I'll attach the output of 'upower --dump' for three different
situations:
1. Shortly before my notebook battery drains: Note that the reported
battery percentage is 2.99967%, time to empty is 12.1 minutes. I have
seen the exact same values over a period of more than 10 minutes – those
are the lowest values I get, at this point they won't change anymore.
At the same time 'acpi -b' reports a battery percentage of 2%.
2. Shortly after I connected the power supply and booted up: Note that
now the reported values are really strange now. Not only battery
percentage is 0% but also energy-full and energy-full-design is 0 Wh.
'acpi -b' also reports a battery percentage of 0%.
3. A few minutes later (still charging): Values seem to be back to
normal.
Please have a look at the output of 'gsettings list-recursively
org.gnome.settings-daemon.plugins.power' in comment #15, setting:
'percentage-action 2'. I assume this means that critical battery action
should be fired at a battery percentage of 2%.
As I said before, 'upower --dump' will never report a lower battery
percentage than 2.99967%. Maybe this is why the critical battery action
isn't executed?
I'll try to manipulate this value and report back later.
stefan@rosa:~$ upower --dump
Device: /org/freedesktop/UPower/devices/line_power_ACAD
native-path:
/sys/devices/LNXSYSTM:00/device:00/PNP0A08:00/device:02/ACPI0003:00/power_supply/ACAD
power supply: yes
updated: Thu Nov 1 12:45:56 2012 (3222 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/device:00/PNP0A08:00/device:02/PNP0C0A:00/power_supply/BAT1
vendor: 13-17
model: Venturi
serial: 01317 01/24/2012
power supply: yes
updated: Thu Nov 1 13:39:32 2012 (6 seconds ago)
has history: yes
has statistics: yes
battery
present: yes
rechargeable: yes
state: discharging
energy: 1.798 Wh
energy-empty: 0 Wh
energy-full: 59.94 Wh
energy-full-design: 59.94 Wh
energy-rate: 8.88 W
voltage: 10.314 V
time to empty: 12.1 minutes
percentage: 2.99967%
capacity: 100%
History (rate):
1351773572 8.880 discharging
1351773542 8.868 discharging
1351773512 8.991 discharging
1351773482 9.490 discharging
stefan@rosa:~$ upower --dump
Device: /org/freedesktop/UPower/devices/line_power_ACAD
native-path:
/sys/devices/LNXSYSTM:00/device:00/PNP0A08:00/device:02/ACPI0003:00/power_supply/ACAD
power supply: yes
updated: Thu Nov 1 13:50:13 2012 (53 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/device:00/PNP0A08:00/device:02/PNP0C0A:00/power_supply/BAT1
vendor: 13-17
model: Venturi
serial: 01317 01/24/2012
power supply: yes
updated: Thu Nov 1 13:50:48 2012 (18 seconds ago)
has history: yes
has statistics: yes
battery
present: yes
rechargeable: yes
state: charging
energy: 0 Wh
energy-empty: 0 Wh
energy-full: 0 Wh
energy-full-design: 0 Wh
energy-rate: 0 W
voltage: 10.581 V
percentage: 0%
capacity: 100%
History (charge):
1351774213 0.000 unknown
History (rate):
1351774213 0.000 unknown
Daemon:
daemon-version: 0.9.17
can-suspend: yes
can-hibernate yes
on-battery: no
on-low-battery: no
lid-is-closed: yes
lid-is-present: yes
is-docked: yes
stefan@rosa:~$ upower --dump
Device: /org/freedesktop/UPower/devices/line_power_ACAD
native-path:
/sys/devices/LNXSYSTM:00/device:00/PNP0A08:00/device:02/ACPI0003:00/power_supply/ACAD
power supply: yes
updated: Thu Nov 1 13:50:13 2012 (448 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/device:00/PNP0A08:00/device:02/PNP0C0A:00/power_supply/BAT1
vendor: 13-17
model: Venturi
serial: 01317 01/24/2012
power supply: yes
updated: Thu Nov 1 13:57:18 2012 (23 seconds ago)
has history: yes
has statistics: yes
battery
present: yes
rechargeable: yes
state: charging
energy: 2.397 Wh
energy-empty: 0 Wh
energy-full: 59.94 Wh
energy-full-design: 59.94 Wh
energy-rate: 27.8413 W
voltage: 11.627 V
time to full: 2.1 hours
percentage: 3.999%
capacity: 100%
History (charge):
1351774578 3.999 charging
History (rate):
1351774578 27.841 charging
Daemon:
daemon-version: 0.9.17
can-suspend: yes
can-hibernate yes
on-battery: no
on-low-battery: no
lid-is-closed: yes
lid-is-present: yes
is-docked: yes
