Comment 2 for bug 1904793

I've been monitoring upower and I think the problem is it is incorrectly detecting the number of batteries in my laptop. I only have one yet upower detects 5 power sources. One of them is a DisplayDevice which normally shows the same amount of battery as my system battery. Sometimes that drops to 1% or 0%. I've had my laptop plugged in all day here are two upower -d dumps from within the last 5 minutes. Notice in the first dump /org/freedesktop/UPower/devices/DisplayDevice has 0% battery despite the laptop being plugged in. On the second it has the same engery, energy-full, and percentage as /org/freedesktop/UPower/devices/battery_BAT0.

$ upower -d
Device: /org/freedesktop/UPower/devices/line_power_AC
  native-path: AC
  power supply: yes
  updated: Mon 30 Nov 2020 02:36:20 PM PST (13554 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: Celxpert
  model: 5B10V98091
  serial: 1695
  power supply: yes
  updated: Mon 30 Nov 2020 06:20:22 PM PST (112 seconds ago)
  has history: yes
  has statistics: yes
  battery
    present: yes
    rechargeable: yes
    state: charging
    warning-level: none
    energy: 0 Wh
    energy-empty: 0 Wh
    energy-full: 654.79 Wh
    energy-full-design: 80.4 Wh
    energy-rate: 0 W
    voltage: 7.189 V
    percentage: 0%
    capacity: 88.4453%
    technology: lithium-polymer
    icon-name: 'battery-caution-charging-symbolic'
  History (charge):
    1606789222 0.000 charging

Device: /org/freedesktop/UPower/devices/line_power_ucsi_source_psy_USBC000o001
  native-path: ucsi-source-psy-USBC000:001
  power supply: yes
  updated: Fri 27 Nov 2020 02:59:19 PM PST (271375 seconds ago)
  has history: no
  has statistics: no
  line-power
    warning-level: none
    online: no
    icon-name: 'ac-adapter-symbolic'

Device: /org/freedesktop/UPower/devices/line_power_ucsi_source_psy_USBC000o002
  native-path: ucsi-source-psy-USBC000:002
  power supply: yes
  updated: Fri 27 Nov 2020 02:59:18 PM PST (271376 seconds ago)
  has history: no
  has statistics: no
  line-power
    warning-level: none
    online: no
    icon-name: 'ac-adapter-symbolic'

Device: /org/freedesktop/UPower/devices/DisplayDevice
  power supply: yes
  updated: Mon 30 Nov 2020 06:20:22 PM PST (112 seconds ago)
  has history: no
  has statistics: no
  battery
    present: yes
    state: charging
    warning-level: none
    energy: 0 Wh
    energy-full: 654.79 Wh
    energy-rate: 0 W
    percentage: 0%
    icon-name: 'battery-caution-charging-symbolic'

Daemon:
  daemon-version: 0.99.11
  on-battery: no
  lid-is-closed: no
  lid-is-present: yes
  critical-action: HybridSleep

$ upower -d
Device: /org/freedesktop/UPower/devices/line_power_AC
  native-path: AC
  power supply: yes
  updated: Mon 30 Nov 2020 02:36:20 PM PST (13733 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: Celxpert
  model: 5B10V98091
  serial: 1695
  power supply: yes
  updated: Mon 30 Nov 2020 06:24:22 PM PST (51 seconds ago)
  has history: yes
  has statistics: yes
  battery
    present: yes
    rechargeable: yes
    state: fully-charged
    warning-level: none
    energy: 71.71 Wh
    energy-empty: 0 Wh
    energy-full: 654.79 Wh
    energy-full-design: 80.4 Wh
    energy-rate: 0 W
    voltage: 17.173 V
    percentage: 99%
    capacity: 88.4453%
    technology: lithium-polymer
    icon-name: 'battery-full-charged-symbolic'

Device: /org/freedesktop/UPower/devices/line_power_ucsi_source_psy_USBC000o001
  native-path: ucsi-source-psy-USBC000:001
  power supply: yes
  updated: Fri 27 Nov 2020 02:59:19 PM PST (271554 seconds ago)
  has history: no
  has statistics: no
  line-power
    warning-level: none
    online: no
    icon-name: 'ac-adapter-symbolic'

Device: /org/freedesktop/UPower/devices/line_power_ucsi_source_psy_USBC000o002
  native-path: ucsi-source-psy-USBC000:002
  power supply: yes
  updated: Fri 27 Nov 2020 02:59:18 PM PST (271555 seconds ago)
  has history: no
  has statistics: no
  line-power
    warning-level: none
    online: no
    icon-name: 'ac-adapter-symbolic'

Device: /org/freedesktop/UPower/devices/DisplayDevice
  power supply: yes
  updated: Mon 30 Nov 2020 06:22:22 PM PST (171 seconds ago)
  has history: no
  has statistics: no
  battery
    present: yes
    state: fully-charged
    warning-level: none
    energy: 71.71 Wh
    energy-full: 654.79 Wh
    energy-rate: 0 W
    percentage: 99%
    icon-name: 'battery-full-charged-symbolic'

Daemon:
  daemon-version: 0.99.11
  on-battery: no
  lid-is-closed: no
  lid-is-present: yes
  critical-action: HybridSleep