[mythtv-users] how to resolve a suboptimal scheduling situation

David Engel david at istwok.net
Thu Sep 9 19:58:28 UTC 2010


On Thu, Sep 09, 2010 at 11:43:06AM -0400, Brian J. Murrell wrote:
> OK.  Here I am again, with a scheduling question.
> 
> Given the schedule detail at http://brian.interlinx.bc.ca/schedule.txt
> notice on Sep. 22 at 21:00:
> 
> Modern Family                        40 CITY    22 21:00-21:31  1 0 0  A E -3
> Modern Family                         9 WWTI    22 21:00-21:31  1 4 4  A 4 -3
> Criminal Minds - "The Longest Nigh   39 CJOH    22 21:00-22:00  2 1 1  A 1 -2
> Shattered - "Don't Wanna Die"        42 SHCASEC 22 21:00-22:00  1 0 0  A E -2
> Criminal Minds - "The Longest Nigh   77 WWNY    22 21:00-22:00  2 0 0  A E -2
> Cougar Town - "All Mixed Up"         40 CITY    22 21:31-22:00  1 0 0  A E -3
> Cougar Town - "All Mixed Up"          9 WWTI    22 21:31-22:00  1 4 4  A 4 -3
> 
> If the "Criminal Minds" showing that is being recorded on "39 CJOH" (on
> a digital tuner) were instead recorded on "77 WWNY" (on the same digital
> tuner) then the "9 WWTI" (again, on the same digital tuner) showing of
> "Modern Family" could also be recorded and subsequently the "9 WWTI"
> showing of "Cougar Town" could also be recorded on the same digital
> tuner as "9 WWTI" and "77 WWNY" share a multiplex, with "39 CJOH" being
> on a different multiplex.

The problem is you've told Myth via priorities that 9 WWTI is just as
good as 936 WWTI.  Consequently, the scheduler chooses the showing on
9 WWTI/input 4 after the showings on 936 WWTI/inputs 1-3 conflict.
You need to change your priorities to tell the scheduler you prefer
936 WWTI over 9 WWTI (see below).

> Ultimately, I want to prefer digital recordings over analog recordings.
> Given that there are multiple places/ways to express this with some
> apparently having detrimental effects, how do I correctly express that
> to Mythtv?

You can use input priorities, channel priorities, the HDTV priority or
power priorities.  I personally use channel priorities because there
are some channels (mainly news) that I specifically want to quietly
fall back to analog without affecting other recordings.

If you change your priorities such that inputs 1-3 > input 4 or
channel 936 > 9, the scheduler "might" do exactly what you want.
Please try it and report back.

The reason I say might instead of will above is because there is a
questionable condition in the code that should handle that case.  That
condition might not let Myth do what you want unless SchedMoveHigher
is enabled.  After you change your priorities, please try with and
without SchedMoveHigher enabled.

David
-- 
David Engel
david at istwok.net


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