https://bugs.kde.org/show_bug.cgi?id=403671

            Bug ID: 403671
           Summary: System Settings crashes when entering Display and
                    Monitor
           Product: systemsettings
           Version: unspecified
          Platform: Neon Packages
                OS: Linux
            Status: REPORTED
          Keywords: drkonqi
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: plasma-b...@kde.org
          Reporter: brianabe...@gmail.com
  Target Milestone: ---

Application: systemsettings5 (5.15.80)

Qt Version: 5.11.2
Frameworks Version: 5.54.0
Operating System: Linux 4.20.4-xanmod3 x86_64
Distribution: KDE neon Developer Edition

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

Going into the Display and Monitor section of the settings menu.

The crash can be reproduced every time.

-- Backtrace:
Application: System Settings (systemsettings5), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f76502cf840 (LWP 9860))]

Thread 15 (Thread 0x7f75eecc9700 (LWP 9876)):
#0  0x00007f7646fca9f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x5586ad6f7f20) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x5586ad6f7ed0,
cond=0x5586ad6f7ef8) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x5586ad6f7ef8, mutex=0x5586ad6f7ed0) at
pthread_cond_wait.c:655
#3  0x00007f763346d46b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f763346d197 in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f7646fc46db in start_thread (arg=0x7f75eecc9700) at
pthread_create.c:463
#6  0x00007f764b8c688f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7f75ef786700 (LWP 9875)):
#0  0x00007f7646fca9f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x5586ad586700) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x5586ad5866b0,
cond=0x5586ad5866d8) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x5586ad5866d8, mutex=0x5586ad5866b0) at
pthread_cond_wait.c:655
#3  0x00007f763346d46b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f763346d197 in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f7646fc46db in start_thread (arg=0x7f75ef786700) at
pthread_create.c:463
#6  0x00007f764b8c688f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7f75fbfff700 (LWP 9874)):
#0  0x00007f7646fca9f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x5586ad208dd4) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x5586ad208d80,
cond=0x5586ad208da8) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x5586ad208da8, mutex=0x5586ad208d80) at
pthread_cond_wait.c:655
#3  0x00007f763346d46b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f763346d197 in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f7646fc46db in start_thread (arg=0x7f75fbfff700) at
pthread_create.c:463
#6  0x00007f764b8c688f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7f7600af7700 (LWP 9873)):
#0  0x00007f7646fca9f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x5586ad16de00) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x5586ad16ddb0,
cond=0x5586ad16ddd8) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x5586ad16ddd8, mutex=0x5586ad16ddb0) at
pthread_cond_wait.c:655
#3  0x00007f763346d46b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f763346d197 in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f7646fc46db in start_thread (arg=0x7f7600af7700) at
pthread_create.c:463
#6  0x00007f764b8c688f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7f7602f20700 (LWP 9872)):
#0  0x00007f764b8b9bf9 in __GI___poll (fds=0x7f75fc004a00, nfds=1, timeout=-1)
at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f7644c06539 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7644c0664c in g_main_context_iteration () from
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f764c1f46eb in QEventDispatcherGlib::processEvents
(this=0x7f75fc000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f764c1989aa in QEventLoop::exec (this=this@entry=0x7f7602f1fd40,
flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#5  0x00007f764bfc425a in QThread::exec (this=<optimized out>) at
thread/qthread.cpp:525
#6  0x00007f7649fed4f5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f764bfcf17b in QThreadPrivate::start (arg=0x5586aceee040) at
thread/qthread_unix.cpp:367
#8  0x00007f7646fc46db in start_thread (arg=0x7f7602f20700) at
pthread_create.c:463
#9  0x00007f764b8c688f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7f760adb8700 (LWP 9870)):
#0  0x00007f7644c4c049 in g_mutex_lock () from
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f7644c05905 in g_main_context_prepare () from
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7644c0646b in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7644c0664c in g_main_context_iteration () from
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f764c1f46eb in QEventDispatcherGlib::processEvents
(this=0x7f7604000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#5  0x00007f764c1989aa in QEventLoop::exec (this=this@entry=0x7f760adb7d40,
flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#6  0x00007f764bfc425a in QThread::exec (this=<optimized out>) at
thread/qthread.cpp:525
#7  0x00007f7649fed4f5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f764bfcf17b in QThreadPrivate::start (arg=0x5586acb3c4a0) at
thread/qthread_unix.cpp:367
#9  0x00007f7646fc46db in start_thread (arg=0x7f760adb8700) at
pthread_create.c:463
#10 0x00007f764b8c688f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f7626ffd700 (LWP 9869)):
#0  0x00007f7646fca9f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x5586ac9e6da8) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x5586ac9e6d58,
cond=0x5586ac9e6d80) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x5586ac9e6d80, mutex=0x5586ac9e6d58) at
pthread_cond_wait.c:655
#3  0x00007f763346d46b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f763346d197 in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f7646fc46db in start_thread (arg=0x7f7626ffd700) at
pthread_create.c:463
#6  0x00007f764b8c688f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f76277fe700 (LWP 9868)):
#0  0x00007f7646fca9f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x5586ac9e6da8) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x5586ac9e6d58,
cond=0x5586ac9e6d80) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x5586ac9e6d80, mutex=0x5586ac9e6d58) at
pthread_cond_wait.c:655
#3  0x00007f763346d46b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f763346d197 in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f7646fc46db in start_thread (arg=0x7f76277fe700) at
pthread_create.c:463
#6  0x00007f764b8c688f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f7627fff700 (LWP 9867)):
#0  0x00007f7646fca9f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x5586ac9e6c9c) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x5586ac9e6c48,
cond=0x5586ac9e6c70) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x5586ac9e6c70, mutex=0x5586ac9e6c48) at
pthread_cond_wait.c:655
#3  0x00007f763346d46b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f763346d197 in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f7646fc46db in start_thread (arg=0x7f7627fff700) at
pthread_create.c:463
#6  0x00007f764b8c688f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f762ca79700 (LWP 9866)):
#0  0x00007f7646fca9f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x5586ac9e6c9c) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x5586ac9e6c48,
cond=0x5586ac9e6c70) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x5586ac9e6c70, mutex=0x5586ac9e6c48) at
pthread_cond_wait.c:655
#3  0x00007f763346d46b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f763346d197 in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f7646fc46db in start_thread (arg=0x7f762ca79700) at
pthread_create.c:463
#6  0x00007f764b8c688f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f762d27a700 (LWP 9865)):
#0  0x00007f7646fca9f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x5586ac9e6c9c) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x5586ac9e6c48,
cond=0x5586ac9e6c70) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x5586ac9e6c70, mutex=0x5586ac9e6c48) at
pthread_cond_wait.c:655
#3  0x00007f763346d46b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f763346d197 in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f7646fc46db in start_thread (arg=0x7f762d27a700) at
pthread_create.c:463
#6  0x00007f764b8c688f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f762da7b700 (LWP 9864)):
#0  0x00007f7646fca9f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x5586ac7f066c) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x5586ac7f0618,
cond=0x5586ac7f0640) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x5586ac7f0640, mutex=0x5586ac7f0618) at
pthread_cond_wait.c:655
#3  0x00007f763346d46b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f763346d197 in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f7646fc46db in start_thread (arg=0x7f762da7b700) at
pthread_create.c:463
#6  0x00007f764b8c688f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f762ebff700 (LWP 9863)):
#0  0x00007f7646fca9f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x5586ac9ddcd0) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x5586ac9ddc80,
cond=0x5586ac9ddca8) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x5586ac9ddca8, mutex=0x5586ac9ddc80) at
pthread_cond_wait.c:655
#3  0x00007f763346d46b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f763346d197 in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f7646fc46db in start_thread (arg=0x7f762ebff700) at
pthread_create.c:463
#6  0x00007f764b8c688f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f763b64c700 (LWP 9862)):
#0  0x00007f764b8b50b4 in __GI___libc_read (fd=6, buf=0x7f763b64bb20,
nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007f7644c4acd0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7644c06027 in g_main_context_check () from
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7644c064e0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7644c0664c in g_main_context_iteration () from
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f764c1f46eb in QEventDispatcherGlib::processEvents
(this=0x7f7634000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#6  0x00007f764c1989aa in QEventLoop::exec (this=this@entry=0x7f763b64bd30,
flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#7  0x00007f764bfc425a in QThread::exec (this=<optimized out>) at
thread/qthread.cpp:525
#8  0x00007f764c63be45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#9  0x00007f764bfcf17b in QThreadPrivate::start (arg=0x7f764c8b3d60) at
thread/qthread_unix.cpp:367
#10 0x00007f7646fc46db in start_thread (arg=0x7f763b64c700) at
pthread_create.c:463
#11 0x00007f764b8c688f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f76502cf840 (LWP 9860)):
[KCrash Handler]
#5  KScreen::GetConfigOperation::start (this=0x5586ad831770) at
./src/getconfigoperation.cpp:174
#6  0x00007f764c1ca282 in QObject::event (this=0x5586ad831770, e=<optimized
out>) at kernel/qobject.cpp:1251
#7  0x00007f764d1b6e1c in QApplicationPrivate::notify_helper
(this=this@entry=0x5586ac7e38b0, receiver=receiver@entry=0x5586ad831770,
e=e@entry=0x5586ad28ec10) at kernel/qapplication.cpp:3727
#8  0x00007f764d1be3ef in QApplication::notify (this=0x7ffc23c56410,
receiver=0x5586ad831770, e=0x5586ad28ec10) at kernel/qapplication.cpp:3486
#9  0x00007f764c19a688 in QCoreApplication::notifyInternal2
(receiver=0x5586ad831770, event=event@entry=0x5586ad28ec10) at
kernel/qcoreapplication.cpp:1048
#10 0x00007f764c19d1cd in QCoreApplication::sendEvent (event=0x5586ad28ec10,
receiver=<optimized out>) at
../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:234
#11 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0,
event_type=event_type@entry=0, data=0x5586ac7dafc0) at
kernel/qcoreapplication.cpp:1745
#12 0x00007f764c19d788 in QCoreApplication::sendPostedEvents
(receiver=receiver@entry=0x0, event_type=event_type@entry=0) at
kernel/qcoreapplication.cpp:1599
#13 0x00007f764c1f5093 in postEventSourceDispatch (s=0x5586ac8452b0) at
kernel/qeventdispatcher_glib.cpp:276
#14 0x00007f7644c06387 in g_main_context_dispatch () from
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#15 0x00007f7644c065c0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#16 0x00007f7644c0664c in g_main_context_iteration () from
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#17 0x00007f764c1f46cf in QEventDispatcherGlib::processEvents
(this=0x5586ac7ff560, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#18 0x00007f763f64a731 in
QPAEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/x86_64-linux-gnu/libQt5WaylandClient.so.5
#19 0x00007f764c1989aa in QEventLoop::exec (this=this@entry=0x7ffc23c56330,
flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#20 0x00007f764c1a1b70 in QCoreApplication::exec () at
kernel/qcoreapplication.cpp:1336
#21 0x00005586ab51ce78 in main (argc=<optimized out>, argv=<optimized out>) at
./app/main.cpp:71

Reported using DrKonqi

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