[mythtv-users] HD3000 recording problem in Mythtv- signalStrengthATSC_v4l2(), error: Invalid argument

Brad Fuller bradallenfuller at yahoo.com
Tue Nov 29 23:58:41 EST 2005


Daniel Kristjansson wrote:

>On Tue, 2005-11-29 at 13:22 -0800, Brad Fuller wrote:
>  
>
>>Mercury Morris wrote:
>>    
>>
>>>So, here's a question:  Did you complete a successful scan of 
>>>available channels during mythtv-setup?  
>>>      
>>>
>>It's greyed out. Is it grayed out because I chose "no" at the beginning 
>>of mythtv. I just didn't want it to change anything since I didn't want 
>>what I had corrupted. Would it?
>>    
>>
>If you are using 0.18.1, it is greyed out because that version didn't
>support scanning for V4L sources of any kind. SVN supports scanning
>Analog and Digital V4L sources, as well as DVB sources.
>
>  
>
>>>And another question:  Did you choose to define the HD3000 card as a 
>>>DVB card (part of Input Connections)?
>>>      
>>>
>>There is no "DVB" setting in Input Connections. My Input Connections 
>>assigns the Capture Device (card) and Input to the Video Source (which 
>>is "terrestrial" as cited above)
>>    
>>
>What he means is, did you define the card as a "pcHDTV HD-2000/3000" 
>card or "DVB" card. The former only works with the Digial V4L pcHDTV
>drivers, and the latter only works with the DVB DTV drivers. In SVN
>the former has been renamed to specify that it only applies with the
>V4L drivers. When 0.18 was being developed the HD-3000 DVB drivers
>were new and still a bit broken. Also the digital V4L pcHDTV support
>in 0.18.1 does not support the pcHDTV 2.0 drivers during setup, only
>1.4 and earlier; you need SVN to setup using the digital pcHDTV 2.0
>V4L drivers.
>
>  
>
>>>Under Channel Editor (part of mythtv-setup) you can scan for channels, 
>>>actually you must scan for them or else MythTV won't work.
>>>      
>>>
>>hmmm... I guess I have to say YES to the question:
>>"Would you like to clear all program data and channel settings..."
>>at the beginning. Shessh.. I don't want to mess up what is alread there. 
>>Will it?
>>    
>>
>This will clear all the channels. In SVN, you can delete the channels on
>one source as part of the scan. But in 0.18 you must either delete each
>channel individually (hi-light the channel in the Channel Editor, then
>press M, then select "Delete" from the menu), or you can delete the
>channels using the mysql command line tool if you have a basic command
>of SQL, or delete all channels on all sources during startup.
>
>If you are using a pcHDTV card I recommend you upgrade to SVN
>revision 7674. It will make the setup considerably easier, while
>avoiding the LiveTV problems in current SVN.
>
>If you have the DVB drivers installed create a DVB card, and make sure
>you click all the buttons in the card setup so everything is initialized
>properly. Also make sure that you do not assign a source that you have
>ever added V4L channels to, to a DVB card input. That is just asking for
>trouble as V4L drivers tune to the visual carrier of a channel and DVB
>drivers tune to the center frequency of a channel. Also if you change
>the frequency table used by a digital source, make sure you delete all
>the channels on that card using the "treatment of existing channels"
>tab in the scanner.
>
>A sizable part of the 0.19 release will be improvements in the setup of
>and usability of digital cards like the pcHDTV HD-3000.
>
>The other part of the release is improved LiveTV functionality which
>we are working the kinks out of at the moment.
>
>  
>
Much obliged Daniel!
As I mentioned in a very recent msg, HD3000 card is limping a bit in the 
LiveTV on some channels. I still don't know why I have channels above 82 
in my listing. I understand all of the ones that have a "_#" appended 
because that is from the Zap2It download. The channels above 82 don't 
show up in the Zap2It list, so I don' t know how Myth got those. I 
suppose from physically scanning the card for channels. I got to figure 
out how to resolve to two so it is useful.

Thanks for the tips on deleting, that might come in handy with this.
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