https://bugs.kde.org/show_bug.cgi?id=478569
Bug ID: 478569
Summary: Battery widget disagrees with Bluetooth widget about
charge level of trackball
Classification: Plasma
Product: Bluedevil
Version: 5.27.9
Platform: Fedora RPMs
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: system tray
Assignee: plasma-b...@kde.org
Reporter: dschridde+...@mailbox.org
CC: m...@ratijas.tk, now...@gmail.com
Target Milestone: ---
Created attachment 164203
--> https://bugs.kde.org/attachment.cgi?id=164203&action=edit
battery widget screenshot
SUMMARY
My Logitech MX Ergo is connected via Bluetooth. The charge level displayed for
it in the battery systray widget (55%) is different from the charge level
displayed in the Bluetooth systray widget (100%). The battery systray widget is
almost assuredly showing the correct value, because the Bluetooth systray
widget shows 100% always, even after days of using the device.
`upower -d` shows:
```
Device: /org/freedesktop/UPower/devices/battery_hidpp_battery_0
native-path: hidpp_battery_0
model: MX Ergo
serial: [REDACTED]
power supply: no
updated: Fr 15 Dez 2023 18:26:46 CET (22 seconds ago)
has history: yes
has statistics: yes
mouse
present: yes
rechargeable: yes
state: discharging
warning-level: none
battery-level: normal
percentage: 55% (should be ignored)
icon-name: 'battery-low-symbolic'
History (charge):
1702661206 55,000 discharging
1702661206 0,000 unknown
1702661176 55,000 discharging
1702661176 0,000 unknown
1702661146 55,000 discharging
1702661146 0,000 unknown
1702661116 55,000 discharging
1702661116 0,000 unknown
History (rate):
1702661206 0,000 unknown
1702661176 0,000 unknown
1702661146 0,000 unknown
1702661116 0,000 unknown
```
Eventually, after several days, I will get a "low power" notification for the
trackball right after login. Then the Bluetooth widget will still show 100%. I
have not yet checked what the battery widget would display in that case. This
issue with the notification might be related to bug #461602.
STEPS TO REPRODUCE
1. Connect a Logitech MX Ergo trackball via Bluetooth
2. Observe the battery level in the Plasma battery systray widget
3. Observe the battery level in the Plasma Bluetooth systray widget
OBSERVED RESULT
Battery levels disagree between the widgets.
EXPECTED RESULT
Battery levels should be the same.
SOFTWARE/OS VERSIONS
Operating System: Fedora Linux 39
KDE Plasma Version: 5.27.9
KDE Frameworks Version: 5.111.0
Qt Version: 5.15.11
Kernel Version: 6.6.6-200.fc39.x86_64 (64-bit)
Graphics Platform: Wayland
Processors: 8 × 11th Gen Intel® Core™ i7-11370H @ 3.30GHz
Memory: 62,5 GiB of RAM
Graphics Processor: Mesa Intel® Xe Graphics
Manufacturer: TUXEDO
Product Name: TUXEDO InfinityBook Pro 14 Gen6
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