On Mon, 2004-05-10 at 03:52, Cedric Pradalier wrote: > According to Adam Israel, on Sun, 09 May 2004 18:55:53 -0500, > >I've got Debian sid installed on my iBook (G3, 800Mhz). > > > >Maybe I'm misunderstanding how power management works on the PowerPC, > >or maybe something is misconfigured. It seems that the battery only > >lasts for about 2 hours. I'll watch the battery drain to around 85%, > >and then it drops to 0%. > > I don't understand what is occuring. Mine goes for about 3h30-4h00, with > low backlight. Maybe your battery is badly calibrated
Is there a way to re-calibrate the battery then? FWIW, the battery usage seemed just fine under OSX. The testing I did was with the backlight on the lowest possible settings. > Note also that USB devices consume a lot of energy, even when sleeping : > my ibook can't pass the night sleeping with an usb mouse, and stand 3 or > 4 days without. > I don't have any USB devices plugged in. > > > >I've tried using pmud and apmd, and both had the same behavior (though > >pmud actually suspends-on-close whereas apmd didn't). > > You should not use apmd. The ibook chip is pmu. > > > > >/proc/pmu/battery_0 looks like on full charge: > >flags : 00000011 > >charge : 21768 > >max_charge : 21886 > >current : -1174 > >voltage : 11674 > >time rem. : 66750 > > This is odd also : mine looks like : > flags : 00000011 > charge : 4125 > max_charge : 4147 > current : -1163 > voltage : 11947 > time rem. : 12768 > > There seems to be quite the difference between yours and mine, specifically the charge, max_charge, and time remaining. I wonder if this is causing a miscalculation somewhere. Adam
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