> Happauge HD PVR
> Motorola DCX3200 STB
>
> Recording fails after an upgrade from Mythbuntu 25 -> 27. There are two
> symptoms:
>
> 1. The mythbackend.log has a 'Failed to find Channel' entries like
> these, in this case for a program on channel 1221:
>
> Nov 30 20:43:24 buster mythbackend: mythbackend[3424]: E TVRecEvent
> recorders/v4lchannel.cpp:375 (GetCurrentChannelNum)
> V4LChannel[1](/dev/video0): GetCurrentChannelNum(1221): Failed to find
> Channel
> Nov 30 20:43:24 buster mythbackend: mythbackend[3424]: E TVRecEvent
> recorders/v4lchannel.cpp:392 (Tune) Channel(/dev/video0)::Tune(1221):
> Error, failed to find channel.
> Nov 30 20:43:24 buster mythbackend: mythbackend[3424]: E TVRecEvent
> tv_rec.cpp:3793 (TuningFrequency) TVRec[1]: Failed to set channel to
> 1209. Reverting to kState_None
>
> 2. Under Media Library/Watch Recordings, each failed recording appears
> twice.
>
> This system uses the 6200ch utility to change channels. It worked under
> Mythbuntu 25 and previous versions, and it still works when run manually.
>
> Under Mythbackend setup, the channel change command is given as:
>
> /usr/local/bin/6200ch -n 1 -4
>
> with a space on the end of the command.
>
> Playback of existing recordings is OK.
>
> Thanks in advance for troubleshooting clues.
>
> dn
>
>
>
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