Holger Macht hmacht at
Thu Mar 29 15:30:09 PDT 2007

On Thu 29. Mar - 18:25:24, David Zeuthen wrote:
> On Fri, 2007-03-30 at 00:21 +0200, Holger Macht wrote:
> > > > I'm talking about a GNOME or KDE _without_ gnome-power-manager or
> > > > kpowersave.
> > > 
> > > IMO this is something the desktop and not a powermanager should implement. 
> > > KPowersave for example also don't call HAL to Shutdown, it call simply KDE to 
> > > handle this (via DCOP and in KDE4 IMO via DBus). 
> > 
> > Good point. 
> I agree that power managers probably shouldn't call into HAL; they need
> to cooperate with e.g. native session management. I was even reluctant
> to add the Shutdown() and Reboot() methods on HAL originally but I got
> talked into doing it.
> > For system sleep, the pm app knows best how to prepare this
> > tricky thing. So Suspend()/Hibernate() is generally located there. For
> > shutdown, and thus saving the session, saving all unsaved documents,
> > etc. the desktop base itself should know best. So the method should got
> > there. It might be clever to let Suspend()/Hibernate() be implemented by
> > the pm app and Shutdown()/Reboot() by the desktop base. That wouldn't be
> > possible with this spec IMO.
> It doesn't have to; the PM daemon implementing this interface can just
> forward the messages to the appropriate session manager.

And it will be that way. g-p-m isn't calling the gnome session logout
method when it gets a Shutdown() call?

> (Of course it would be easier to just remove Shutdown()/Reboot() from
> the spec and leave this problem to people who care session management)

IMO, it wouldn't be just easier, but more correct.


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