From mboxrd@z Thu Jan 1 00:00:00 1970 From: Vernon Mauery Subject: Re: Power usage in S3 Date: Mon, 28 Feb 2005 09:33:06 -0800 Message-ID: <422355D2.8040709@us.ibm.com> References: <20050228141701.4dc95eec@orfeo.nikhef.nl> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit In-Reply-To: <20050228141701.4dc95eec-acHaiI0CM+haAVKTNDtesg@public.gmane.org> 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: Tim Dijkstra Cc: acpi-devel List-Id: linux-acpi@vger.kernel.org Tim Dijkstra wrote: > Hi, > > Since a couple of weeks I have S3 working on my laptop (yeah!), but then > I stared wondering how long I can walk around with my laptop suspended. > > By keeping it suspended for a night and extrapolating the measured power > usage I concluded it can stay suspended (starting with batteries fully > loaded) for about 2.5 days. That doesn't seem awfully long to me... > Especially if you take into account the fact one usually suspends > after using it for while when it's at, say, 20%. > > So now I wonder, what usage do other people see? I finally got the power issues resolved on my Thinkpad T40 too. It can only sleep in S3 for about 2 days too. But, with a new high-capacity battery, it could probably go for 4 days. My wife's Thinkpad R40p can go for about a week, but it has a new battery and the FireGL T2 graphics card rather than the Radeon 7500. And it didn't need the radeon power stuff -- it only needed acpi_sleep=s3_bios. But, I am sure we can do better than 2-2.5 days... *But*, I am very pleased that we have come this far. For almost a year, I was using swsusp2 every night going home from work. As nice as that is, it still is too slow for an overnight sleep. --Vernon ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click