[mythtv-users] Failed to change channel error

[Harry Devine]

I just re-did my capture cards after I upgraded to 0.24 and I noticed 
that none of my HD-PVR recordings were happening.  So I just setup a 
test recording, and captured the following in my myth-backend log:

2010-12-24 12:00:02.934 TVRec(1): Changing from None to RecordingOnly
2010-12-24 12:00:02.938 TVRec(1): HW Tuner: 1->1
2010-12-24 12:00:03.046 Channel(/dev/video0) Error: 
GetCurrentChannelNum(231): Failed to find Channel
2010-12-24 12:00:03.047 Channel(/dev/video0)::TuneTo(231): Error, failed 
to find channel.
2010-12-24 12:00:03.053 AutoExpire: CalcParams(): Max required Free 
Space: 3.0 GB w/freq: 15 min
2010-12-24 12:00:03.058 Started recording: "Action News": channel 1231 
on cardid 1, sourceid 1
2010-12-24 12:00:03.062 scheduler: Started recording: "Action News": 
channel 1231 on cardid 1, sourceid 1
2010-12-24 12:00:03.081 SignalMonitor: channel change failed
2010-12-24 12:00:03.131 SignalMonitor: channel change failed
2010-12-24 12:00:03.182 SignalMonitor: channel change failed
2010-12-24 12:00:03.233 SignalMonitor: channel change failed
2010-12-24 12:00:03.283 SignalMonitor: channel change failed
2010-12-24 12:00:03.334 SignalMonitor: channel change failed
2010-12-24 12:00:03.384 SignalMonitor: channel change failed
2010-12-24 12:00:03.435 SignalMonitor: channel change failed
2010-12-24 12:00:03.485 SignalMonitor: channel change failed
2010-12-24 12:00:03.536 SignalMonitor: channel change failed
2010-12-24 12:00:03.586 SignalMonitor: channel change failed
2010-12-24 12:00:03.637 SignalMonitor: channel change failed
2010-12-24 12:00:03.687 SignalMonitor: channel change failed
2010-12-24 12:00:03.738 SignalMonitor: channel change failed
2010-12-24 12:00:03.788 SignalMonitor: channel change failed
2010-12-24 12:00:03.839 SignalMonitor: channel change failed
2010-12-24 12:00:03.889 SignalMonitor: channel change failed
2010-12-24 12:00:03.940 SignalMonitor: channel change failed
2010-12-24 12:00:03.990 SignalMonitor: channel change failed
2010-12-24 12:00:04.032 Updating status for "Action News" on cardid 1 
(Tuning => Recorder Failed)
2010-12-24 12:00:04.068 Reschedule requested for id 0.
2010-12-24 12:00:04.096 Scheduled 1 items in 0.0 = 0.00 match + 0.03 place
2010-12-24 12:00:04.101 scheduler: Scheduled items: Scheduled 1 items in 
0.0 = 0.00 match + 0.03 place

I can "cat" my HD-PVR successfully, so I know it works OK.  And I use 
firewire to change channels which has always worked (unless something 
changed there that I'm not sure of yet).

Any ideas on what could be happening?

Thanks
Harry