Application: plasma-discover (5.14.5)

Qt Version: 5.11.3
Frameworks Version: 5.54.0
Operating System: Linux 4.19.0-12-amd64 x86_64
Distribution: Debian GNU/Linux 10 (buster)

-- Information about the crash:
- What I was doing when the application crashed:
just launching these apps. 

- Unusual behavior I noticed:
Software Renderer in use - icon in the icon tray, no matter what I change to (automatic etc), it reverts back to software after reboot

 - so far all these close unexpectedtly:
discover
systemsettings5
ksplashqml (no login screen, tried switching to another, no luck + preview fails)
launch button/icon top left corner doesn't work on click (but does on windows/cmd button press)

The crash can be reproduced every time.

-- Backtrace:
Application: Discover (plasma-discover), signal: Aborted
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f59b9491840 (LWP 9338))]

Thread 10 (Thread 0x7f5987fff700 (LWP 9466)):
#0  0x00007f59bf2def59 in syscall () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007f59bf5e79d5 in QBasicMutex::lockInternal() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f59bed501cb in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#3  0x00007f59bed509e5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#4  0x00007f59bed2a618 in QSslSocket::startClientEncryption() () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#5  0x00007f59bed2b330 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#6  0x00007f59bed32d39 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#7  0x00007f59bf7c57f6 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f59becf91f3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#9  0x00007f59becfbfb0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#10 0x00007f59bed0af5d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#11 0x00007f59c05b04c1 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#12 0x00007f59c05b7970 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#13 0x00007f59bf79c489 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007f59bf7ee34a in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#15 0x00007f59bda66f2e in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#16 0x00007f59bda671c8 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#17 0x00007f59bda6725c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#18 0x00007f59bf7ed743 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#19 0x00007f59bf79b15b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#20 0x00007f59bf5eae76 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#21 0x00007f59bf5f4a67 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#22 0x00007f59be78dfa3 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#23 0x00007f59bf2e44cf in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 9 (Thread 0x7f599cb7b700 (LWP 9459)):
#0  0x00007f59bf2d9819 in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007f59bda67136 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f59bda674c2 in g_main_loop_run () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f599ddef266 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007f59bda8f415 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f59be78dfa3 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#6  0x00007f59bf2e44cf in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 8 (Thread 0x7f599d37c700 (LWP 9458)):
#0  0x00007f59bf2d9819 in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007f59bda67136 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f59bda6725c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f59bda672a1 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f59bda8f415 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f59be78dfa3 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#6  0x00007f59bf2e44cf in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 7 (Thread 0x7f599f248700 (LWP 9344)):
#0  0x00007f59bf2def59 in syscall () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007f59bf5e9ac4 in QSemaphore::acquire(int) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f59bf7c5a78 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f59bed5adc2 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#4  0x00007f59bed5bbac in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#5  0x00007f59bf7c57f6 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f59bed59e12 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#7  0x00007f59becad4b5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#8  0x00007f59becaec2c in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#9  0x00007f59bf7c57f6 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f59bed29972 in QSslSocket::preSharedKeyAuthenticationRequired(QSslPreSharedKeyAuthenticator*) () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#11 0x00007f59bed4feca in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#12 0x00007f599f28fece in ?? () from /usr/lib/x86_64-linux-gnu/libssl.so.1.1
#13 0x00007f599f28ded9 in ?? () from /usr/lib/x86_64-linux-gnu/libssl.so.1.1
#14 0x00007f599f298026 in ?? () from /usr/lib/x86_64-linux-gnu/libssl.so.1.1
#15 0x00007f599f296f5f in ?? () from /usr/lib/x86_64-linux-gnu/libssl.so.1.1
#16 0x00007f599f282f34 in SSL_do_handshake () from /usr/lib/x86_64-linux-gnu/libssl.so.1.1
#17 0x00007f59bed50645 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#18 0x00007f59bed509e5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#19 0x00007f59bed2a618 in QSslSocket::startClientEncryption() () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#20 0x00007f59bed2b330 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#21 0x00007f59bed32d39 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#22 0x00007f59bf7c57f6 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#23 0x00007f59becf91f3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#24 0x00007f59becfbfb0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#25 0x00007f59bed0af5d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#26 0x00007f59c05b04c1 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#27 0x00007f59c05b7970 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#28 0x00007f59bf79c489 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#29 0x00007f59bf7ee34a in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#30 0x00007f59bda66f2e in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#31 0x00007f59bda671c8 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#32 0x00007f59bda6725c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#33 0x00007f59bf7ed743 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#34 0x00007f59bf79b15b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#35 0x00007f59bf5eae76 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#36 0x00007f59bf5f4a67 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#37 0x00007f59be78dfa3 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#38 0x00007f59bf2e44cf in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 6 (Thread 0x7f599fdfa700 (LWP 9343)):
#0  0x00007f59bf2d9819 in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007f59bda67136 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f59bda6725c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f59bf7ed743 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f59bf79b15b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f59bf5eae76 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f59bf5f4a67 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f59be78dfa3 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#8  0x00007f59bf2e44cf in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 5 (Thread 0x7f59a60e9700 (LWP 9342)):
#0  0x00007f59bda64000 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f59bda665a3 in g_main_context_prepare () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f59bda6706b in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f59bda6725c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f59bf7ed743 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f59bf79b15b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f59bf5eae76 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f59c101f476 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#8  0x00007f59bf5f4a67 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f59be78dfa3 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#10 0x00007f59bf2e44cf in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 4 (Thread 0x7f59b5009700 (LWP 9341)):
#0  0x00007f59bf5e7c1f in QMutex::unlock() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#1  0x00007f59bf7ed661 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f59bda66669 in g_main_context_prepare () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f59bda6706b in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f59bda6725c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f59bf7ed743 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f59bf79b15b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f59bf5eae76 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f59bfd78c65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007f59bf5f4a67 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f59be78dfa3 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#11 0x00007f59bf2e44cf in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 3 (Thread 0x7f59b621a700 (LWP 9340)):
#0  0x00007f59bf2d5494 in read () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007f59bd440063 in ?? () from /usr/lib/x86_64-linux-gnu/libnvidia-tls.so.418.152.00
#2  0x00007f59bdaacaa0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f59bda66c0f in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f59bda670e0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f59bda6725c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f59bf7ed743 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f59bf79b15b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f59bf5eae76 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f59c0ac0545 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#10 0x00007f59bf5f4a67 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f59be78dfa3 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#12 0x00007f59bf2e44cf in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 2 (Thread 0x7f59b8276700 (LWP 9339)):
#0  0x00007f59bf2d9819 in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007f59bd986cf7 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f59bd98891a in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f59b9037d79 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007f59bf5f4a67 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f59be78dfa3 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#6  0x00007f59bf2e44cf in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 1 (Thread 0x7f59b9491840 (LWP 9338)):
[KCrash Handler]
#6  0x00007f59bf2227bb in raise () from /lib/x86_64-linux-gnu/libc.so.6
#7  0x00007f59bf20d535 in abort () from /lib/x86_64-linux-gnu/libc.so.6
#8  0x00007f59bf5b39a7 in QMessageLogger::fatal(char const*, ...) const () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f59c1083c9d in QSGRenderLoop::handleContextCreationFailure(QQuickWindow*, bool) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#10 0x00007f59c1084d65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#11 0x00007f59c1085615 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#12 0x00007f59bffed215 in QWindow::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#13 0x00007f59c10ff2db in QQuickWindow::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#14 0x00007f59c05b04c1 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#15 0x00007f59c05b7970 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#16 0x00007f59bf79c489 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#17 0x00007f59bffe2263 in QGuiApplicationPrivate::processExposeEvent(QWindowSystemInterfacePrivate::ExposeEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#18 0x00007f59bffe2f0d in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#19 0x00007f59bffbd07b in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#20 0x00007f59b90ce49b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#21 0x00007f59bf79b15b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#22 0x00007f59bf7a3132 in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#23 0x0000564b511d8b23 in ?? ()
#24 0x00007f59bf20f09b in __libc_start_main () from /lib/x86_64-linux-gnu/libc.so.6
#25 0x0000564b511d90ca in _start ()
[Inferior 1 (process 9338) detached]

The reporter indicates this bug may be a duplicate of or related to bug 375913.

Possible duplicates by query: bug 425194, bug 422614, bug 420938, bug 420828, bug 419051.

Reported using DrKonqi