From: "Carl Gehr" Received: from [192.168.100.201] (account carl.gehr@mcgcg.com HELO Carl-T60) by 2rosenthals.com (CommuniGate Pro SMTP 5.1.16) with ESMTPA id 1926944 for ecs-t6x@2rosenthals.com; Sat, 14 Jun 2008 13:01:42 -0400 To: "eCS ThinkPad T60/61 Mailing List" Date: Sat, 14 Jun 2008 13:01:39 -0400 (EDT) Reply-To: "Carl Gehr" Priority: Normal X-Mailer: PMMail 2.20.2382 for OS/2 Warp 4.5 In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Subject: Re: [eCS T60/T61] ACPI/APM support on T61 Message-ID: On Sat, 14 Jun 2008 07:34:21 -0400, madodel wrote: >Jon Harrison wrote: >> On Thu, 12 Jun 2008 13:45:48 -0400, madodel wrote: >> >> >> The battery object shows it is set to maximum performance. I just >> tried to change it to "battery optimized" but it doesn't change! >> Not sure what the deal is with that. > >Battery optimization just doesn't work with ACPI. At least it has never >worked on my T42p unless I used APM.SYS instead of ACPI, and it doesn't >work with my T61 now (APM.SYS doesn't appear to work on this). Pasha >suggested using the SetGetThrtl.exe to manually do what battery >optimization is supposed to do to use less power. Using "SetGetThrtl 1 >50" I get about an extra 35-40 minutes on battery on the T61. Anyone know >what battery optimization throttles the CPU down to to get longer battery >time? I will try a few different values (I think it says 16% is the >lowest) to see what is the lowest acceptable value. Has anyone tried >SetGetState to see if it works on their T6x? This adjusts CPU speed (as >opposed to SetGetThrtl which adjusts the amount of CPU idle time). Here I >just get a message that my CPU is not found or not supported. I have not timed my T60, but most of the time when I'm on the road, I've usually gotten about three hours on my 9-cell battery [approx 18 months old] with no special tweaking of ACPI. But, I believe this is because I have the BIOS set up to do this switching from A/C mode to battery mode. I don't know, possibly with the SetGet... stuff, I could get more. But I've not done any testing. Carl