[mythtv-users] dtvsignal shows strong - but mythbackend can't tuneHD3000

Fri Mar 4 22:45:36 UTC 2005

Double check you're using the correct frequency table (In the mythsetup
program).  Also check your channels and the frequencies in the channel
editor to make sure they are correct.  Everything looks like it's
working fine except you're not tuning to the right channel.

--Brandon

On Fri, Mar 04, 2005 at 03:07:01PM -0500, john roberts wrote:
> 
> Anyone have any ideas on this?
> 
> I've built 4 other mythtv boxes with HD3000's cards and I've never seen this.
> 
> I'm using the 1.6 drivers from pcHDTV.
> 
> Any ideas?  Or should I try the DVB drivers/etc?
> 
> -John
> 
> ----- Original Message -----
> From: "john roberts" <homepagez at lycos.com>
> To: mythtv-users at mythtv.org
> Subject: [mythtv-users] dtvsignal shows strong - but mythbackend can't tuneHD3000
> Date: Thu, 03 Mar 2005 17:39:54 -0500
> 
> > 
> > 
> > Can someone help?  I've got a buddy who is setting up his HD3000 card in his 
> > mythbackend.  The backend doesn't seem to be able to tune correctly or 
> > something.  Since the backend is unable to tune - LiveTV goes blank and then 
> > returns to the main screen.
> > 
> > BTW - I'm also able to capture ATSC content using getatsc and then play it 
> > with mplayer without a problem.
> > 
> > 
> > dtvsignal shows a strong signal:
> > 
> > htpc mythgame # /usr/local/bin/pcHDTV/dtvsignal /dev/dtv0 39
> > main: argc 3 argv[1] /dev/dtv0
> > channel 39
> > freq*16 = 9940
> > main: ioctl 1 rtn 0
> > main: ioctl 2 rtn 0
> > dtvsignal ver 0.1 - by Jack Kelliher (c) 2002
> > channel = 39 freq*16 = 9940
> >   30db       0%         25%         50%         75%        100%
> > Signal:     |     .     :     .     |     ._____:_____._____|
> > Signal: 089 $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
> > htpc mythgame #
> > 
> > 
> > But the backend - shows:
> > 
> > 
> > htpc mythgame # mythbackend --verbose channel
> > 2005-03-03 17:35:20.963 New DB connection, total: 1
> > Starting up as the master server.
> > 2005-03-03 17:35:20.972 New DB connection, total: 2
> > 2005-03-03 17:35:20.976 Channel(/dev/dtv0):SetFormat(): Probed input: 0, name 
> > = Television
> > 2005-03-03 17:35:20.976 Channel(/dev/dtv0):SetFormat(): Probed input: 1, name 
> > = Composite1
> > 2005-03-03 17:35:20.976 Channel(/dev/dtv0):SetFormat(): Probed input: 2, name 
> > = S-Video
> > 2005-03-03 17:35:20.977 Channel(/dev/dtv0)::SwitchToInput(in 0)
> > 2005-03-03 17:35:20.977 Channel(/dev/dtv0)::SwitchToInput() setting video 
> > mode to ATSC
> > 2005-03-03 17:35:20.978 Channel(/dev/dtv0)::SwitchToInput(in 0): Error -1 
> > while setting video mode (v2), "Invalid argument", trying v4l v1
> > 2005-03-03 17:35:20.978 Channel(/dev/dtv0)::SwitchToInput() setting video 
> > mode to ATSC
> > 2005-03-03 17:35:20.978 Channel(/dev/dtv0)::SwitchToInput(in 0): Setting 
> > video mode with v4l version 1 worked
> > 2005-03-03 17:35:20.979 Channel(/dev/dtv0):SetFormat(): Probed input: 0, name 
> > = Television
> > 2005-03-03 17:35:20.979 Channel(/dev/dtv0):SetFormat(): Probed input: 1, name 
> > = Composite1
> > 2005-03-03 17:35:20.979 Channel(/dev/dtv0):SetFormat(): Probed input: 2, name 
> > = S-Video
> > 2005-03-03 17:35:20.980 New DB connection, total: 3
> > 2005-03-03 17:35:20.984 Channel(/dev/dtv0)::TuneTo(39-1): 
> > curList[38].freq(313250)
> > 2005-03-03 17:35:20.984 Channel(/dev/dtv0)::TuneToFrequency(5012)
> > 2005-03-03 17:35:20.988 Channel(/dev/dtv0)::CheckSignal(5000, 65, 0): 
> > usingv4l2(1)
> > 2005-03-03 17:35:21.045 Channel(7)::signalStrengthATSC_v4l2(): signal 
> > strength: 22
> > 2005-03-03 17:35:21.603 Channel(7)::signalStrengthATSC_v4l2(): signal 
> > strength: 22
> > 2005-03-03 17:35:22.161 Channel(7)::signalStrengthATSC_v4l2(): signal 
> > strength: 22
> > 2005-03-03 17:35:22.719 Channel(7)::signalStrengthATSC_v4l2(): signal 
> > strength: 22
> > 2005-03-03 17:35:23.277 Channel(7)::signalStrengthATSC_v4l2(): signal 
> > strength: 22
> > 2005-03-03 17:35:23.834 Channel(7)::signalStrengthATSC_v4l2(): signal 
> > strength: 22
> > 2005-03-03 17:35:24.392 Channel(7)::signalStrengthATSC_v4l2(): signal 
> > strength: 22
> > 2005-03-03 17:35:24.950 Channel(7)::signalStrengthATSC_v4l2(): signal 
> > strength: 22
> > 2005-03-03 17:35:25.508 Channel(7)::signalStrengthATSC_v4l2(): signal 
> > strength: 22
> > 2005-03-03 17:35:26.066 Channel(7)::signalStrengthATSC_v4l2(): signal 
> > strength: 22
> > 2005-03-03 17:35:26.624 Channel(7)::signalStrengthATSC_v4l2(): signal 
> > strength: 22
> > 2005-03-03 17:35:26.624 Channel(/dev/dtv0)::CheckSignal(): Maximum signal 
> > strength detected: 22% after 5500 msec wait
> > 
> > Setup:
> > 
> > - P4 HT 3.2G
> > - Gentoo
> > - 2.6.9 kernel
> > - MythTV CVS from 3/3/05
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