Application: plasma-discover (5.21.5) Qt Version: 5.15.2 Frameworks Version: 5.83.0 Operating System: Linux 5.12.11-300.fc34.x86_64 x86_64 Windowing System: X11 Drkonqi Version: 5.22.2 Distribution: Fedora 34 (Workstation Edition) -- Information about the crash: - What I was doing when the application crashed: I was by mistake installing a radeon driver on a computer equiped by nvdia (equiped) :[[[? - Unusual behavior I noticed: Can only navigate and run program : The crash can be reproduced every time. -- Backtrace: Application: Discover (plasma-discover), signal: Segmentation fault [KCrash Handler] #4 0x00007fbf8f1a2c65 in chameleon::ChameleonStyle::drawControl(QStyle::ControlElement, QStyleOption const*, QPainter*, QWidget const*) const () from /usr/lib64/qt5/plugins/styles/libchameleon.so #5 0x00007fbf8f1ad721 in chameleon::ChameleonStyle::drawComplexControl(QStyle::ComplexControl, QStyleOptionComplex const*, QPainter*, QWidget const*) const () from /usr/lib64/qt5/plugins/styles/libchameleon.so #6 0x00007fbf840d6bd8 in KQuickStyleItem::updatePolish() () from /usr/lib64/qt5/qml/org/kde/qqc2desktopstyle/private/libqqc2desktopstyleplugin.so #7 0x00007fbfa48cb75c in QQuickWindowPrivate::polishItems() () from /lib64/libQt5Quick.so.5 #8 0x00007fbfa48645e0 in QSGGuiThreadRenderLoop::renderWindow(QQuickWindow*) () from /lib64/libQt5Quick.so.5 #9 0x00007fbfa4865843 in QSGGuiThreadRenderLoop::exposureChanged(QQuickWindow*) () from /lib64/libQt5Quick.so.5 #10 0x00007fbfa3225ed5 in QWindow::event(QEvent*) () from /lib64/libQt5Gui.so.5 #11 0x00007fbfa3d21e73 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib64/libQt5Widgets.so.5 #12 0x00007fbfa2ddff48 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib64/libQt5Core.so.5 #13 0x00007fbfa321bff5 in QGuiApplicationPrivate::processExposeEvent(QWindowSystemInterfacePrivate::ExposeEvent*) () from /lib64/libQt5Gui.so.5 #14 0x00007fbfa31fc4fc in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Gui.so.5 #15 0x00007fbf909074ce in xcbSourceDispatch(_GSource*, int (*)(void*), void*) () from /lib64/libQt5XcbQpa.so.5 #16 0x00007fbfa13b24cf in g_main_context_dispatch () from /lib64/libglib-2.0.so.0 #17 0x00007fbfa14064e8 in g_main_context_iterate.constprop () from /lib64/libglib-2.0.so.0 #18 0x00007fbfa13afc03 in g_main_context_iteration () from /lib64/libglib-2.0.so.0 #19 0x00007fbfa2e2c6f8 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5 #20 0x00007fbfa2dde9b2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5 #21 0x00007fbfa2de6544 in QCoreApplication::exec() () from /lib64/libQt5Core.so.5 #22 0x00005582598cd6cb in main () [Inferior 1 (process 5608) detached] Reported using DrKonqi
This is a crash in the application style you are using #4 0x00007fbf8f1a2c65 in chameleon::ChameleonStyle::drawControl #5 0x00007fbf8f1ad721 in chameleon::ChameleonStyle::drawComplexControl
This bug with using the chameleon style has been solved now: https://github.com/linuxdeepin/qt5integration/issues/49 The problem was apparently not in the chameleon style, but in the associated dde-qt5integration. I've tested it with dde-qt5integration 5.5.17, and it does not crash any more. Following the comments in the bug report, it has been solved since dde-qt5integration 5.1.0.13.