[mythtv-users] Problem Faking Channel Change Command

Philip Murnane pmurnane at cableone.net
Wed Jan 24 16:49:13 UTC 2007

Hi Everyone:

Running Mythtv-0.20-fixes from around 2007-01-15 on Ubuntu 6.06 via
WinTV PVR-250, and having a problem faking the external channel change
command (mythtv-setup->Input connections->/dev/video0

I have two video sources set up, Cable-Analog for channels 2-98, and
cable-box for channels higher than 98.  Cable-Analog is connected to the
tuner of the PVR-250 and Cable-Box is connected to the S-Video input.  I
know I can't use them both at the same time, and when watching TV via
mythfrontend, both work fine.

Scheduled recordings off Cable-Analog work fine, but in order to
schedule recordings off the cable box while waiting for my IR blaster to
arrive, I've put /bin/true in the External channel change command for
the S-Video->Cable-Box input connection and am manually selecting the
channel on the cable box.

When the time for recording starts, I get an "Error: Failed to set
channel..."  Any thoughts?  /bin/true exists and is -rwxr-xr-x

2007-01-24 09:36:20.354 MainServer::HandleAnnounce Monitor
2007-01-24 09:36:20.361 adding: cyclops as a client (events: 0)
2007-01-24 09:36:20.369 MainServer::HandleAnnounce Monitor
2007-01-24 09:36:20.376 adding: cyclops as a client (events: 1)
2007-01-24 09:40:01.581 TVRec(1): Changing from None to RecordingOnly
2007-01-24 09:40:01.601 TVRec(1): HW Tuner: 1->1
2007-01-24 09:40:02.003 Channel::GetCurrentChannelNum(312): Failed to
find Channel '312'
2007-01-24 09:40:02.006 Channel(/dev/video0)::TuneTo(312): Error, failed
to find channel.
2007-01-24 09:40:02.010 TVRec(1) Error: Failed to set channel to 312.
Reverting to kState_None
2007-01-24 09:40:02.014 TVRec(1): Changing from RecordingOnly to None
2007-01-24 09:40:02.063 Canceled recording (Recorder Failed): testing
(Manual Record) "Wed Jan 24 09:45:00 2007": channel 1312 on cardid 1,
sourceid 1
2007-01-24 09:40:05.126 Error deleting
'/media/hda3/mythtv//1312_20070124094000.mpg': No such file or directory
2007-01-24 09:40:11.147 Reschedule requested for id 0.
2007-01-24 09:40:11.281 Scheduled 68 items in 0.1 = 0.01 match + 0.13

Thanks in Advance,

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