[mythtv-users] setting tuner priority to -1 completely disables it

Nick Rout nick.rout at gmail.com
Sat Nov 17 21:36:32 UTC 2012


On Fri, Nov 16, 2012 at 7:23 AM, Brian J. Murrell <brian at interlinx.bc.ca>wrote:

> Using 0.25-fixes...
>
> I have 4 tuners, 2 digital (clearqam) and 2 analog where one of the
> analogs is on analog cable directly and the other is connected to a DTA
> (i.e. digital set top box).
>
> I have added the tuners in the order that I want to utilize them which
> is D1, D2, AD and AA representing the two digital clearqam tuners, the
> one that records from the DTA and the pure analog one.
>
> The AD and AA tuners have most of the same channels which is a super-set
> of the channels on the D1 and D2 tuners.  The following concerns
> programming only available on the AD and AA tuners so you can probably
> disregard the D{1,2} tuners for the remainder of this report...
>
> I have been finding situations in the scheduling where the AA tuner is
> getting scheduled for a program that is available (only) on the AA and
> AD tuners but when the AD tuner is available (typically it seems to have
> been used in the prior timeslot when this happens).  This is contrary to
> what I have read here many times over in that tuners are chosen in the
> order they were added.
>
> So to try to force the use of the AD tuner whenever it's available, I
> set the Input priority of the AA tuner to -1 hoping to force it to be
> selected less.
>
> That seems to have resulted in the AA tuner *never* being used, even
> when there is a conflict on the AD tuner (for a program that is only
> available to the AA and AD tuners, of course).
>
> I've put the priority back to 0 and now both AD and AA are being used
> but again, AA is being chosen in priority over AD at times when AD is
> idle, but might have just had something scheduled on it in the previous
> timeslot.  IOW, the scheduler seems to be trying to avoid back-to-back
> recordings on a single tuner.
>
> How do I resolve this?
>
>
It is probably caused by overlap, ie the previous timeslot overlaps with
the current one because we all put a bit extra o the start and end of our
recording times. Therefore one tuner cannot cover both timeslots.
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