On Tuesday 08 December 2009 15:32:52 you wrote: > On Tue, 2009-12-08 at 15:12 +0100, Dario Freddi wrote: > > On Tuesday 08 December 2009 14:55:42 Anders Lund wrote: > > > Hi, > > > > > > I would like to request a DBus signal notifying interrested parties > > > about system suspend/hibernate/resume events. > > > > I second his request (I'm the maintainer of the power management KDE > > daemon). Just clarifying, we're interested in having signals both upon > > suspension AND wakeups. > > Do you want to be able to halt or interrupt the state transition?
I don't see any use cases at the moment for that, so from my point of view not - I would just be interested in getting a wakeup signal to notify the workspace of that. Although, it could be interesting to have such a possiblity, but I would first check if anybody is really interested in that. > > > Moreover, it would be nice (given also the discussions about > > suspend-hybrid in the list) to have somehow a notification of the fact > > that the PC is getting from the suspend to RAM to suspend to disk state. > > I'm just future-proofing here, though :) > > Right now that will be rather tricky to arrange in general -- > suspend-hybrid does different things depending on the lowlevel tools you > are using. > > Userspace swsusp and tuxonice both create a hibernate image and then > enter S3 instead of powering off, so the way they "transition" from > suspend to hibernate is by running out of battery. > > Arranging to signal what sleep state the system is waking up from is > easier to from a pm-utils standpoint -- will that do? Yes, it could - however, the pm-utils+upower stuff is a confusing me a bit - will one depend on another or something like that? If upower in the end came up depending on pm-utils and most of all, if pm- utils would actually guarantee a mean of API/ABI stability, it would definitely fit. But I think a better idea would be having the signal being streamed from upower (since if the aim is providing an unique and future-proof system), triggered from an hook in pm-utils. I think such a solution would be the best of both worlds. > > > _______________________________________________ > > devkit-devel mailing list > > devkit-devel@lists.freedesktop.org > > http://lists.freedesktop.org/mailman/listinfo/devkit-devel > -- ------------------- Dario Freddi KDE Developer GPG Key Signature: 511A9A3B
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