Date: Sat, 5 Apr 2003 22:45:59 +0200 From: Tobias Roth <roth@iam.unibe.ch> To: Lee Damon <nomad@castle.org> Cc: freebsd-mobile@freebsd.org Subject: Re: IBM T30: battery life under 5.0-current, ACPI/APM and sleep issues Message-ID: <20030405204558.GA26457@speedy.unibe.ch> In-Reply-To: <200304051943.h35JhXR2048783@castle.org> References: <200304051943.h35JhXR2048783@castle.org>
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On Sat, Apr 05, 2003 at 11:43:33AM -0800, Lee Damon wrote: > I know > that IBM has had problems with battery life in the past, so I > may just be a victim of that. :/ very likely. apm works on 4.8 here, and I heard it is also working on current for some people. however, IBM still has problems with batteries, and they know about it. the usual symptoms are as follows: the battery capacity reported by apm decreases normally up to some point (60%, 70% or even only 95%), and then suddenly drops to 5%. It's a problem with the capacity signal the battery logic transmits to the bios, not with the actual battery capacity. covering certain pins on the battery will disable that signal, and the battery will run for the expected duration. the same behaviour is present on windows as well. it definitely is a problem ibm should fix soon. it can happen to brand new batteries. greets, t.
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