Bug 417629

Summary: Changing theme causes crash of System Settings.
Product: [Applications] systemsettings Reporter: Karol Bryd <karolbe>
Component: generalAssignee: Plasma Bugs List <plasma-bugs>
Status: RESOLVED DOWNSTREAM    
Severity: crash CC: kde, kde
Priority: NOR Keywords: drkonqi
Version: 5.18.0   
Target Milestone: ---   
Platform: openSUSE   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:

Description Karol Bryd 2020-02-14 12:09:20 UTC 
Application: systemsettings5 (5.18.0)

Qt Version: 5.14.1
Frameworks Version: 5.66.0
Operating System: Linux 5.5.2-1-default x86_64
Windowing system: X11
Distribution: "openSUSE Tumbleweed"

-- Information about the crash:
- What I was doing when the application crashed:

I was trying to change the Plasma Style and theme - double clicking on the icon in panel causes KDE crashes handler to open.
Click on any of the appearance settings causes a crash, other system settings option open as expected.

- Custom settings of the application:

Nothing is really custom, pretty standard openSUSE desktop.

The crash can be reproduced every time.

-- Backtrace:
Application: System Settings (systemsettings5), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fbae2e84800 (LWP 3939))]

Thread 28 (Thread 0x7fba852ea700 (LWP 3984)):
#0  0x00007fbae43096a5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fbad928adeb in ?? () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fbad928acc7 in ?? () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fbae4302f2a in start_thread () from /lib64/libpthread.so.0
#4  0x00007fbae720b38f in clone () from /lib64/libc.so.6

Thread 27 (Thread 0x7fba865a3700 (LWP 3983)):
#0  0x00007fbae43096a5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fbad928adeb in ?? () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fbad928acc7 in ?? () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fbae4302f2a in start_thread () from /lib64/libpthread.so.0
#4  0x00007fbae720b38f in clone () from /lib64/libc.so.6

Thread 26 (Thread 0x7fba877fe700 (LWP 3980)):
#0  0x00007fbae71fc4ec in read () from /lib64/libc.so.6
#1  0x00007fbae395f1df in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007fbae3917e47 in g_main_context_check () from /usr/lib64/libglib-2.0.so.0
#3  0x00007fbae3918292 in ?? () from /usr/lib64/libglib-2.0.so.0
#4  0x00007fbae391840f in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#5  0x00007fbae5b3fc6b in QEventDispatcherGlib::processEvents (this=0x7fba60000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#6  0x00007fbae5ae7bfb in QEventLoop::exec (this=this@entry=0x7fba877fdd80, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:136
#7  0x00007fbae591262e in QThread::exec (this=this@entry=0x5614639c5c20) at ../../include/QtCore/../../src/corelib/global/qflags.h:118
#8  0x00007fbae4dad6e5 in QQmlThreadPrivate::run (this=0x5614639c5c20) at /usr/src/debug/libqt5-qtdeclarative-5.14.1-1.3.x86_64/src/qml/qml/ftw/qqmlthread.cpp:155
#9  0x00007fbae59136f8 in QThreadPrivate::start (arg=0x5614639c5c20) at thread/qthread_unix.cpp:342
#10 0x00007fbae4302f2a in start_thread () from /lib64/libpthread.so.0
#11 0x00007fbae720b38f in clone () from /lib64/libc.so.6

Thread 25 (Thread 0x7fba87fff700 (LWP 3964)):
#0  0x00007fbae43096a5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fbad928adeb in ?? () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fbad928acc7 in ?? () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fbae4302f2a in start_thread () from /lib64/libpthread.so.0
#4  0x00007fbae720b38f in clone () from /lib64/libc.so.6

Thread 24 (Thread 0x7fbaacff9700 (LWP 3963)):
#0  0x00007fbae43096a5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fbad928adeb in ?? () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fbad928acc7 in ?? () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fbae4302f2a in start_thread () from /lib64/libpthread.so.0
#4  0x00007fbae720b38f in clone () from /lib64/libc.so.6

Thread 23 (Thread 0x7fbaad7fa700 (LWP 3962)):
#0  0x00007fbae43096a5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fbad928adeb in ?? () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fbad928acc7 in ?? () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fbae4302f2a in start_thread () from /lib64/libpthread.so.0
#4  0x00007fbae720b38f in clone () from /lib64/libc.so.6

Thread 22 (Thread 0x7fbaadffb700 (LWP 3961)):
#0  0x00007fbae43096a5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fbad928adeb in ?? () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fbad928acc7 in ?? () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fbae4302f2a in start_thread () from /lib64/libpthread.so.0
#4  0x00007fbae720b38f in clone () from /lib64/libc.so.6

Thread 21 (Thread 0x7fbaaeffd700 (LWP 3960)):
#0  0x00007fbae43096a5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fbad928adeb in ?? () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fbad928acc7 in ?? () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fbae4302f2a in start_thread () from /lib64/libpthread.so.0
#4  0x00007fbae720b38f in clone () from /lib64/libc.so.6

Thread 20 (Thread 0x7fbaaf7fe700 (LWP 3959)):
#0  0x00007fbae43096a5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fbad928adeb in ?? () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fbad928acc7 in ?? () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fbae4302f2a in start_thread () from /lib64/libpthread.so.0
#4  0x00007fbae720b38f in clone () from /lib64/libc.so.6

Thread 19 (Thread 0x7fbaaffff700 (LWP 3958)):
#0  0x00007fbae43096a5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fbad928adeb in ?? () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fbad928acc7 in ?? () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fbae4302f2a in start_thread () from /lib64/libpthread.so.0
#4  0x00007fbae720b38f in clone () from /lib64/libc.so.6

Thread 18 (Thread 0x7fbab4ff9700 (LWP 3957)):
#0  0x00007fbae43096a5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fbad928adeb in ?? () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fbad928acc7 in ?? () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fbae4302f2a in start_thread () from /lib64/libpthread.so.0
#4  0x00007fbae720b38f in clone () from /lib64/libc.so.6

Thread 17 (Thread 0x7fbab57fa700 (LWP 3956)):
#0  0x00007fbae43096a5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fbad928adeb in ?? () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fbad928acc7 in ?? () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fbae4302f2a in start_thread () from /lib64/libpthread.so.0
#4  0x00007fbae720b38f in clone () from /lib64/libc.so.6

Thread 16 (Thread 0x7fbab5ffb700 (LWP 3955)):
#0  0x00007fbae43096a5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fbad928adeb in ?? () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fbad928acc7 in ?? () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fbae4302f2a in start_thread () from /lib64/libpthread.so.0
#4  0x00007fbae720b38f in clone () from /lib64/libc.so.6

Thread 15 (Thread 0x7fbab67fc700 (LWP 3954)):
#0  0x00007fbae43096a5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fbad928adeb in ?? () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fbad928acc7 in ?? () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fbae4302f2a in start_thread () from /lib64/libpthread.so.0
#4  0x00007fbae720b38f in clone () from /lib64/libc.so.6

Thread 14 (Thread 0x7fbaae7fc700 (LWP 3953)):
#0  0x00007fbae43096a5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fbad928adeb in ?? () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fbad928acc7 in ?? () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fbae4302f2a in start_thread () from /lib64/libpthread.so.0
#4  0x00007fbae720b38f in clone () from /lib64/libc.so.6

Thread 13 (Thread 0x7fbab6ffd700 (LWP 3952)):
#0  0x00007fbae43096a5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fbad928adeb in ?? () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fbad928acc7 in ?? () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fbae4302f2a in start_thread () from /lib64/libpthread.so.0
#4  0x00007fbae720b38f in clone () from /lib64/libc.so.6

Thread 12 (Thread 0x7fbab77fe700 (LWP 3951)):
#0  0x00007fbae43096a5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fbad928adeb in ?? () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fbad928acc7 in ?? () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fbae4302f2a in start_thread () from /lib64/libpthread.so.0
#4  0x00007fbae720b38f in clone () from /lib64/libc.so.6

Thread 11 (Thread 0x7fbab7fff700 (LWP 3950)):
#0  0x00007fbae43096a5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fbad928adeb in ?? () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fbad928acc7 in ?? () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fbae4302f2a in start_thread () from /lib64/libpthread.so.0
#4  0x00007fbae720b38f in clone () from /lib64/libc.so.6

Thread 10 (Thread 0x7fbaccd95700 (LWP 3949)):
#0  0x00007fbae43096a5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fbad928adeb in ?? () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fbad928acc7 in ?? () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fbae4302f2a in start_thread () from /lib64/libpthread.so.0
#4  0x00007fbae720b38f in clone () from /lib64/libc.so.6

Thread 9 (Thread 0x7fbacd596700 (LWP 3948)):
#0  0x00007fbae43096a5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fbad928adeb in ?? () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fbad928acc7 in ?? () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fbae4302f2a in start_thread () from /lib64/libpthread.so.0
#4  0x00007fbae720b38f in clone () from /lib64/libc.so.6

Thread 8 (Thread 0x7fbacdd97700 (LWP 3947)):
#0  0x00007fbae43096a5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fbad928adeb in ?? () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fbad928acc7 in ?? () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fbae4302f2a in start_thread () from /lib64/libpthread.so.0
#4  0x00007fbae720b38f in clone () from /lib64/libc.so.6

Thread 7 (Thread 0x7fbace598700 (LWP 3946)):
#0  0x00007fbae43096a5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fbad928adeb in ?? () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fbad928acc7 in ?? () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fbae4302f2a in start_thread () from /lib64/libpthread.so.0
#4  0x00007fbae720b38f in clone () from /lib64/libc.so.6

Thread 6 (Thread 0x7fbaced99700 (LWP 3945)):
#0  0x00007fbae43096a5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fbad928adeb in ?? () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fbad928acc7 in ?? () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fbae4302f2a in start_thread () from /lib64/libpthread.so.0
#4  0x00007fbae720b38f in clone () from /lib64/libc.so.6

Thread 5 (Thread 0x7fbacf59a700 (LWP 3944)):
#0  0x00007fbae43096a5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fbad928adeb in ?? () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fbad928acc7 in ?? () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fbae4302f2a in start_thread () from /lib64/libpthread.so.0
#4  0x00007fbae720b38f in clone () from /lib64/libc.so.6

Thread 4 (Thread 0x7fbad8ab7700 (LWP 3943)):
#0  0x00007fbae43096a5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fbad928adeb in ?? () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fbad928acc7 in ?? () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fbae4302f2a in start_thread () from /lib64/libpthread.so.0
#4  0x00007fbae720b38f in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7fbadb8d3700 (LWP 3942)):
#0  0x00007fbae7200abf in poll () from /lib64/libc.so.6
#1  0x00007fbae39182ee in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007fbae391840f in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#3  0x00007fbae5b3fc6b in QEventDispatcherGlib::processEvents (this=0x7fbad4000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007fbae5ae7bfb in QEventLoop::exec (this=this@entry=0x7fbadb8d2d70, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:136
#5  0x00007fbae591262e in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:118
#6  0x00007fbae49f3507 in ?? () from /usr/lib64/libQt5DBus.so.5
#7  0x00007fbae59136f8 in QThreadPrivate::start (arg=0x7fbae4a75da0) at thread/qthread_unix.cpp:342
#8  0x00007fbae4302f2a in start_thread () from /lib64/libpthread.so.0
#9  0x00007fbae720b38f in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7fbae0de2700 (LWP 3941)):
#0  0x00007fbae7200abf in poll () from /lib64/libc.so.6
#1  0x00007fbae42d2752 in ?? () from /usr/lib64/libxcb.so.1
#2  0x00007fbae42d340a in xcb_wait_for_event () from /usr/lib64/libxcb.so.1
#3  0x00007fbae0fd9ab0 in QXcbEventQueue::run (this=0x561463220e50) at qxcbeventqueue.cpp:228
#4  0x00007fbae59136f8 in QThreadPrivate::start (arg=0x561463220e50) at thread/qthread_unix.cpp:342
#5  0x00007fbae4302f2a in start_thread () from /lib64/libpthread.so.0
#6  0x00007fbae720b38f in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7fbae2e84800 (LWP 3939)):
[KCrash Handler]
#6  0x00007fbae66c02d9 in QPixmapStyle::drawControl (this=0x5614632bea10, element=QStyle::CE_ShapedFrame, option=0x561463fa1200, painter=0x7ffdcacbc4a8, widget=0x0) at styles/qpixmapstyle.cpp:315
#7  0x00007fbadbf9557c in QBB10BrightStyle::drawControl (this=0x5614632bea10, element=<optimized out>, option=0x561463fa1200, painter=0x7ffdcacbc4a8, widget=<optimized out>) at qbb10brightstyle.cpp:321
#8  0x00007fba8674ae0f in KQuickStyleItem::paint (painter=0x7ffdcacbc4a8, this=0x561463f9ebc0) at /usr/src/debug/qqc2-desktop-style-5.66.0-1.3.x86_64/plugin/kquickstyleitem.cpp:64
#9  KQuickStyleItem::updatePolish (this=0x561463f9ebc0) at /usr/src/debug/qqc2-desktop-style-5.66.0-1.3.x86_64/plugin/kquickstyleitem.cpp:1794
#10 0x00007fbae517fca3 in QQuickWindowPrivate::polishItems (this=this@entry=0x561464248060) at /usr/src/debug/libqt5-qtdeclarative-5.14.1-1.3.x86_64/src/quick/items/qquickwindow.cpp:316
#11 0x00007fbae524627e in QQuickRenderControl::polishItems (this=<optimized out>) at /usr/src/debug/libqt5-qtdeclarative-5.14.1-1.3.x86_64/src/quick/items/qquickrendercontrol.cpp:277
#12 0x00007fbae549e075 in QQuickWidgetPrivate::render (this=0x561463c76a40, needsSync=<optimized out>) at /usr/src/debug/libqt5-qtdeclarative-5.14.1-1.3.x86_64/src/quickwidgets/qquickwidget.cpp:303
#13 0x00007fbae54a0f5b in QQuickWidget::resizeEvent (this=0x5614639d6230, e=<optimized out>) at /usr/src/debug/libqt5-qtdeclarative-5.14.1-1.3.x86_64/src/quickwidgets/qquickwidget.cpp:1255
#14 0x00007fbae6633c4f in QWidget::event (this=this@entry=0x5614639d6230, event=event@entry=0x7ffdcacbcab0) at kernel/qwidget.cpp:8816
#15 0x00007fbae54a1de3 in QQuickWidget::event (this=0x5614639d6230, e=0x7ffdcacbcab0) at /usr/src/debug/libqt5-qtdeclarative-5.14.1-1.3.x86_64/src/quickwidgets/qquickwidget.cpp:1551
#16 0x00007fbae65f0caf in QApplicationPrivate::notify_helper (this=this@entry=0x5614631f6f50, receiver=receiver@entry=0x5614639d6230, e=e@entry=0x7ffdcacbcab0) at kernel/qapplication.cpp:3684
#17 0x00007fbae65f9df0 in QApplication::notify (this=0x7ffdcacbea20, receiver=0x5614639d6230, e=0x7ffdcacbcab0) at kernel/qapplication.cpp:3430
#18 0x00007fbae5ae9062 in QCoreApplication::notifyInternal2 (receiver=0x5614639d6230, event=0x7ffdcacbcab0) at ../../include/QtCore/../../src/corelib/kernel/qobject.h:153
#19 0x00007fbae662bb86 in QWidgetPrivate::sendPendingMoveAndResizeEvents (this=this@entry=0x561463c76a40, recursive=recursive@entry=false, disableUpdates=<optimized out>, disableUpdates@entry=false) at kernel/qwidget.cpp:7725
#20 0x00007fbae662ff83 in QWidgetPrivate::show_helper (this=this@entry=0x561463c76a40) at kernel/qwidget.cpp:7776
#21 0x00007fbae6633093 in QWidgetPrivate::setVisible (this=0x561463c76a40, visible=<optimized out>) at kernel/qwidget.cpp:8125
#22 0x00007fbae662ff09 in QWidgetPrivate::showChildren (this=this@entry=0x5614639db650, spontaneous=spontaneous@entry=false) at kernel/qwidget.cpp:8195
#23 0x00007fbae662ff9f in QWidgetPrivate::show_helper (this=this@entry=0x5614639db650) at kernel/qwidget.cpp:7782
#24 0x00007fbae6633093 in QWidgetPrivate::setVisible (this=0x5614639db650, visible=<optimized out>) at kernel/qwidget.cpp:8125
#25 0x00007fbae662ff09 in QWidgetPrivate::showChildren (this=this@entry=0x5614635dfc60, spontaneous=spontaneous@entry=false) at kernel/qwidget.cpp:8195
#26 0x00007fbae662ff9f in QWidgetPrivate::show_helper (this=0x5614635dfc60) at kernel/qwidget.cpp:7782
#27 0x00007fbae662fd9b in QWidgetPrivate::show_recursive (this=<optimized out>) at kernel/qwidget.cpp:7706
#28 0x00007fbae662ff29 in QWidgetPrivate::showChildren (this=this@entry=0x5614634c6670, spontaneous=spontaneous@entry=false) at kernel/qwidget.h:132
#29 0x00007fbae662ff9f in QWidgetPrivate::show_helper (this=this@entry=0x5614634c6670) at kernel/qwidget.cpp:7782
#30 0x00007fbae6633093 in QWidgetPrivate::setVisible (this=0x5614634c6670, visible=<optimized out>) at kernel/qwidget.cpp:8125
#31 0x00007fbae662ff09 in QWidgetPrivate::showChildren (this=this@entry=0x561463721290, spontaneous=spontaneous@entry=false) at kernel/qwidget.cpp:8195
#32 0x00007fbae662ff9f in QWidgetPrivate::show_helper (this=this@entry=0x561463721290) at kernel/qwidget.cpp:7782
#33 0x00007fbae6633093 in QWidgetPrivate::setVisible (this=0x561463721290, visible=<optimized out>) at kernel/qwidget.cpp:8125
#34 0x00007fbae6617fe4 in QStackedLayout::setCurrentIndex (this=0x56146349aac0, index=1) at kernel/qstackedlayout.cpp:321
#35 0x00007fbae6618289 in QStackedLayout::setCurrentWidget (this=0x56146349aac0, widget=widget@entry=0x561463579660) at kernel/qstackedlayout.cpp:376
#36 0x00007fbae67a4225 in QStackedWidget::setCurrentWidget (this=<optimized out>, widget=widget@entry=0x561463579660) at widgets/qstackedwidget.cpp:248
#37 0x00007fbae6dd43a3 in KPageViewPrivate::_k_pageSelected (previous=..., index=..., this=0x5614634d5bb0) at /usr/src/debug/kwidgetsaddons-5.66.0-1.3.x86_64/src/kpageview.cpp:264
#38 KPageViewPrivate::_k_pageSelected (previous=..., index=..., this=0x5614634d5bb0) at /usr/src/debug/kwidgetsaddons-5.66.0-1.3.x86_64/src/kpageview.cpp:238
#39 KPageView::qt_static_metacall (_o=<optimized out>, _id=<optimized out>, _a=<optimized out>, _c=<optimized out>) at /usr/src/debug/kwidgetsaddons-5.66.0-1.3.x86_64/build/src/KF5WidgetsAddons_autogen/include/moc_kpageview.cpp:119
#40 0x00007fbae5b1da90 in doActivate<false> (sender=0x5614635b8150, signal_index=3, argv=0x7ffdcacbd2e0) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:391
#41 0x00007fbae5b1821f in QMetaObject::activate (sender=sender@entry=0x5614635b8150, m=m@entry=0x7fbae5daa160 <QItemSelectionModel::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffdcacbd2e0) at kernel/qobject.cpp:3930
#42 0x00007fbae5a9b690 in QItemSelectionModel::selectionChanged (this=this@entry=0x5614635b8150, _t1=..., _t2=...) at .moc/moc_qitemselectionmodel.cpp:459
#43 0x00007fbae5aa0c72 in QItemSelectionModel::emitSelectionChanged (this=0x5614635b8150, newSelection=..., oldSelection=...) at itemmodels/qitemselectionmodel.cpp:1872
#44 0x00007fbae5aa42c2 in QItemSelectionModel::select (this=0x5614635b8150, selection=..., command=...) at itemmodels/qitemselectionmodel.cpp:1338
#45 0x00007fbae5a9d993 in QItemSelectionModel::select (command=..., index=..., this=0x5614635b8150) at itemmodels/qitemselectionmodel.cpp:1188
#46 QItemSelectionModel::setCurrentIndex (this=this@entry=0x5614635b8150, index=..., command=command@entry=...) at itemmodels/qitemselectionmodel.cpp:1413
#47 0x00007fbae6dd45e8 in KPageViewPrivate::updateSelection (this=0x5614634d5bb0) at /usr/include/qt5/QtCore/qabstractitemmodel.h:60
#48 KPageViewPrivate::updateSelection (this=0x5614634d5bb0) at /usr/src/debug/kwidgetsaddons-5.66.0-1.3.x86_64/src/kpageview.cpp:112
#49 KPageViewPrivate::_k_modelChanged (this=0x5614634d5bb0) at /usr/src/debug/kwidgetsaddons-5.66.0-1.3.x86_64/src/kpageview.cpp:235
#50 KPageView::qt_static_metacall (_o=<optimized out>, _id=<optimized out>, _a=<optimized out>, _c=<optimized out>) at /usr/src/debug/kwidgetsaddons-5.66.0-1.3.x86_64/build/src/KF5WidgetsAddons_autogen/include/moc_kpageview.cpp:118
#51 0x00007fbae5b1da90 in doActivate<false> (sender=0x56146349b260, signal_index=6, argv=0x7ffdcacbd6a0) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:391
#52 0x00007fbae5b1821f in QMetaObject::activate (sender=sender@entry=0x56146349b260, m=m@entry=0x7fbae5daa060 <QAbstractItemModel::staticMetaObject>, local_signal_index=local_signal_index@entry=3, argv=argv@entry=0x7ffdcacbd6a0) at kernel/qobject.cpp:3930
#53 0x00007fbae5a8ce76 in QAbstractItemModel::layoutChanged (this=this@entry=0x56146349b260, _t1=..., _t2=<optimized out>, _t2@entry=QAbstractItemModel::NoLayoutChangeHint) at .moc/moc_qabstractitemmodel.cpp:571
#54 0x00007fbae6dcc6fc in KPageWidgetModel::addPage (this=0x56146349b260, item=item@entry=0x561463916a60) at /usr/include/qt5/QtCore/qlist.h:160
#55 0x00007fbae6dcc79d in KPageWidget::addPage (this=<optimized out>, item=item@entry=0x561463916a60) at /usr/src/debug/kwidgetsaddons-5.66.0-1.3.x86_64/src/kpagewidget_p.h:35
#56 0x00007fbae7101bc1 in ModuleView::addModule (this=this@entry=0x561463543ca0, module=<optimized out>) at /usr/src/debug/systemsettings5-5.18.0-1.1.x86_64/core/ModuleView.cpp:197
#57 0x00007fbae710325d in ModuleView::loadModule (menuItem=..., this=0x561463543ca0) at /usr/src/debug/systemsettings5-5.18.0-1.1.x86_64/core/ModuleView.cpp:150
#58 ModuleView::loadModule (this=0x561463543ca0, menuItem=...) at /usr/src/debug/systemsettings5-5.18.0-1.1.x86_64/core/ModuleView.cpp:134
#59 0x00007fbae5b1da5e in QtPrivate::QSlotObjectBase::call (a=0x7ffdcacbd940, r=0x56146350a100, this=0x5614635a77c0) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:394
#60 doActivate<false> (sender=0x5614634a15b0, signal_index=10, argv=0x7ffdcacbd940) at kernel/qobject.cpp:3870
#61 0x00007fbae5b1821f in QMetaObject::activate (sender=sender@entry=0x5614634a15b0, m=m@entry=0x7fbae6b0fc40 <QAbstractItemView::staticMetaObject>, local_signal_index=local_signal_index@entry=3, argv=argv@entry=0x7ffdcacbd940) at kernel/qobject.cpp:3930
#62 0x00007fbae6855a15 in QAbstractItemView::activated (this=this@entry=0x5614634a15b0, _t1=...) at .moc/moc_qabstractitemview.cpp:668
#63 0x00007fbae6863fc4 in QAbstractItemView::mouseDoubleClickEvent (this=0x5614634a15b0, event=0x7ffdcacbe110) at itemviews/qabstractitemview.cpp:1968
#64 0x00007fbae6633b73 in QWidget::event (this=this@entry=0x5614634a15b0, event=event@entry=0x7ffdcacbe110) at kernel/qwidget.cpp:8661
#65 0x00007fbae66e205e in QFrame::event (this=0x5614634a15b0, e=0x7ffdcacbe110) at widgets/qframe.cpp:550
#66 0x00007fbae686396e in QAbstractItemView::viewportEvent (this=0x5614634a15b0, event=0x7ffdcacbe110) at itemviews/qabstractitemview.cpp:1754
#67 0x00007fbae5ae8d73 in QCoreApplicationPrivate::sendThroughObjectEventFilters (event=<optimized out>, receiver=<optimized out>) at kernel/qcoreapplication.cpp:1218
#68 QCoreApplicationPrivate::sendThroughObjectEventFilters (receiver=receiver@entry=0x56146349f9d0, event=event@entry=0x7ffdcacbe110) at kernel/qcoreapplication.cpp:1207
#69 0x00007fbae65f0c9e in QApplicationPrivate::notify_helper (this=this@entry=0x5614631f6f50, receiver=receiver@entry=0x56146349f9d0, e=e@entry=0x7ffdcacbe110) at kernel/qapplication.cpp:3678
#70 0x00007fbae65fa043 in QApplication::notify (this=<optimized out>, receiver=0x56146349f9d0, e=0x7ffdcacbe110) at kernel/qapplication.cpp:3128
#71 0x00007fbae5ae9062 in QCoreApplication::notifyInternal2 (receiver=0x56146349f9d0, event=0x7ffdcacbe110) at ../../include/QtCore/../../src/corelib/kernel/qobject.h:153
#72 0x00007fbae65f9123 in QApplicationPrivate::sendMouseEvent (receiver=receiver@entry=0x56146349f9d0, event=event@entry=0x7ffdcacbe110, alienWidget=alienWidget@entry=0x56146349f9d0, nativeWidget=0x561463349ed0, buttonDown=buttonDown@entry=0x7fbae6b209a0 <qt_button_down>, lastMouseReceiver=..., spontaneous=true, onlyDispatchEnterLeave=false) at kernel/qapplication.cpp:2614
#73 0x00007fbae664e5f9 in QWidgetWindow::handleMouseEvent (this=0x5614635684d0, event=0x7ffdcacbe600) at /usr/include/c++/9/bits/atomic_base.h:413
#74 0x00007fbae6651694 in QWidgetWindow::event (event=0x7ffdcacbe600, this=0x5614635684d0) at kernel/qwidgetwindow.cpp:295
#75 QWidgetWindow::event (this=0x5614635684d0, event=0x7ffdcacbe600) at kernel/qwidgetwindow.cpp:238
#76 0x00007fbae65f0caf in QApplicationPrivate::notify_helper (this=this@entry=0x5614631f6f50, receiver=receiver@entry=0x5614635684d0, e=e@entry=0x7ffdcacbe600) at kernel/qapplication.cpp:3684
#77 0x00007fbae65f9df0 in QApplication::notify (this=0x7ffdcacbea20, receiver=0x5614635684d0, e=0x7ffdcacbe600) at kernel/qapplication.cpp:3430
#78 0x00007fbae5ae9062 in QCoreApplication::notifyInternal2 (receiver=0x5614635684d0, event=0x7ffdcacbe600) at ../../include/QtCore/../../src/corelib/kernel/qobject.h:153
#79 0x00007fbae5f00422 in QGuiApplicationPrivate::processMouseEvent (e=e@entry=0x5614635f1ab0) at kernel/qguiapplication.cpp:2253
#80 0x00007fbae5f01b65 in QGuiApplicationPrivate::processWindowSystemEvent (e=e@entry=0x5614635f1ab0) at kernel/qguiapplication.cpp:1941
#81 0x00007fbae5edb53b in QWindowSystemInterface::sendWindowSystemEvents (flags=flags@entry=...) at kernel/qwindowsysteminterface.cpp:1163
#82 0x00007fbae0fdaa6a in xcbSourceDispatch (source=<optimized out>) at qxcbeventdispatcher.cpp:105
#83 0x00007fbae3917ff8 in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#84 0x00007fbae3918380 in ?? () from /usr/lib64/libglib-2.0.so.0
#85 0x00007fbae391840f in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#86 0x00007fbae5b3fc4e in QEventDispatcherGlib::processEvents (this=0x561463340e50, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#87 0x00007fbae5ae7bfb in QEventLoop::exec (this=this@entry=0x7ffdcacbe930, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:136
#88 0x00007fbae5aef9d2 in QCoreApplication::exec () at ../../include/QtCore/../../src/corelib/global/qflags.h:118
#89 0x00005614630919c8 in main (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/systemsettings5-5.18.0-1.1.x86_64/app/main.cpp:70
[Inferior 1 (process 3939) detached]

The reporter indicates this bug may be a duplicate of or related to bug 416691.

Possible duplicates by query: bug 416691, bug 413761, bug 413617.

Reported using DrKonqi
Comment 1 David Edmundson 2020-02-14 12:40:03 UTC 
>qbb10brightstyle

What is this?

Please can you try and identify where this is from for me.

It'll be some installed qstyle
Comment 2 Karol Bryd 2020-02-14 12:50:10 UTC 
Yes, I installed some new themes recently from internet (via the KDE 'downloader'). It was OK until today, this morning I was playing with other themes and all windows lost correct decorations and instead there was just a black border.

To restore I have removed some of KDE settings related to themes (from ~/.config) and all is OK now. Not sure what exactly has happened but clearly you can break your KDE Desktop via System Settings by just changing and adding themes from internet.

I have the old broken config backed up in case you are interested investigating it further. Otherwise please close the ticket.
Comment 3 Kai Uwe Broulik 2020-02-14 13:17:23 UTC 
I'm afraid the styles in qtstyleplugins seem quite outdated and buggy. The bb10 styles just crash all over the place because they never expect `widget` to be null, even though that being the default argument in `drawPrimitive`. I would consider BB10 style (as well as the entire platform - RIP) a lost cause.

The other styles in there, such as CDE, cleanlooks, gtk2, seem to mostly work but also have odd layouting issues at times.