[konsole] [Bug 450591] QT applications crashed after plugging in external display

[Lingfeng Fu]

https://bugs.kde.org/show_bug.cgi?id=450591

--- Comment #2 from Lingfeng Fu <2871618714 at qq.com> ---
Created attachment 152025
  --> https://bugs.kde.org/attachment.cgi?id=152025&action=edit
New crash information added by DrKonqi

konsole (22.08.1) using Qt 5.15.5

Actions taken before the crash:
- Plug in two external monitors , the 1920x1080 one as primary, and the
1440x2560 (vertical) one as secondary ("Extend to left" option in `Super + P`).
- Then log into Plasma (X11), launch any app depending on KDE framework (e.g.,
Konsole, systemsettings5, Dolphin).
- Crash.

Unusual behavior:
- All KDE related standalone apps crash at launch. But the plasma panels,
widgets, and system tray work just fine.

-- Backtrace (Reduced):
#4  QWidget::hide (this=0x7079540a736e6f69) at kernel/qwidget.cpp:7930
#5  0x00007f1df1a9ca85 in QMenuBarPrivate::updateGeometries
(this=0x5566e0099c30) at widgets/qmenubar.cpp:256
#6  0x00007f1df1aa1549 in QMenuBar::changeEvent (this=0x5566e00d1ef0,
e=0x7ffe6af81cc0) at widgets/qmenubar.cpp:1446
#7  0x00007f1df194dc3f in QWidget::event (this=0x5566e00d1ef0,
event=0x7ffe6af81cc0) at kernel/qwidget.cpp:8975
#8  0x00007f1df190c41e in QApplicationPrivate::notify_helper (this=<optimized
out>, receiver=0x5566e00d1ef0, e=0x7ffe6af81cc0) at
kernel/qapplication.cpp:3637

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