[mythtv-users] the right way to do tuner priority?

[Hika van den Hoven]

Hoi Brian,

Monday, September 29, 2014, 3:44:57 PM, you wrote:

> I know there has been much controversy in the past about how to properly
> assign tuner priorities and that historically, the only proper way to
> influence tuner scheduling choice was simply to add the tuners in the
> order that you want MythTV to use them.  Additionally to that, I recall
> that there was a way that many people were trying to set tuner
> priorities but the reality is that it was not doing what they thought it
> was doing.

> But I also recall some discussion recently about how tuner priority was
> fixed so that one could actually set priorities on tuners and it would
> have the expected/desired effect.  I don't recall the details however.

> What I am trying to fix is that in a given (2h1m) timeslot this evening,
> I have a recording occurring on a digital (clearqam) tuner on a given
> sub-channel on a given multiplex (channel "102", subchannel "936") and
> then 30 minutes into that recording, there is another show on the same
> digtial channel, different subchannel that I want to record.  But rather
> than using that same digital tuner, the scheduler is scheduling it to
> record on a completely different, analog tuner.

> I.e.:

> 2014-09-29 00:00:03.853011 I  Dancing With the Stars        
> 102-936 WWTI  29 20:00-22:01  2  1  1  A  1 0
> 2014-09-29 00:00:03.853247 I  Mom - Hepatitis and Lemon Zest      
> 7 WWNY  29 20:31-21:00  1 12 12  A 12 0/-3

> Where "WWNY" also exists on 102-77.

> In fact, there are other less-than-satisfactory scheduling decisions
> being made in that same time-slot:

> 2014-09-29 00:00:03.853554 I  Scorpion - Single Point of Failure
> 100-7 CITY  29 21:00-21:59  2  8  8  A  8 0

> is also being shown on WWNY at 21:01-21:59 (so starting a minute later
> than the above scheduled recording).

> Ahhh.  But one thing worth noting is that WWNY, on both analog and
> digital have a channel priority of -10, where every other channel's
> priority is at 0.  The reason for the -10 is that that is CBS and they
> are horrible at keeping to their schedule on Sunday evenings.

> TBH, I really only want them de-prioritized on Sunday evenings and not
> really all of the time, but MythTV can't handle that.  Not without some
> external database fiddling at least.

> So maybe the -10 on WWNY explains the Scorpion issue above, but it still
> doesn't explain why "Mom" was scheduled to record on a separate analog
> tuner when a digital multiplex was already being used at the same time.

> And no, I am not maxed out on virtual tuners at that time.

> Cheers,
> b.

I have no experience with digital virtual tuners or subchannels, but I
know when scheduling it doesn't work chronologically. It first
schedules the shows with the highest priority to the tuners available
with the highest priority and so down the priority chain. Also in your
recording rule you can set the tuner you want to use and wether it
should favour digital channels.

Tot mails,
  Hika                            mailto:hikavdh at gmail.com

"Zonder hoop kun je niet leven
Zonder leven is er geen hoop
Het eeuwige dilemma
Zeker als je hoop moet vernietigen om te kunnen overleven!"

De lerende Mens