My laptop's battery is bigger than yours
Sam Varshavchik
mrsam at courier-mta.com
Thu Nov 12 12:04:13 UTC 2009
Richard Hughes writes:
> 2009/11/12 Sam Varshavchik <mrsam at courier-mta.com>:
>> Somehow, since a few weeks ago, occasionally gnome power manager loses its
>> mind and starts telling me that my laptop battery's "last full charge" is
>> 946.0 watt-hours of juice. Which makes the battery percentage indicator
>> pretty much meaningless.
>
> Have a look at /sys/class/power_supply/BAT*/* when this happens. I
> would bet money the kernel is lying to us.
If I'm reading this right, the kernel is giving out right data.
[root at lc2440 BAT0]# cat /sys/class/power_supply/BAT0/energy_full
63000000
[root at lc2440 BAT0]# cat /sys/class/power_supply/BAT0/energy_full_design
60000000
[root at lc2440 BAT0]# cat /sys/class/power_supply/BAT0/energy_now
59055000
This matches up what gnome-power-manager is telling me what my current
charge is -- 59 watt-hours left. My full charge is 63 watt-hours, and the
full design charge is 60 watt-hours (it's a fairly new battery).
Meanwhile, with all of the above, gnome-power-manager is now showing me the
last full charge of 947.4 watt-hours, throwing everything off kilter.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 197 bytes
Desc: not available
Url : http://lists.fedoraproject.org/pipermail/users/attachments/20091112/6e11e1f2/attachment-0001.bin
More information about the users
mailing list