[mythtv-users] Need 2 sources with only 1 digital Schedules Direct lineup to chose from.

[Michael T. Dean]

On 10/08/2007 10:43 AM, Daniel Arfsten wrote:
> I have a firewire enabled SA 3250HD STB that I can record 8 different 
> channels when using firewire_tester and test-mpeg2. I would like to add this 
> as an Input for mythtv but I am having a HELL of a time getting it to work. 
> First I tried doing the cached support from the mythtv wiki where you use 1 
> lineup but change it in between selecting inputs and setting sources. I have 
> a s-video source that can get all channels, then I added the additional 8 
> channels for the firewire capturing but mythtv-setup refuses to add them. I 
> have tried unconnecting the source firewire within the input setup, then 
> running mythfilldatabase with either --remove-new-channels and or 
> --update-channels-only (or something like this) It just doesn't work!

With 0.20.2, there was a bug that prevented addition of firewire
channels from occuring.  There was a workaround (that only worked if you
have some non-firewire capture card, too), but at this point, your best
bet is to upgrade to current 0.20-fixes.  (I'm assuming that you're not
using 0.20-fixes from your description, but if you are we can do more
diagnosis (especially with revision number).)

>  Within 
> mythtv-setup, under the firewire input, their is no starting channel so 
> mythtv always says that this input has no channels associated to the 
> grabber! Then I realized that I wouldn't be able to have the STB connected 
> to 2 different inputs and have recording go at the same time anyway because 
> the STB only has 1 output. THen I decided to scrap HD capture in favor of 
> being able to record ALL channels over firewire, this is awesome for HBO etc 
> etc.
>
> Now I am thinking of using the firewire card with the other STB that's in 
> the house in another location and setup a frontend/backend slave. It would 
> have pvr-500 for 2 analog inputs and hten the firewire input. The problem is 
> that my zip code only provides me to use 1 CableDigital lineup and that's 
> it. So I already have that chosen for my s-video connection of my pvr-350 so 
> I can record ALL channels. How do I have 1 digital lineup and provide a 
> digital source for my s-video connection  with all channels, but then have 
> another source that only provides 8 new HD channels for the firewire 
> input????

That is what the caching support section of the HOWTO is about.  It's
more properly, "Using a single Schedules Direct lineup with multiple
different video sources having different channels available on each,"
but Robert's choice of using, "Caching support," (which is simply the
way we've made use of a single lineup with multiple video sources more
efficient) is much easier to say/type/remember.

Once you have a version of MythTV that can properly add new firewire
channels, the wiki info will work much better for you. 
http://mythtv.org/docs/mythtv-HOWTO-24.html#ss24.4

>  Also, I have to use an external channel changing script with 
> serial IR blasting because firewire channel changing isn't working for 
> whatever reason, how can I tell firewire input to NOT try to change the 
> channels and possible screw stuff up?
>
> Is this possible or do I need to buy another subscription from SD to get 
> this work?
> Even if I do pay for another account, how do I get the listing retreived 
> from the lineup for firewire, since it can't scan.
>
> I am using mythtv 20.2 from Feisty repo's. I am thinking about going to 
> Gutsy and hten mythbuntu daily builds repo if necccessary. Any thoughts.

Assuming that's daily builds of SVN 0.20-fixes, sounds like a not-bad
idea.  I don't use Ubuntu, though, so I don't know if there are other
preferred repos for production boxes or whatever.  But, getting a more
up-to-date version of 0.20-fixes seems to be what you need.

Mike