[mythtv-users] Powersaving

[Per Kofod]

Thanks Brian

The mythshutdown command is just what I need.

David, I already have the setup you mention working; but want to 
safeguard the system
to react properly if shutdown is executed, or power button is pressed, 
and it looks like
the mythshutdown is just what I need. Then I can create my shutdown 
scripts to handle
that.

Thanks Per

On 06/16/2011 03:01 PM, David Watkins wrote:
> On 16 June 2011 13:48, Brian Long<briandlong at gmail.com>  wrote:
>> On Thu, Jun 16, 2011 at 8:25 AM, Per Kofod<per.s.kofod at gmail.com>  wrote:
>>> Hi
>>>
>>> I am new to using mythtv, and is currently running it on my desktop PC while
>>> waiting for the parts for building a HTPC.
>>>
>>> I have managed to set mythtv up so shut down automaticaly when not busy, and
>>> set the bios time to restart the the computer in time for the next
>>> recording, all very well. I used the method described on this page:
>>>
>>> http://www.mythtv.org/wiki/ACPI_Wakeup
>>>
>>> I would however like to take this one step further, as I would like to
>>> make sure,  that if shutdown is executed, I would like to have a script, that will
>>> check if  mythbackend is busy and not shut down if that is the case, or if mythbackend
>>> is not busy, set the wakeup time, if a later recording is scheduled.
>>>
>>> So my question is:
>>>
>>> 1: Does mythtv have a command, that will tell if the backend is busy?
>>> 2: Does mythtv have a command, that will return the time of the next
>>> recording? (or 0 if none).
>> Per, you should be using mythshutdown to determine if/when to shutdown.
>>
>> mythshutdown -h
>> Usage of mythshutdown
>> -w/--setwakeup time      (sets the wakeup time. time=yyyy-MM-ddThh:mm:ss
>>                           doesn't write it into nvram)
>> -t/--setscheduledwakeup  (sets the wakeup time to the next scheduled recording)
>> -q/--shutdown            (set nvram-wakeup time and shutdown)
>> -x/--safeshutdown        (equal to -c -t -q.  check shutdown possible, set
>>                            scheduled wakeup and shutdown)
>> -p/--startup             (check startup. check will return 0 if automatic
>>                                                            1 for manually)
>> -c/--check flag          (check shutdown possible
>>                           flag is 0 - don't check recording status
>>                                   1 - do check recording status (default)
>>                           returns 0 ok to shutdown
>>                                   1 reset idle check)
>> -l/--lock                (disable shutdown. check will return 1.)
>> -u/--unlock              (enable shutdown. check will return 0)
>> -s/--status flag         (returns a code indicating the current status)
>>                           flag is 0 - don't check recording status
>>                                   1 - do check recording status (default)
>>                           0 - Idle
>>                           1 - Transcoding
>>                           2 - Commercial Detection
>>                           4 - Grabbing EPG data
>>                           8 - Recording - only valid if flag is 1
>>                          16 - Locked
>>                          32 - Jobs running or pending
>>                          64 - In a daily wakeup/shutdown period
>>                         128 - Less than 15 minutes to next wakeup period
>>                         255 - Setup is running
>> -v/--verbose debug-level (Use '-v help' for level info
>> -h/--help                (shows this usage)
>>
>
> .. but if your needs are simple mythbackend can handle this automatically.
>
> In mythtv-setup  / General
>
> configure mythbackend to "Shutdown on Idle"
>
> and point to a suitable script to be run on shutdown passing it the
> %time parameter which mythbackend will set to the time of the next
> recording
>
> and a suitable command to shutdown the system.
>
> Then, when the backend is not recording or transcoding, and no
> frontends are connected mythtbackend will pass the time of the next
> recording to your script, which you can use to configure the ACPI
> wakeup, and shutdown the system.
>
> Works Well
>
> http://www.mythtv.org/wiki/ACPI_Wakeup#Integrate_into_mythTV_2
>
>
> or use the mythwelcome application which does the above (and more) for you
>
> http://www.mythtv.org/wiki/Mythwelcome
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