[mythtv-users] Multiple Lineups / Live TV Channel Change

Michael T. Dean mtdean at thirdcontact.com
Thu Nov 3 20:40:18 UTC 2011

On 11/03/2011 04:18 PM, Raymond Wagner wrote:
> On 11/3/2011 14:51, Scott and Nicole Harris wrote:
>>> No. When you are recording, MythTV simply picks the first tuner out of
>>> the list capable of recording the channel you scheduled. Thus, the
>>> ideal configuration for multirec orders all the tuners sequentially in
>>> the database, so that MythTV automatically tries all in-use physical
>>> tuners, before resorting to a fresh tuner. The problem is that LiveTV
>>> will follow the same order, choosing a virtual tuner on an in-use
>>> physical tuner, locked to a specific multiplex.
>>> The work around is that you configure your virtual tuners sequentially,
>>> so multirec works as intended. Then you add in one additional virtual
>>> tuner each, and configure LiveTV to avoid conflicts, causing it to pull
>>> sequentially from the bottom of the list down. Recordings and LiveTV
>>> thus both get the ordering that is best suited for their purposes. The
>>> issue becomes that if all your tuners are tied up with LiveTV, scheduled
>>> recordings may fail.
>> Yes, I got all that.  I was apparently a little confused with the "change virtual tuners from 2 to 4 as you connect them".  So you're saying I could have simply changed Max Recordings to 4 on each capture card as I added it? After defining all my capture cards with 4 tuners, THEN gone in and connected them in the order I want them used for recording?

In your case--where you don't want the Live TV hack--this is what you 
should do.

> No.  You add your tuner cards with however many virtual tuners for
> simultaneous recording you want, and go all the way through all normal
> configuration and set up in mythtv-setup for them.  Then you go back and
> add one additional virtual tuner each.  I only said to use four, because
> you are limited to five.  You could use two virtual tuners, and then
> afterwards add a third on each for livetv.  You could use three virtual
> tuners, and then afterwards add a fourth on each for livetv.

But only for those users using the Live TV hack


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