Battery stats not displayed properly

[Fran Diéguez]

Battery stats never go over 66% of charge even when the battery is completely charged.

ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: gnome-control-center 1:3.14.2-2ubuntu2
ProcVersionSignature: Ubuntu 3.18.0-12.13-generic 3.18.4
Uname: Linux 3.18.0-12-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.16-0ubuntu1
Architecture: amd64
CurrentDesktop: GNOME
Date: Mon Feb 9 19:42:54 2015
InstallationDate: Installed on 2014-10-22 (110 days ago)
InstallationMedia: Ubuntu-GNOME 14.10 "Utopic Unicorn" - Alpha amd64 (20140923)
SourcePackage: gnome-control-center
UpgradeStatus: Upgraded to vivid on 2015-01-13 (26 days ago)
usr_lib_gnome-control-center: deja-dup 32.0-0ubuntu2

[Fran Diéguez (frandieguez)]

I'm using SystemD. I don't know if this could affect.

[Tim Lunn (darkxst)]

Fran, is the gnome-shell battery indicator displaying it correctly? If that is also broken, can you paste the output from `upower -d`

[Fran Diéguez (frandieguez)]

gnome-shell indicator is currently displaying 65% after 5 hours plugged in (so it should be 100%). Testing with previous releases of Ubuntu and it works.

Here is the output
$ LC_ALL=C upower -d
Device: /org/freedesktop/UPower/devices/line_power_ADP1
  native-path: ADP1
  power supply: yes
  updated: Tue Mar 24 18:27:26 2015 (23711 seconds ago)
  has history: no
  has statistics: no
  line-power
    warning-level: none
    online: yes
    icon-name: 'ac-adapter-symbolic'

Device: /org/freedesktop/UPower/devices/battery_BAT0
  native-path: BAT0
  vendor: SMP
  model: bq20z451
  power supply: yes
  updated: Wed Mar 25 01:01:17 2015 (80 seconds ago)
  has history: yes
  has statistics: yes
  battery
    present: yes
    rechargeable: yes
    state: fully-charged
    warning-level: none
    energy: 49.0779 Wh
    energy-empty: 0 Wh
    energy-full: 50.7751 Wh
    energy-full-design: 75.555 Wh
    energy-rate: 34.7443 W
    voltage: 12.007 V
    percentage: 65%
    temperature: 34.4 degrees C
    capacity: 67.2029%
    technology: lithium-ion
    icon-name: 'battery-full-charged-symbolic'

Device: /org/freedesktop/UPower/devices/DisplayDevice
  power supply: yes
  updated: Wed Mar 25 00:35:17 2015 (1640 seconds ago)
  has history: no
  has statistics: no
  battery
    present: yes
    state: fully-charged
    warning-level: none
    energy: 49.0779 Wh
    energy-full: 50.7751 Wh
    energy-rate: 34.7443 W
    percentage: 65%
    icon-name: 'battery-full-charged-symbolic'

Daemon:
  daemon-version: 0.99.2
  on-battery: no
  lid-is-closed: no
  lid-is-present: yes
  critical-action: HybridSleep

[Tim Lunn (darkxst)]

From those numbers It looks like upower is calculating the percentage based on engery-full-design which was the original capacity of your battery rather than the current energy-full.

Reassigning to upower since gnome is just doing what its told. Could well be a kernel bug though.

[Bruce Pieterse (octoquad)]

Fran are still seeing this problem in 15.04 or 15.10 if you have upgraded to 15.10 since you last reported this bug?

[Daniel van Vugt (vanvugt)]

Thank you for reporting this bug to Ubuntu.
Ubuntu 17.04 (zesty) reached end-of-life on January 13, 2018.
Ubuntu 16.10 (yakkety) reached end-of-life on July 20, 2017.
Ubuntu 15.10 (wily) reached end-of-life on July 28, 2016.
Ubuntu 15.04 (vivid) reached end-of-life on February 4, 2016.
Ubuntu 14.10 (utopic) reached end-of-life on July 23, 2015.
Ubuntu 13.10 (saucy) reached end-of-life on July 17, 2014.
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