Bug 511486 - Dolphin chrashes when application style is changed from kvantum-dark to Breeze, while Dolphin is still open
Summary: Dolphin chrashes when application style is changed from kvantum-dark to Breez...
Status: RESOLVED UNMAINTAINED
Alias: None
Product: dolphin
Classification: Applications
Component: general (other bugs)
Version First Reported In: 23.08.5
Platform: Compiled Sources Linux
: NOR crash
Target Milestone: ---
Assignee: Dolphin Bug Assignee
URL:
Keywords: drkonqi
Depends on:
Blocks:
 
Reported: 2025-11-01 21:36 UTC by enshroudedshrewintheshrubbery
Modified: 2025-11-13 22:57 UTC (History)
2 users (show)

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Latest Commit:
Version Fixed/Implemented In:
Sentry Crash Report:

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Description enshroudedshrewintheshrubbery 2025-11-01 21:36:55 UTC 
Application: dolphin (23.08.5)
 (Compiled from sources)
Qt Version: 5.15.13
Frameworks Version: 5.115.0
Operating System: Linux 6.8.0-87-generic x86_64
Windowing System: X11
Distribution: Ubuntu 24.04.3 LTS
DrKonqi: 5.27.11 [KCrashBackend]

-- Information about the crash:
I did install Kvantum Manager https://github.com/tsujan/Kvantum/blob/master/Kvantum/INSTALL.md a couple of days ago, according to the installation procedure for Debian-based distributions.
Instead of sudo apt install qt6-style-kvantum qt6-style-kvantum-themes I installed sudo apt install 5t6-style-kvantum qt5-style-kvantum-themes.

Today I wanted to change the Application Style from my current "kvantum-dark" back to the default Breeze, which fits better to my Breeze Dark theme.

After changing the style, while Dolphin was still open, Dolphin crashed.

The crash does not seem to be reproducible.

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

[KCrash Handler]
#4  0x00007845ca3060d8 in QObject::event(QEvent*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007845cc51a409 in KItemListView::paint(QPainter*, QStyleOptionGraphicsItem const*, QWidget*) () from /lib/x86_64-linux-gnu/libdolphinprivate.so.5
#6  0x00007845cb2b9d28 in ?? () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#7  0x00007845cb2cf6bc in ?? () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#8  0x00007845cb2cfd2f in ?? () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#9  0x00007845cb2d07ba in ?? () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#10 0x00007845cb2f64a6 in QGraphicsView::paintEvent(QPaintEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#11 0x00007845cafb0df8 in QWidget::event(QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#12 0x00007845cb062647 in QFrame::event(QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#13 0x00007845ca2d7e82 in QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007845caf6bd35 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#15 0x00007845ca2d8118 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#16 0x00007845cafa8aee in QWidgetPrivate::sendPaintEvent(QRegion const&) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#17 0x00007845cafa94a9 in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, QFlags<QWidgetPrivate::DrawWidgetFlag>, QPainter*, QWidgetRepaintManager*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#18 0x00007845cafaa91d in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, QFlags<QWidgetPrivate::DrawWidgetFlag>, QPainter*, QWidgetRepaintManager*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#19 0x00007845cafa90c3 in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, QFlags<QWidgetPrivate::DrawWidgetFlag>, QPainter*, QWidgetRepaintManager*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#20 0x00007845cafaa91d in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, QFlags<QWidgetPrivate::DrawWidgetFlag>, QPainter*, QWidgetRepaintManager*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#21 0x00007845cafaa770 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, QFlags<QWidgetPrivate::DrawWidgetFlag>, QPainter*, QWidgetRepaintManager*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#22 0x00007845cafaa770 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, QFlags<QWidgetPrivate::DrawWidgetFlag>, QPainter*, QWidgetRepaintManager*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#23 0x00007845cafa90c3 in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, QFlags<QWidgetPrivate::DrawWidgetFlag>, QPainter*, QWidgetRepaintManager*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#24 0x00007845cafaa91d in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, QFlags<QWidgetPrivate::DrawWidgetFlag>, QPainter*, QWidgetRepaintManager*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#25 0x00007845cafa90c3 in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, QFlags<QWidgetPrivate::DrawWidgetFlag>, QPainter*, QWidgetRepaintManager*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#26 0x00007845cafaa91d in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, QFlags<QWidgetPrivate::DrawWidgetFlag>, QPainter*, QWidgetRepaintManager*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#27 0x00007845cafa90c3 in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, QFlags<QWidgetPrivate::DrawWidgetFlag>, QPainter*, QWidgetRepaintManager*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#28 0x00007845cafaa91d in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, QFlags<QWidgetPrivate::DrawWidgetFlag>, QPainter*, QWidgetRepaintManager*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#29 0x00007845cafa90c3 in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, QFlags<QWidgetPrivate::DrawWidgetFlag>, QPainter*, QWidgetRepaintManager*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#30 0x00007845cafaa91d in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, QFlags<QWidgetPrivate::DrawWidgetFlag>, QPainter*, QWidgetRepaintManager*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#31 0x00007845cafa90c3 in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, QFlags<QWidgetPrivate::DrawWidgetFlag>, QPainter*, QWidgetRepaintManager*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#32 0x00007845cafaa91d in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, QFlags<QWidgetPrivate::DrawWidgetFlag>, QPainter*, QWidgetRepaintManager*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#33 0x00007845cafa90c3 in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, QFlags<QWidgetPrivate::DrawWidgetFlag>, QPainter*, QWidgetRepaintManager*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#34 0x00007845cafaa91d in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, QFlags<QWidgetPrivate::DrawWidgetFlag>, QPainter*, QWidgetRepaintManager*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#35 0x00007845cafa90c3 in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, QFlags<QWidgetPrivate::DrawWidgetFlag>, QPainter*, QWidgetRepaintManager*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#36 0x00007845cafaa91d in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, QFlags<QWidgetPrivate::DrawWidgetFlag>, QPainter*, QWidgetRepaintManager*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#37 0x00007845cafa90c3 in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, QFlags<QWidgetPrivate::DrawWidgetFlag>, QPainter*, QWidgetRepaintManager*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#38 0x00007845caf7ddc8 in ?? () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#39 0x00007845cafb146c in QWidget::event(QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#40 0x00007845cbcc850f in KXmlGuiWindow::event(QEvent*) () from /lib/x86_64-linux-gnu/libKF5XmlGui.so.5
#41 0x00007845caf6bd45 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#42 0x00007845ca2d8118 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#43 0x00007845ca2db94b in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#44 0x00007845cb2c1731 in ?? () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#45 0x00007845ca306343 in QObject::event(QEvent*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#46 0x00007845caf6bd45 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#47 0x00007845ca2d8118 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#48 0x00007845ca2db94b in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#49 0x00007845ca335c0f in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#50 0x00007845c7f145c5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#51 0x00007845c7f73737 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#52 0x00007845c7f13a63 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#53 0x00007845ca335279 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#54 0x00007845ca2d6a7b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#55 0x00007845ca2df3e8 in QCoreApplication::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#56 0x000059dc1556847a in ?? ()
#57 0x00007845c982a1ca in __libc_start_call_main (main=main@entry=0x59dc15565c60, argc=argc@entry=4, argv=argv@entry=0x7ffe90a6ffa8) at ../sysdeps/nptl/libc_start_call_main.h:58
#58 0x00007845c982a28b in __libc_start_main_impl (main=0x59dc15565c60, argc=4, argv=0x7ffe90a6ffa8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffe90a6ff98) at ../csu/libc-start.c:360
#59 0x000059dc15568c25 in ?? ()
[Inferior 1 (process 23562) detached]

Reported using DrKonqi
Comment 1 TraceyC 2025-11-13 22:57:51 UTC 
Hi, I'm afraid Dolphin 23.08.5 no longer receives updates or maintenance from KDE; active versions are 25.08.3 or newer. Please upgrade to an active version as soon as your distribution makes it available to you, or use other application distribution methods such as Flathub. Dolphin is a fast-moving project, and bugs in one version are often fixed in the next one.

 If you need support for Dolphin 23.08.5, please contact your distribution, who bears the responsibility of providing help for older releases that are no longer receiving updates from KDE.

If this issue is still reproducible in a supported version of Dolphin, feel free to re-open this bug report.

Thanks for understanding!