https://bugs.kde.org/show_bug.cgi?id=479173
Bug ID: 479173
Summary: Energy Savings setting for On Low Battery has no
effect with multiple batteries (two battery Thinkpad)
Classification: Plasma
Product: Powerdevil
Version: 5.27.10
Platform: Arch Linux
OS: Linux
Status: REPORTED
Severity: major
Priority: NOR
Component: general
Assignee: plasma-b...@kde.org
Reporter: tera_1...@hotmail.com
CC: m...@ratijas.tk, natalie_clar...@yahoo.de
Target Milestone: ---
SUMMARY
This is on an up to date Arch Linux with KDE Plasma on a Lenovo Thinkpad T480,
which has two batteries an internal (fixed) one, and an "external" (removable)
one.
When using just a single battery, the actions configured in Power Management >
Energy Savings for "On Low Battery" and in Power Management > Advances Power
Settings for "At critical level" function well if only the internal battery is
present.
However, when a second battery is inserted, passing below these thresholds no
longer produces any action. This has been verified to be the case then the
global percentage passes the threshold, when one battery, or even both
batteries pass the threshold. The result is that the system will, if left
unchecked, run both its batteries dry and perform a hard power off with loss of
data (which is what prompted me to set the severity of this bug report to
"major").
STEPS TO REPRODUCE
1. Find a laptop with two batteries, such as the Lenovo Thinkpad T480.
2. Remove the external battery.
3. Set some actions in Power Management > Energy Savings for "On Low Battery".
4. Set a threshold in Power Management > Advances Power Settings for "Low
level".
5. Let the battery discharge below that threshold.
6. Observe action being triggered.
7. Insert external battery.
8. Let batteries discharge below threshold
9. Observe that no action is triggered.
OBSERVED RESULT
As in 9. above, the actions are not triggered.
EXPECTED RESULT
One would expect that, like in 6. actions would be triggered in accordance with
user settings.
SOFTWARE/OS VERSIONS
Operating System: Arch Linux
KDE Plasma Version: 5.27.10
KDE Frameworks Version: 5.113.0
Qt Version: 5.15.11
Kernel Version: 6.6.8-arch1-1 (64-bit)
Graphics Platform: X11
Processors: 8 × Intel® Core™ i7-8550U CPU @ 1.80GHz
Memory: 15,4 GiB of RAM
Graphics Processor: Mesa Intel® UHD Graphics 620
Manufacturer: LENOVO
Product Name: 20L6S8FB00
System Version: ThinkPad T480
ADDITIONAL INFORMATION
Output of `upower -d` with only one battery:
Device: /org/freedesktop/UPower/devices/line_power_AC
native-path: AC
power supply: yes
updated: Fri 29 Dec 2023 06:14:24 PM GMT (3091 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/battery_BAT0
native-path: BAT0
vendor: LGC
model: 01AV420
serial: 3964
power supply: yes
updated: Fri 29 Dec 2023 07:05:32 PM GMT (23 seconds ago)
has history: yes
has statistics: yes
battery
present: yes
rechargeable: yes
state: discharging
warning-level: none
energy: 15.27 Wh
energy-empty: 0 Wh
energy-full: 17.06 Wh
energy-full-design: 23.94 Wh
energy-rate: 5.953 W
voltage: 11.93 V
charge-cycles: 18
time to empty: 2.6 hours
percentage: 89%
capacity: 71.2615%
technology: lithium-polymer
icon-name: 'battery-full-symbolic'
History (charge):
1703876702 89.000 discharging
History (rate):
1703876732 5.953 discharging
1703876702 5.862 discharging
1703876672 6.079 discharging
1703876642 5.663 discharging
Device: /org/freedesktop/UPower/devices/line_power_ucsi_source_psy_USBC000o001
native-path: ucsi-source-psy-USBC000:001
power supply: yes
updated: Fri 29 Dec 2023 06:14:24 PM GMT (3091 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 29 Dec 2023 06:14:24 PM GMT (3091 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: Fri 29 Dec 2023 07:05:32 PM GMT (23 seconds ago)
has history: no
has statistics: no
battery
present: yes
state: discharging
warning-level: none
energy: 15.27 Wh
energy-full: 17.06 Wh
energy-rate: 5.953 W
charge-cycles: N/A
time to empty: 2.6 hours
percentage: 89%
icon-name: 'battery-full-symbolic'
Daemon:
daemon-version: 1.90.2
on-battery: yes
lid-is-closed: no
lid-is-present: yes
critical-action: HybridSleep
Output of `upower -d` with both batteries:
Device: /org/freedesktop/UPower/devices/line_power_AC
native-path: AC
power supply: yes
updated: Fri 29 Dec 2023 07:31:19 PM GMT (197 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/battery_BAT0
native-path: BAT0
vendor: LGC
model: 01AV420
serial: 3964
power supply: yes
updated: Fri 29 Dec 2023 07:34:20 PM GMT (16 seconds ago)
has history: yes
has statistics: yes
battery
present: yes
rechargeable: yes
state: pending-charge
warning-level: none
energy: 15.18 Wh
energy-empty: 0 Wh
energy-full: 17.06 Wh
energy-full-design: 23.94 Wh
energy-rate: 0 W
voltage: 12.292 V
charge-cycles: 18
percentage: 88%
capacity: 71.2615%
technology: lithium-polymer
icon-name: 'battery-full-charging-symbolic'
Device: /org/freedesktop/UPower/devices/battery_BAT1
native-path: BAT1
vendor: SANYO
model: 01AV428
serial: 1025
power supply: yes
updated: Fri 29 Dec 2023 07:34:20 PM GMT (16 seconds ago)
has history: yes
has statistics: yes
battery
present: yes
rechargeable: yes
state: discharging
warning-level: none
energy: 44.63 Wh
energy-empty: 0 Wh
energy-full: 65.94 Wh
energy-full-design: 72.36 Wh
energy-rate: 8.806 W
voltage: 11.378 V
charge-cycles: 115
time to empty: 5.1 hours
percentage: 67%
capacity: 91.1277%
technology: lithium-ion
icon-name: 'battery-full-symbolic'
History (charge):
1703878370 67.000 discharging
History (rate):
1703878460 8.806 discharging
1703878430 6.145 discharging
1703878400 6.572 discharging
1703878370 7.684 discharging
Device: /org/freedesktop/UPower/devices/line_power_ucsi_source_psy_USBC000o001
native-path: ucsi-source-psy-USBC000:001
power supply: yes
updated: Fri 29 Dec 2023 07:31:19 PM GMT (197 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 29 Dec 2023 07:31:19 PM GMT (197 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: Fri 29 Dec 2023 07:34:20 PM GMT (16 seconds ago)
has history: no
has statistics: no
battery
present: yes
state: discharging
warning-level: none
energy: 59.81 Wh
energy-full: 83 Wh
energy-rate: 8.806 W
charge-cycles: N/A
time to empty: 6.8 hours
percentage: 72.0602%
icon-name: 'battery-full-symbolic'
Daemon:
daemon-version: 1.90.2
on-battery: yes
lid-is-closed: no
lid-is-present: yes
critical-action: HybridSleep
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