Messages in this thread | | | Date | Sat, 14 Jan 2006 14:06:29 +0100 | From | Jens Axboe <> | Subject | Re: [ck] Re: 2.6.15-ck1 |
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On Fri, Jan 13 2006, Dave Jones wrote: > On Fri, Jan 13, 2006 at 09:42:26PM -0600, Philipp Rumpf wrote: > > Out of curiosity, why didn't you do the monitoring using > > /proc/acpi/battery/.../{state,info} (while running off battery)? I > > think that should have much finer granularity, and avoid various > > capacitors that might be in the way and explain the effect you > > noticed. > > ACPI battery reporting seems hit-or-miss at times. > Sometimes it seems to not update for ages, and then suddenly > there's a burst when suddenly 5% of the battery drains in > seconds. As an overall 'how much battery is left' thing it seems > ok, but I don't trust it for accurate measurements of power drain. > > Whether this is a firmware deficiency causing us not to see > regular interrupts, or a problem with the acpi parser I don't know.
Or could very well be a problem with your battery.
-- Jens Axboe
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