Bug 505800 - 0.4% battery will last me 5 hours
0.4% battery will last me 5 hours
Product: Fedora
Classification: Fedora
Component: DeviceKit-power (Show other bugs)
All Linux
low Severity medium
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Assigned To: Richard Hughes
Fedora Extras Quality Assurance
Depends On:
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Reported: 2009-06-13 19:55 EDT by Bastien Nocera
Modified: 2010-06-28 08:58 EDT (History)
3 users (show)

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Doc Type: Bug Fix
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Last Closed: 2010-06-28 08:58:46 EDT
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Description Bastien Nocera 2009-06-13 19:55:06 EDT
gnome-power-manager tells me that my 0.4% battery will last me 5 hours.

I think the actual battery power is closer to 95% as the laptop was on charge for a couple of hours, on a brand new battery.


$ cat /sys/devices/LNXSYSTM:00/device:00/PNP0C0A:00/power_supply/BAT0/charge_full
$ cat /sys/devices/LNXSYSTM:00/device:00/PNP0C0A:00/power_supply/BAT0/charge_full_design
$ cat /sys/devices/LNXSYSTM:00/device:00/PNP0C0A:00/power_supply/BAT0/charge_now

The energy-full looks weird (and I'm on battery as those dumps were taken).

$ devkit-power -d
Device: /org/freedesktop/DeviceKit/Power/devices/line_power_AC
  native-path:          /sys/devices/LNXSYSTM:00/device:00/ACPI0003:00/power_supply/AC
  power supply:         yes
  updated:              Sun Jun 14 00:34:15 2009 (916 seconds ago)
  has history:          no
  has statistics:       no
    online:             no

Device: /org/freedesktop/DeviceKit/Power/devices/battery_BAT0
  native-path:          /sys/devices/LNXSYSTM:00/device:00/PNP0C0A:00/power_supply/BAT0
  vendor:               Samsung SDI
  model:                DELL JG7688
  serial:               1549
  power supply:         yes
  updated:              Sun Jun 14 00:49:27 2009 (4 seconds ago)
  has history:          yes
  has statistics:       yes
    present:             yes
    rechargeable:        yes
    state:               discharging
    energy:              67.821 Wh
    energy-empty:        0 Wh
    energy-full:         16447.2 Wh
    energy-full-design:  0 Wh
    energy-rate:         12.1656 W
    voltage:             12.103 V
    time to full:        0 seconds
    time to empty:       5.6 hours
    percentage:          0.412356%
    capacity:            100%
    technology:          lithium-ion
  History (charge):
    1244936967	0.412	discharging
    1244936957	0.413	discharging
    1244936937	0.413	discharging
    1244936927	0.413	discharging
    1244936907	0.414	discharging
    1244936897	0.414	discharging
    1244936877	0.415	discharging
    1244936867	0.415	discharging
  History (rate):
    1244936967	12.166	discharging
    1244936957	12.454	discharging
    1244936937	15.473	discharging
    1244936927	15.373	discharging
    1244936907	15.462	discharging
    1244936897	15.407	discharging
    1244936877	16.051	discharging
    1244936867	15.373	discharging

  daemon-version:  008
  can-suspend:     yes
  can-hibernate    yes
  on-battery:      no
  on-low-battery:  no
Comment 1 Richard Hughes 2009-07-10 03:21:50 EDT
Could you try https://admin.fedoraproject.org/updates/DeviceKit-power-009-1.fc11 first please, and if that doesn't work I'll go through the coldplug logic and look for bugs. Thanks dude.
Comment 2 Bug Zapper 2010-04-27 10:53:13 EDT
This message is a reminder that Fedora 11 is nearing its end of life.
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Comment 3 Bug Zapper 2010-06-28 08:58:46 EDT
Fedora 11 changed to end-of-life (EOL) status on 2010-06-25. Fedora 11 is 
no longer maintained, which means that it will not receive any further 
security or bug fix updates. As a result we are closing this bug.

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