Date: Tue, 27 Jan 2009 16:19:31 -0700 From: Shawn Badger <shawnbadger@gmail.com> To: freebsd-questions@freebsd.org Subject: Laptop battery life on FreeBSD Message-ID: <497F9683.3080905@gmail.com>
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Hi, I recently installed FreeBSD 7.1 on my laptop, replacing Arch Linux and I noticed a significant drop in my battery life (from ~3 hours to ~1.5 hours). I realize that Linux has their "tickless" kernel, which I am sure explains the difference, but my question is... is there anything I can do in FreeBSD right now to improve this? And is there going to be any work done the kernel to allow the hardware to enter into a low-power state for an extended period of time? My laptop is an Acer Travelmate 4100 which has the following hardware: - Pentium M 1.6 GHz processer - 2 GB RAM - integrated video/sound - 802.11bg / bluetooth I'm somewhat of a minimalist and don't use X11. I've disabled the bluetooth adapter, but frequently use my wireless adapter (intel pro/2200bg). Does anyone have any suggestions that could potentially extend my battery life? Thank You, Shawn
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