Bug 505313

Application: dolphin (23.08.5)

Qt Version: 5.15.13
Frameworks Version: 5.115.0
Operating System: Linux 6.11.0-26-generic x86_64
Windowing System: X11
Distribution: Ubuntu 24.04.2 LTS
DrKonqi: 5.27.11 [KCrashBackend]

-- Information about the crash:
Launch any new settings (e.g. right click and select display settings) or apps (e.g. Dolphin, Terminal, Browser, etc) on KDE failed after latest updates when my laptop plugged into Lenovo USB-C hub with external monitors attached.  If I unplug that USB-C hub connection, it won't crash.  It used to work fine before latest updates.

The crash can be reproduced every time.

-- Backtrace:
Application: Dolphin (dolphin), signal: Segmentation fault

[KCrash Handler]
#4  0x0000753913198d54 in QWidget::hide() () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#5  0x000075391330c7fd in ?? () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#6  0x00007539133114a0 in QMenuBar::changeEvent(QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#7  0x00007539131b0dc7 in QWidget::event(QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#8  0x000075391316bd45 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#9  0x00007539124d8118 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007539131a18f0 in QWidgetPrivate::updateFont(QFont const&) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#11 0x00007539131b1858 in QWidget::event(QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#12 0x000075391316bd45 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#13 0x00007539124d8118 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007539131ca5fb in ?? () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#15 0x00007539131ca62a in ?? () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#16 0x00007539131ca70e in ?? () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#17 0x0000753912512dbf in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#18 0x0000753912948f51 in QWindow::screenChanged(QScreen*) () from /lib/x86_64-linux-gnu/libQt5Gui.so.5
#19 0x00007539129497c5 in QWindowPrivate::emitScreenChangedRecursion(QScreen*) () from /lib/x86_64-linux-gnu/libQt5Gui.so.5
#20 0x00007539131a2b13 in QWidgetPrivate::create() () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#21 0x00007539131a2e55 in QWidget::create(unsigned long long, bool, bool) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#22 0x000075391330ee9d in ?? () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#23 0x000075391330f293 in ?? () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#24 0x00007539132cf129 in QMainWindow::menuBar() const () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#25 0x0000753913fe86fd in KXmlGuiWindow::createGUI(QString const&) () from /lib/x86_64-linux-gnu/libKF5XmlGui.so.5
#26 0x0000753913fe90a3 in KXmlGuiWindow::setupGUI(QSize const&, QFlags<KXmlGuiWindow::StandardWindowOption>, QString const&) () from /lib/x86_64-linux-gnu/libKF5XmlGui.so.5
#27 0x0000753913fe91f4 in KXmlGuiWindow::setupGUI(QFlags<KXmlGuiWindow::StandardWindowOption>, QString const&) () from /lib/x86_64-linux-gnu/libKF5XmlGui.so.5
#28 0x000061f9d1eb4bc4 in ?? ()
#29 0x0000753911a2a1ca in __libc_start_call_main (main=main@entry=0x61f9d1eb2c60, argc=argc@entry=1, argv=argv@entry=0x7fff45886078) at ../sysdeps/nptl/libc_start_call_main.h:58
#30 0x0000753911a2a28b in __libc_start_main_impl (main=0x61f9d1eb2c60, argc=1, argv=0x7fff45886078, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff45886068) at ../csu/libc-start.c:360
#31 0x000061f9d1eb5c25 in ?? ()
[Inferior 1 (process 6981) detached]

Reported using DrKonqi