[mythtv-users] explain defaultinput field in capturecard table in mythconverg

[Karl Newman]

On Mon, May 12, 2014 at 8:17 AM, Michael T. Dean <mtdean at thirdcontact.com>wrote:

> On 05/12/2014 01:24 AM, Eyal Lebedinsky wrote:
>
>> My first query is: what is the exact semantics of this field? I notice
>> that in the past
>> it defaulted to DVBInput but it now defaults to Television, so I have a
>> mix of both.
>>
>
> When you configure a capture device with a single input, MythTV will
> always set the default input properly.  However, since kernel drivers have
> changed over time--in some (many) case(s) changing the input
> identifiers--this tends to happen when you add cards at different times
> (though it can happen when adding all cards at the same time if you
> misconfigure the cards--even if you think you undid the misconfiguration
> and reconfigured correctly).
>
> The best way to fix the problem is to use the "Delete all capture cards"
> (not "Delete all capture cards on <hostname>") portion of
> http://www.gossamer-threads.com/lists/mythtv/users/264034#264034 .  Doing
> so will have no impact on your Channels or Video Sources (just don't do the
> "Delete all video sources" portion), and takes only seconds.  (I can delete
> all my capture cards and reconfigure the six of them--spread across 2
> backend systems--in about 30 seconds.)
>

While it's true that this is a relatively painless procedure, it can be
less trivial if you use a channel change script and you have to remember
all the arguments to them for your different inputs. So, my recommendation
before you do this make a database backup (using mythconverg_backup.pl) and
take notes on your current capture card and input configuration.

Karl
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