https://bugs.kde.org/show_bug.cgi?id=458609
Bug ID: 458609
Summary: Solid crashes (asserts) on when first connecting
Apple's Magic Mouse
Product: frameworks-solid
Version: 5.97.0
Platform: Ubuntu Packages
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: unassigned-b...@kde.org
Reporter: isma...@gmail.com
CC: kdelibs-b...@kde.org, lu...@kde.org
Target Milestone: ---
Created attachment 151770
--> https://bugs.kde.org/attachment.cgi?id=151770&action=edit
Backtrace
SUMMARY
When first connecting an Apple's Magic Mouse via bluetooth, plasmashell process
crashes (asserts when compiled on debug mode)
Backtrace leads to Solid triggering an ASSERT on
Solid::DeviceManagerPrivate::_k_deviceRemoved:
(src/solid/devices/frontend/devicemanager.cpp:234)
Q_ASSERT(dev->backendObject() != nullptr);
Note that the magic mouse driver probably provokes some unexpected operations
on UPower that triggers the assertion, where it first adds and removes a
"dummy" battery device with no path, before adding the definitive one. This
only happens the first time that the mouse is connected.
STEPS TO REPRODUCE
1. Run a plasma session compiled on debug mode (ideally from power-on)
2. Connect a Apple's Magic Mouse
OBSERVED RESULT
Plasmashell process crashes
SOFTWARE/OS VERSIONS
Operating System: Kubuntu 22.04
KDE Plasma Version: 5.24.80
KDE Frameworks Version: 5.98.0
Qt Version: 5.15.3
Kernel Version: 5.15.0-46-generic (64-bit)
Graphics Platform: X11
Processors: 8 × Intel® Core™ i7-8565U CPU @ 1.80GHz
Memory: 15.3 GiB of RAM
Graphics Processor: Mesa Intel® UHD Graphics 620
ADDITIONAL INFORMATION
This is the output of:
> upower --monitor-detail
> /org/freedesktop/UPower/devices/mouse_hid_0coe4o41o0aobbo8b_battery
upower --monitor-detail
/org/freedesktop/UPower/devices/mouse_hid_0coe4o41o0aobbo8b_battery
Monitoring activity from the power daemon. Press Ctrl+C to cancel.
[22:47:57.526] device added:
/org/freedesktop/UPower/devices/mouse_hid_0coe4o41o0aobbo8b_battery
native-path: (null)
power supply: no
updated: jue 01 ene 1970 01:00:00 (1657831677 seconds ago)
has history: no
has statistics: no
unknown
warning-level: unknown
battery-level: unknown
percentage: 0% (should be ignored)
icon-name: '(null)'
[22:47:57.526] device removed:
/org/freedesktop/UPower/devices/mouse_hid_0coe4o41o0aobbo8b_battery
[22:47:57.564] device added:
/org/freedesktop/UPower/devices/mouse_hid_0coe4o41o0aobbo8b_battery
native-path: hid-0c:e4:41:0a:bb:8b-battery
model: Magic Mouse 2
power supply: no
updated: jue 14 jul 2022 22:47:57 (0 seconds ago)
has history: yes
has statistics: yes
mouse
present: yes
rechargeable: yes
state: discharging
warning-level: none
percentage: 50%
icon-name: 'battery-good-symbolic'
History (charge):
1657831677 50,000 discharging
1657831677 0,000 unknown
1657831677 50,000 discharging
1657831677 0,000 unknown
History (rate):
1657831677 0,000 unknown
1657831677 0,000 unknown
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