On Wed, 2006-08-02 at 17:03 +0100, Andy Green wrote: > Just an idea -- on this laptop at least the ACPI reports the current > being drawn from the battery with good resolution, eg, when plugged in > and charged You can also just use gnome-power-manager - right click on the icon in the notification area and select "Information", then "Power History". It looks somewhat like this http://www.hughsie.com/applications/Coppermine/displayimage.php?album=9&pos=9 Using this tool I learned that - The difference from LCD max/min brightness is a ~1-2 watts on my IBM Thinkpad T41 - which is ~ 10% of the power drain - Powering down the disk via hdparm and using laptop-mode in the kernel also saves ~ 1W - another ~ 100% (unfortunately the IDE layer in the kernel don't really support power management yet and it's too dangerous / error prone to use hdparm by default in the distro) There's a bunch of other things related to run-time power management that is going on in the kernel right now and it looks pretty good so far. HTH, David -- fedora-devel-list mailing list fedora-devel-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/fedora-devel-list
