https://bugs.kde.org/show_bug.cgi?id=474209
Bug ID: 474209
Summary: TaskManager becomes unresponsive, shows stale data
Classification: Plasma
Product: plasmashell
Version: 5.27.7
Platform: Archlinux
OS: Linux
Status: REPORTED
Severity: crash
Priority: NOR
Component: Task Manager and Icons-Only Task Manager
Assignee: plasma-b...@kde.org
Reporter: cha...@protonmail.com
CC: qydwhotm...@gmail.com
Target Milestone: 1.0
TaskManager becomes unresponsive, shows stale data
STEPS TO REPRODUCE (not consistent)
1. do some long running/heavy operation on sshfs and NTFS drives on terminal
and dolphin at the same time
2. Dolphin seems busy/unresponsive during the heavy operation
3. swtich tasks from task manager, it hangs. Dolphin eventually recovers.
OBSERVED RESULT
alt+tab works, krunner works, task switching generally works.
Taks manager is generally broken, even the start button(win key), calendar,
volume, network applets(?) are unresponsive
in journalctl i see some errors
```
Sep 06 12:16:46 hostname kwin_x11[1170]: kwin_core: XCB error: 152 (BadDamage),
sequence: 27898, resource id: 16779592, major code: 143 (DAMAGE), minor code: 3
(Subtract)
Sep 06 12:17:16 hostname systemd[1054]:
app-konsole-2fc2fd9026d0468d9081e9618a734266.scope: Consumed 5.644s CPU time.
Sep 06 12:17:22 hostname krunner[1585]: QCommandLineParser: argument list
cannot be empty, it should contain at least the executable name
Sep 06 12:17:22 hostname krunner[1585]: kf.sonnet.core: No language
dictionaries for the language: "en_US"
Sep 06 12:17:25 hostname plasmashell[1250]:
file:///usr/share/plasma/plasmoids/org.kde.plasma.taskmanager/contents/ui/Task.qml:286:
Unable to assign [undefined] to QString
Sep 06 12:17:25 hostname plasmashell[1250]:
file:///usr/share/plasma/plasmoids/org.kde.plasma.taskmanager/contents/ui/Task.qml:286:
Unable to assign [undefined] to QString
```
usr/share/plasma/plasmoids/org.kde.plasma.taskmanager/contents/ui/Task.qml:286
contains
```
286: mainItem.virtualDesktopParent = Qt.binding(() =>
287: (model.VirtualDesktops !== undefined &&
model.VirtualDesktops.length > 0) ? model.VirtualDesktops : [0]);
```
EXPECTED RESULT
No crash
SOFTWARE/OS VERSIONS
Windows:
macOS:
Linux/KDE Plasma:
(available in About System)
KDE Plasma Version: 5.27.7
KDE Frameworks Version: 5.109.0
Qt Version: 5.15.10
ADDITIONAL INFORMATION
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