On Fri, Mar 27, 2009 at 05:21:59AM +0800, Qingyou Meng wrote:
> To save power, we set display brightness to 0% by locking screen,
> but OS still consumes 95 mA, leaving at most ~10 hours battery life!
You must have done something wrong. I frequently test power comsumption
and I get 54 mA on a fully charged battery, dropping slowly as the battery
discharges[1] and nearly 20 hours battery life.
FWIW, I test with this command on a Debian installation:
sleep 120 && cat
/sys/class/power_supply/battery/{status,current_now,voltage_now,capacity}
[1] It's supposed to be the other way around - current increasing as the
battery discharges - but there's a current leak somewhere. It was down to 46
mA not too long ago with a kernel from the andy-tracking branch.
--
Rask Ingemann Lambertsen
Danish law requires addresses in e-mail to be logged and stored for a year
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