Ubuntu 14.04 电池图标在启动后直到下次重启后都有固定值

Ubuntu 14.04 电池图标在启动后直到下次重启后都有固定值

我在一台戴尔 Inspiron 14 系列 5000 机器上安装了 Ubuntu 14.04 LTS 和 Win8.1 双启动系统。它有很多 bug,首先是无线不稳定,然后每次更新都会出现新的 bug,我猜是这些 bug 让我厌烦了。

最近,当我启动计算机时,无论是否插入电源,电池都会显示正确的百分比,但它永远不会改变。该值是固定的,直到电量完全耗尽,只有那时我才知道应该插入电源。运行时:

 upower -i /org/freedesktop/UPower/devices/battery_BAT0

我得到:

  native-path:          (null)
  power supply:         no
  updated:              Thu 01 Jan 1970 02:00:00 EET (1442252072 seconds ago)
  has history:          no
  has statistics:       no
  unknown
    warning-level:       unknown
    icon-name:          '(null)'

运行时:

upower -i /org/freedesktop/UPower/devices/battery_BAT1

我得到:

     native-path:          BAT1
  vendor:               SANYO
  model:                DELL R0JM64B4
  serial:               0994
  power supply:         yes
  updated:              Mon 14 Sep 2015 19:47:30 EET (84 seconds ago)
  has history:          yes
  has statistics:       yes
  battery
    present:             yes
    rechargeable:        yes
    state:               discharging
    warning-level:       none
    energy:              16.7292 Wh
    energy-empty:        0 Wh
    energy-full:         39.6468 Wh
    energy-full-design:  45.144 Wh
    energy-rate:         11.1888 W
    voltage:             10.65 V
    time to empty:       1.5 hours
    percentage:          42%
    capacity:            87.823%
    technology:          lithium-ion
    icon-name:          'battery-good-symbolic'
  History (charge):
    1442252850  42.000  discharging

time to empty是实际时间,而不是电池图标中显示的时间。

[更新] 正在运行:

acpi -b

得到我:

Battery 0: Discharging, 15%, 00:32:53 remaining

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