[mythtv] REQ: power saving

[Marc Kessels]

Well, I tried to implement it, but unfortunately it failed when I tried to 
apply it against the current CVS. I already tried to fix it, but I did not 
manage to get it working properly (at least: my pc did not power on or off 
at the time required...)

Marc



At 06:00 24-5-2003, you wrote:
>Does this patch work with current cvs or version .8 release only?
>Thanks
>
>On Thu, 2003-05-22 at 06:20, Christian Hoenig wrote:
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> > Hi,
> >
> > Am Donnerstag, 22. Mai 2003 12:23 schrieb Marc Kessels:
> > > I am already a very happy user of mythtv. To avoid missing a recording, I
> > > keep my pc on all the time.
> > > But  I do have some concerns about the power consumption of my pc.
> > > considering a price of EUR 0.17 per kWh, and a consumption of 100 W, 
> I get
> > > 2.4 kWh per day, so 876 kWh per year, or EUR 148 (approx $ 173) per 
> year. I
> > > find this a bit to expensive...
> >
> > This is exactly why I implemened those stuff...
> >
> > > So I was wondering if it is possible to program the alarm clock in 
> the bios
> > > from mythtv to wake up the pc a couple of minutes before a recording 
> should
> > > take place. So the pc will power on as needed, and after the recording
> > > takes place (and no recording will take place in let say 10 minutes) 
> mythtv
> > > will program the bios again and halt the system. To avoid halting the
> > > system when using the PC, mythtv should look if a user logged in and 
> if so,
> > > only program the bios (and possibly also prevent the user from 
> halting the
> > > system when a recording is due in a couple of minutes or in progress).
> >
> > Here you can find my patches:
> > 
> http://www.gossamer-threads.com/perl/mailarc/gforum.cgi?post=57932;search_string=wakeup;guest=509876&t=search_engine#57932
> >
> > It does everything you request except it doesn't check if a user is 
> logged in
> > the machine. But it does check if a frontend is connected to the 
> backend so
> > it doesn't shutdown.
> > It also doesn't prevent the user from halting the machine. The backendhost
> > will shutdown automatically (and set the wakeuptime for the next 
> recording),
> > when no client is connected, no recording starts in the next say 15 
> minutes
> > and it is idle for an amount of time.
> > You have to simply choose "Exit MythTV", don't choose "Exit and shutdown" !
> >
> > I use this patch a long time now and it works flawlessly.
> >
> > But, since I don't know how to implement the shutdown feature over more 
> than
> > one backend, it will never make its way into cvs. If someone's 
> interessted to
> > help me on this, please get back to me.
> >
> > so far,
> > take care, have fun
> > /christian
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