On Thursday 14 May 2009, Sebastian Kügler wrote: > On Thursday 14 May 2009 11:20:55 Aaron J. Seigo wrote: > > On Thursday 14 May 2009, Aaron J. Seigo wrote: > > > it is not an absolute number, it's a made up number. it's a guess. you > > > call > > > > on my way to bed i remembered one further point: on handheld devices this > > "time left" number would be a total joke. > > > > both my cell phone and n810 can last days if i let them sit, at least a > > day if i use it for things like SMS or email.... but as soon i start a > > voice call on the phone or a skype call on the n810 it's a whole > > different story. > > If you're running the standard software on the N810, you'll notice that it > reports two times: "Time left when idle" and "Time left when in use", the > latter is what we're doing as well.
it's an interesting approach: min/max based on power draw at idle and full use. not sure we can get that sort of set of numbers (with accuracy?) on a laptop. even then it's once again "numbers i have to do my own calculation on" and having 3 hours when idle and 20 minutes when in use seems to be still a pretty big spread. > > just as with the %, i would need to interpolate based on what i'm doing > > what that "Time left" number means. > > Though in the N810 case, one could probably have a worst case (You know how > much power the device can draw at max.) yes .. > Maybe this worst case scenario is something we could use as well? probably a lot harder with a laptop .. :/ > > these devices go into very deep sleep states that just sip at the power, > > but start drawing more or less power depending on the use case. and with > > those devices, that can change from minute to minute. > > I'm absolutely aware of that. It's not the first time I touch power > management. :) > > > so i suspect that the first thing we'd end up doing with the battery > > plasmoid on such devices is have a laugh as we watched the number wobble > > all over and then remove this feature. > > Actually, no. I'm suspending my notebook all the time, and have never ?? <obviousguy>when your machine is suspended, you can't see these numbers anyways and the user tends to count it as "kind of off anyways"</obviousguy> i don't see how this is relevant to the conversation at hand. -- Aaron J. Seigo humru othro a kohnu se GPG Fingerprint: 8B8B 2209 0C6F 7C47 B1EA EE75 D6B7 2EB1 A7F1 DB43 KDE core developer sponsored by Qt Software
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