Battery Lifetime

Carsten Haitzler (The Rasterman) raster at
Fri Jul 18 15:56:29 CEST 2008

On Fri, 18 Jul 2008 15:12:45 +0200 Joerg Reisenweber <joerg at>

> Am Fr  18. Juli 2008 schrieb arne anka:
> > > Touchscreen is not a "wake from suspend" source, so as you suggest it
> > > didn't get to suspend to make this trouble.
> > 
> > not sure i understand you correctly, but several times i experience that  
> > the fr, while seemingly in suspended state, answers to a screen tap  
> > showing several console messages (whihte font, black background) and then  
> > switching to the lock screen.
> > 
> > otoh, what i meant was: when the fr frequently wakes up the screen becomes  
> > sensitive and any tap would prevent the fr from going back to suspend --  
> > so if in one of these moments of short resumes the screen ist tapped and  
> > again and again the fr would never resume thus draining the battery  
> > quickliy.
> And what is it that stops us from disabling ts, just reenabling it when we
> see a valid wake-source to stay in user-land (e.g. inbound call, RTC, 
> powerbutton...)?

no kernel mechanism to "power down" ts (like you can power down bluetooth
for example)? :)

Carsten Haitzler (The Rasterman) <raster at>

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