Lamont R. Peterson wrote:
I would love to see battery life with Fedora right up there with the other Linux & BSD systems. I don't know what to try, either. So far, I've just resigned myself to the fate that battery life is just going to be shorter with Fedora.
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
cat /proc/acpi/battery/BAT1/state cat /proc/acpi/battery/BAT1/state present: yes capacity state: ok charging state: charged present rate: 0 mA remaining capacity: 4500 mAh present voltage: 12493 mV and when running from Battery present: yes capacity state: ok charging state: discharging present rate: 1283 mA <-------- remaining capacity: 4500 mAh present voltage: 12338 mVThe "present rate" value is very sensitive to backlight level, HDD on or off, USB stuff plugged in, CPU load and so on. I have this hooked up to the KDE "System Guard" telemetry displays in the kicker.
At least this allows you to put a number on exactly how much worse Fedora does than another distro you can run on the same laptop, and to objectively determine any improvement from evasive actions.
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