[mythtv-users] Recording noise instead of scheduled show?

[John]

Thanks,

I have my channel change script run the ivtv-tune command.  I'll
change the input away fom the RF later in life.


John

On Jun 3, 2006, at 2:04 AM, Michael T. Dean wrote:

> On 06/02/2006 11:12 PM, John wrote:
>> I have a PVR-150 connected to my DirectTV STB.  I have set the
>> channel change script to
>> /bin/true and can see in the log that this is OK.  I have the preset
>> channel set to 3 but
>> my tuner never gets "set" and I end up recording noise instead of the
>> signal.
>>
>> I have the real DirectTV channel change script for the STB but I'm
>> just taking one step
>> at a time.
>>
>> Here is the relevant area of my log:
>>
>> 2006-06-02 23:00:03.150 TVRec(1): Changing from None to RecordingOnly
>> 2006-06-02 23:00:04.253 ret_pid(5850) child(5850) status(0x0)
>> 2006-06-02 23:00:04.258 External Tuning program exited with no error
>> 2006-06-02 23:00:04.309 Started recording: Stargate SG-1 "The Powers
>> That Be": channel 1244 o
>> n cardid 1, sourceid 1
>> 2006-06-02 23:00:04.471 Can't enable VBI recording (2)
>> vbi: Invalid argument
>> 2006-06-02 23:00:05.428 Reschedule requested for id 0.
>>
>> What is the VBI thing?
>
> Vertical Blanking Interval (basically, where data is carried in the
> video signal--data such as closed captions, teletext, wide screen
> signalling, etc.)  It's completely unrelated.
>
> There have been reports that the
>
> Preset tuner to channel
> Leave this blank unless you have an external tuner that is  
> connected to
> the tuner input of your card. If so, you will need to specify the  
> preset
> channel for the signal (normally 3 or 4).
>
> setting doesn't work anymore, but I haven't had the time (and, in  
> truth,
> not much motivation) to go in and find out why since I don't use it.
> See http://www.gossamer-threads.com/lists/mythtv/users/188083#188083 ,
> http://www.gossamer-threads.com/lists/mythtv/dev/191506#191506 ,
> http://www.gossamer-threads.com/lists/mythtv/users/193785#193785
>
> If that is the case, your options include:
>     a) Switch the STB to output S-Video or Composite.  This is the
> preferred option because both have noticeably better quality than
> RF-modulated output.
>     b) Use a script to set the appropriate starting channel upon  
> bootup
> using a command-line tool like ivtv-tune.
>
> Mike
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