From mboxrd@z Thu Jan 1 00:00:00 1970 From: Rich Townsend Subject: Re: Battery alarm -> was General Questions: Date: Fri, 04 Feb 2005 14:46:18 -0500 Message-ID: <4203D10A.3090306@bartol.udel.edu> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit In-Reply-To: Sender: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Errors-To: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: "Rockefeller, Harry" , Acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: linux-acpi@vger.kernel.org Rockefeller, Harry wrote: > > My notebook, Uniwill N351S1, is - supposedly - both APM and ACPI 2.0 > supported. Would something as important as battery alarm simply not > be implemented in ACPI? Certainly. Many manufacturers have broken ACPI implementations; as far as they're concerned, if it works with Windows, then it "works". It's probably the case that Windows polls the battery, rather than relying on the alarm, so that broken implementations will still function. > FWIW, /proc/acpi/battery/BAT0/info gives both design capacity warning > and low data. These are fixed (non-settable) quantities, that have little to do with the alarm. > > A 'grep BTP dsdt.dsl' turns up: BTP0, 16, But no _BTP, which means no alarm. > > Can I modify dsdt.dsl to add this ACPI function myself? In principle, yes. If you like, I can have a look at your DSDT to see how easy it would be to add in _BTP. cheers, Rich ------------------------------------------------------- This SF.Net email is sponsored by: IntelliVIEW -- Interactive Reporting Tool for open source databases. Create drag-&-drop reports. Save time by over 75%! Publish reports on the web. Export to DOC, XLS, RTF, etc. Download a FREE copy at http://www.intelliview.com/go/osdn_nl