Ubuntu
upower package

Power indicator shows wrong time left to charge on Lenovo Ideapad Y580

Bug #1219942 reported by Alexandru Bolboaca
10
This bug affects 2 people
Affects Status Importance Assigned to Milestone
upower (Ubuntu)
Confirmed
Undecided
Unassigned

Bug Description

The power indicator shows time left to charge being 5, 4, 3, 2, 1 or "Time left unknown" instead of the real duration.

The time left on battery power is correctly computed. When I remove the power, it takes a little bit until it switches from the wrong duration to charge to the real time left on battery power, sometimes going to sleep as a result of thinking it has little power left.

See the screenshot for the displayed value.

ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: indicator-power 12.10.6daily13.03.07-0ubuntu1
ProcVersionSignature: Ubuntu 3.8.0-29.42-generic 3.8.13.5
Uname: Linux 3.8.0-29-generic i686
ApportVersion: 2.9.2-0ubuntu8.3
Architecture: i386
Date: Mon Sep 2 21:11:00 2013
InstallationDate: Installed on 2013-01-09 (236 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release i386 (20121017.2)
MarkForUpload: True
ProcEnviron:
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: indicator-power
UpgradeStatus: Upgraded to raring on 2013-09-01 (1 days ago)

Revision history for this message
Alexandru Bolboaca (alex-boly) wrote :
Revision history for this message
Daniel Letzeisen (dtl131) wrote :

Could be related: https://bugs.launchpad.net/ubuntu/+source/upower/+bug/1136227

Revision history for this message
Charles Kerr (charlesk) wrote :

Alexandru, the next time this happens could you attach a new screenshot -and- the output of "upower --dump"? indicator-power gets the time remaining from upower, so I'd like to see whether the information in "upower --dump" shows the same error or whether indicator-power is introducing the bug itself.

Changed in indicator-power (Ubuntu):
status: New → Incomplete
Revision history for this message
Alexandru Bolboaca (alex-boly) wrote :
Download full text (3.6 KiB)

Sure. See the attached photo for the charging battery and two dumps: when charging (and showing the wrong time left) and discharging (and showing the correct time left).

upower --dump when charging
========================

Device: /org/freedesktop/UPower/devices/line_power_ACAD
  native-path: /sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/device:01/ACPI0003:00/power_supply/ACAD
  power supply: yes
  updated: Fri Oct 4 09:09:22 2013 (34 seconds ago)
  has history: no
  has statistics: no
  line-power
    online: yes

Device: /org/freedesktop/UPower/devices/battery_BAT1
  native-path: /sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/device:01/PNP0C0A:00/power_supply/BAT1
  vendor: SANYO
  model: PABAS0241231
  serial: 41167
  power supply: yes
  updated: Fri Oct 4 09:09:28 2013 (28 seconds ago)
  has history: yes
  has statistics: yes
  battery
    present: yes
    rechargeable: yes
    state: charging
    energy: 4.229 Wh
    energy-empty: 0 Wh
    energy-full: 5.989 Wh
    energy-full-design: 6.271 Wh
    energy-rate: 64.23 W
    voltage: 11.621 V
    time to full: 1.6 minutes
    percentage: 70.6128%
    capacity: 95.5031%
    technology: lithium-ion
  History (charge):
    1380874162 70.613 charging
    1380874152 70.696 discharging
    1380874122 70.963 discharging
    1380874092 71.214 discharging
  History (rate):
    1380874168 64.230 charging
    1380874164 65.325 charging
    1380874162 1.243 charging
    1380874152 1.324 discharging
    1380874122 1.359 discharging
    1380874092 1.187 discharging

Daemon:
  daemon-version: 0.9.20
  can-suspend: yes
  can-hibernate: no
  on-battery: no
  on-low-battery: no
  lid-is-closed: no
  lid-is-present: yes
  is-docked: no

upower --dump when discharging
==========================

Device: /org/freedesktop/UPower/devices/line_power_ACAD
  native-path: /sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/device:01/ACPI0003:00/power_supply/ACAD
  power supply: yes
  updated: Thu Oct 3 18:24:25 2013 (53080 seconds ago)
  has history: no
  has statistics: no
  line-power
    online: no

Device: /org/freedesktop/UPower/devices/battery_BAT1
  native-path: /sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/device:01/PNP0C0A:00/power_supply/BAT1
  vendor: SANYO
  model: PABAS0241231
  serial: 41167
  power supply: yes
  updated: Fri Oct 4 09:08:42 2013 (23 seconds ago)
  has history: yes
  has statistics: yes
  battery
    present: yes
    rechargeable: yes
    state: discharging
    energy: 4.25 Wh
    energy-empty: 0 Wh
    energy-full: 5.989 Wh
    energy-full-design: 6.271 Wh
    energy-rate: 1.359 W
    voltage: 11.298 V
    time to empty: 3.1 hours
    percentage: 70.9634%
    ca...

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Revision history for this message
Launchpad Janitor (janitor) wrote :

[Expired for indicator-power (Ubuntu) because there has been no activity for 60 days.]

Changed in indicator-power (Ubuntu):
status: Incomplete → Expired
Revision history for this message
Alexandru Bolboaca (alex-boly) wrote :

I see the bug was marked as expired, although it's still happening after upgrade to 13.10

Revision history for this message
Matthew Paul Thomas (mpt) wrote :

(Sorry about that, Alexandru. The report expired because of a bug in Launchpad, bug 196590.)

Changed in indicator-power (Ubuntu):
status: Expired → New
Revision history for this message
Charles Kerr (charlesk) wrote :

> time to full: 1.6 minutes
> percentage: 70.6128%

Looks like indicator-power is correctly reporting the incorrect stats fed to it by upower.

affects: indicator-power (Ubuntu) → upower (Ubuntu)
Revision history for this message
Launchpad Janitor (janitor) wrote :

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in upower (Ubuntu):
status: New → Confirmed
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