SUMMARY Crash when putting down pencil on huion drawing tablet. STEPS TO REPRODUCE 1. Start krita 2. Use huion pencil on the tablet 3. Crash OBSERVED RESULT Crash when using the huion pencil. Other applications do work with the huion pencil. The mouse do work. EXPECTED RESULT Not to crash. SOFTWARE/OS VERSIONS Windows: MacOS: Linux/KDE Plasma: (available in About System) KDE Plasma Version: plasmashell 5.14.3 KDE Frameworks Version: Qt Version: 5.11.3 ADDITIONAL INFORMATION [New Thread 0x7fff8dffe700 (LWP 4662)] free(): double free detected in tcache 2 Thread 1 "krita" received signal SIGABRT, Aborted. 0x00007ffff4baa85b in raise () from /lib/x86_64-linux-gnu/libc.so.6 (gdb) thread apply all backtrace Thread 36 (Thread 0x7fff8dffe700 (LWP 4662)): #0 0x00007ffff2bc53d9 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0 #1 0x00007ffff4f9436c in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #2 0x00007ffff4f8c1d2 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #3 0x00007ffff4f93cd7 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #4 0x00007ffff2bbefa3 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 #5 0x00007ffff4c6c88f in clone () from /lib/x86_64-linux-gnu/libc.so.6 Thread 35 (Thread 0x7fff8d7fd700 (LWP 4661)): #0 0x00007ffff2bc53d9 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0 #1 0x00007ffff4f9436c in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #2 0x00007ffff4f8c1d2 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #3 0x00007ffff4f93cd7 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #4 0x00007ffff2bbefa3 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 #5 0x00007ffff4c6c88f in clone () from /lib/x86_64-linux-gnu/libc.so.6 Thread 34 (Thread 0x7fff8cffc700 (LWP 4660)): #0 0x00007ffff2bc53d9 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0 #1 0x00007ffff4f9436c in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #2 0x00007ffff4f8c1d2 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #3 0x00007ffff4f93cd7 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #4 0x00007ffff2bbefa3 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 #5 0x00007ffff4c6c88f in clone () from /lib/x86_64-linux-gnu/libc.so.6 Thread 33 (Thread 0x7fff5bff4700 (LWP 4659)): #0 0x00007ffff2bc53d9 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0 #1 0x00007ffff4f9436c in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #2 0x00007ffff4f8c1d2 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #3 0x00007ffff4f93cd7 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #4 0x00007ffff2bbefa3 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 #5 0x00007ffff4c6c88f in clone () from /lib/x86_64-linux-gnu/libc.so.6 Thread 28 (Thread 0x7fffb0eef700 (LWP 4654)): #0 0x00007ffff2bc53d9 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0 #1 0x00007ffff4f9436c in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #2 0x00007ffff4f8c1d2 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #3 0x00007ffff4f93cd7 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #4 0x00007ffff2bbefa3 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 #5 0x00007ffff4c6c88f in clone () from /lib/x86_64-linux-gnu/libc.so.6 --Type <RET> for more, q to quit, c to continue without paging-- Thread 27 (Thread 0x7fffb1ef1700 (LWP 4653)): #0 0x00007ffff2bc53d9 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0 #1 0x00007ffff4f9436c in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #2 0x00007ffff4f8c1d2 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #3 0x00007ffff4f93cd7 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #4 0x00007ffff2bbefa3 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 #5 0x00007ffff4c6c88f in clone () from /lib/x86_64-linux-gnu/libc.so.6 Thread 26 (Thread 0x7fffb16f0700 (LWP 4652)): #0 0x00007ffff2bc53d9 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0 #1 0x00007ffff4f9436c in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #2 0x00007ffff4f8c1d2 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #3 0x00007ffff4f93cd7 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #4 0x00007ffff2bbefa3 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 #5 0x00007ffff4c6c88f in clone () from /lib/x86_64-linux-gnu/libc.so.6 Thread 25 (Thread 0x7fffb26f2700 (LWP 4651)): #0 0x00007ffff2bc53d9 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0 #1 0x00007ffff4f9436c in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #2 0x00007ffff4f8c1d2 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #3 0x00007ffff4f93cd7 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #4 0x00007ffff2bbefa3 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 #5 0x00007ffff4c6c88f in clone () from /lib/x86_64-linux-gnu/libc.so.6 Thread 20 (Thread 0x7fff9534b700 (LWP 4646)): #0 0x00007ffff4c61bd9 in poll () from /lib/x86_64-linux-gnu/libc.so.6 #1 0x00007ffff21f0e46 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007ffff21f0f6c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x00007ffff518e153 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #4 0x00007ffff513b14b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #5 0x00007ffff4f8a106 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #6 0x00007fffeaa314d6 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5 #7 0x00007ffff4f93cd7 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #8 0x00007ffff2bbefa3 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 #9 0x00007ffff4c6c88f in clone () from /lib/x86_64-linux-gnu/libc.so.6 Thread 19 (Thread 0x7fff9665c700 (LWP 4645)): #0 0x00007ffff4c61bd9 in poll () from /lib/x86_64-linux-gnu/libc.so.6 #1 0x00007ffff21f0e46 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 --Type <RET> for more, q to quit, c to continue without paging-- #2 0x00007ffff21f0f6c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x00007ffff518e153 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #4 0x00007ffff513b14b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #5 0x00007ffff4f8a106 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #6 0x00007fffea7ac375 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5 #7 0x00007ffff4f93cd7 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #8 0x00007ffff2bbefa3 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 #9 0x00007ffff4c6c88f in clone () from /lib/x86_64-linux-gnu/libc.so.6 Thread 14 (Thread 0x7fffb2ef3700 (LWP 4640)): #0 0x00007ffff4c39ae0 in nanosleep () from /lib/x86_64-linux-gnu/libc.so.6 #1 0x00007ffff518daed in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #2 0x00007ffff3bfef9a in KisTileDataSwapper::run() () from /usr/lib/x86_64-linux-gnu/libkritaimage.so.17 #3 0x00007ffff4f93cd7 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #4 0x00007ffff2bbefa3 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 #5 0x00007ffff4c6c88f in clone () from /lib/x86_64-linux-gnu/libc.so.6 Thread 13 (Thread 0x7fffbe227700 (LWP 4639)): #0 0x00007ffff4c67309 in syscall () from /lib/x86_64-linux-gnu/libc.so.6 #1 0x00007ffff4f88d44 in QSemaphore::acquire(int) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #2 0x00007ffff3be235a in ?? () from /usr/lib/x86_64-linux-gnu/libkritaimage.so.17 #3 0x00007ffff3be2b8a in ?? () from /usr/lib/x86_64-linux-gnu/libkritaimage.so.17 #4 0x00007ffff4f93cd7 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #5 0x00007ffff2bbefa3 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 #6 0x00007ffff4c6c88f in clone () from /lib/x86_64-linux-gnu/libc.so.6 Thread 11 (Thread 0x7fffbffff700 (LWP 4636)): #0 0x00007ffff4c61bd9 in poll () from /lib/x86_64-linux-gnu/libc.so.6 #1 0x00007ffff21f0e46 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007ffff21f0f6c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x00007ffff518e153 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #4 0x00007ffff513b14b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #5 0x00007ffff4f8a106 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #6 0x00007ffff2bee545 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5 #7 0x00007ffff4f93cd7 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #8 0x00007ffff2bbefa3 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 #9 0x00007ffff4c6c88f in clone () from /lib/x86_64-linux-gnu/libc.so.6 Thread 10 (Thread 0x7fffdcbf0700 (LWP 4635)): #0 0x00007ffff2bc4fec in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0 --Type <RET> for more, q to quit, c to continue without paging-- #1 0x00007fffe85a47fb in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so #2 0x00007fffe85a4527 in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so #3 0x00007ffff2bbefa3 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 #4 0x00007ffff4c6c88f in clone () from /lib/x86_64-linux-gnu/libc.so.6 Thread 9 (Thread 0x7fffdd411700 (LWP 4634)): #0 0x00007ffff2bc4fec in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0 #1 0x00007fffe85a47fb in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so #2 0x00007fffe85a4527 in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so #3 0x00007ffff2bbefa3 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 #4 0x00007ffff4c6c88f in clone () from /lib/x86_64-linux-gnu/libc.so.6 Thread 8 (Thread 0x7fffddc12700 (LWP 4633)): #0 0x00007ffff2bc4fec in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0 #1 0x00007fffe85a47fb in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so #2 0x00007fffe85a4527 in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so #3 0x00007ffff2bbefa3 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 #4 0x00007ffff4c6c88f in clone () from /lib/x86_64-linux-gnu/libc.so.6 Thread 7 (Thread 0x7fffde413700 (LWP 4632)): #0 0x00007ffff2bc4fec in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0 #1 0x00007fffe85a47fb in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so #2 0x00007fffe85a4527 in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so #3 0x00007ffff2bbefa3 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 #4 0x00007ffff4c6c88f in clone () from /lib/x86_64-linux-gnu/libc.so.6 Thread 6 (Thread 0x7fffdec14700 (LWP 4631)): #0 0x00007ffff2bc4fec in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0 #1 0x00007fffe85a47fb in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so #2 0x00007fffe85a4527 in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so #3 0x00007ffff2bbefa3 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 #4 0x00007ffff4c6c88f in clone () from /lib/x86_64-linux-gnu/libc.so.6 Thread 5 (Thread 0x7fffdf415700 (LWP 4630)): #0 0x00007ffff2bc4fec in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0 #1 0x00007fffe85a47fb in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so #2 0x00007fffe85a4527 in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so #3 0x00007ffff2bbefa3 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 #4 0x00007ffff4c6c88f in clone () from /lib/x86_64-linux-gnu/libc.so.6 --Type <RET> for more, q to quit, c to continue without paging-- Thread 4 (Thread 0x7fffdfc16700 (LWP 4629)): #0 0x00007ffff2bc4fec in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0 #1 0x00007fffe85a47fb in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so #2 0x00007fffe85a4527 in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so #3 0x00007ffff2bbefa3 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 #4 0x00007ffff4c6c88f in clone () from /lib/x86_64-linux-gnu/libc.so.6 Thread 3 (Thread 0x7fffe0585700 (LWP 4628)): #0 0x00007ffff2bc4fec in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0 #1 0x00007fffe85a47fb in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so #2 0x00007fffe85a4527 in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so #3 0x00007ffff2bbefa3 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 #4 0x00007ffff4c6c88f in clone () from /lib/x86_64-linux-gnu/libc.so.6 Thread 2 (Thread 0x7fffebf39700 (LWP 4627)): #0 0x00007ffff4c61bd9 in poll () from /lib/x86_64-linux-gnu/libc.so.6 #1 0x00007ffff417dcf7 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1 #2 0x00007ffff417f91a in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1 #3 0x00007fffec86a519 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5 #4 0x00007ffff4f93cd7 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #5 0x00007ffff2bbefa3 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 #6 0x00007ffff4c6c88f in clone () from /lib/x86_64-linux-gnu/libc.so.6 Thread 1 (Thread 0x7fffed377840 (LWP 4623)): #0 0x00007ffff4baa85b in raise () from /lib/x86_64-linux-gnu/libc.so.6 #1 0x00007ffff4b95535 in abort () from /lib/x86_64-linux-gnu/libc.so.6 #2 0x00007ffff4bec718 in ?? () from /lib/x86_64-linux-gnu/libc.so.6 #3 0x00007ffff4bf2e3a in ?? () from /lib/x86_64-linux-gnu/libc.so.6 #4 0x00007ffff4bf491d in ?? () from /lib/x86_64-linux-gnu/libc.so.6 #5 0x00007ffff54f5cd0 in QTabletEvent::~QTabletEvent() () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5 #6 0x00007ffff710f497 in ?? () from /usr/lib/x86_64-linux-gnu/libkritaui.so.17 #7 0x00007ffff7109105 in ?? () from /usr/lib/x86_64-linux-gnu/libkritaui.so.17 #8 0x00007ffff7109464 in ?? () from /usr/lib/x86_64-linux-gnu/libkritaui.so.17 #9 0x00007ffff710d119 in ?? () from /usr/lib/x86_64-linux-gnu/libkritaui.so.17 #10 0x00007ffff71107f8 in KisXi2EventFilter::nativeEventFilter(QByteArray const&, void*, long*) () from /usr/lib/x86_64-linux-gnu/libkritaui.so.17 #11 0x00007ffff5139fcf in QAbstractEventDispatcher::filterNativeEvent(QByteArray const&, void*, long*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #12 0x00007fffec86bcb0 in QXcbConnection::handleXcbEvent(xcb_generic_event_t*) () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5 #13 0x00007fffec86c843 in QXcbConnection::processXcbEvents() () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5 #14 0x00007ffff5165f82 in QObject::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #15 0x00007ffff5ab4491 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 --Type <RET> for more, q to quit, c to continue without paging-- #16 0x00007ffff5abbad0 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 #17 0x00007ffff7032cd7 in KisApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libkritaui.so.17 #18 0x00007ffff513c479 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #19 0x00007ffff513f46b in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #20 0x00007ffff518eb23 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #21 0x00007ffff21f0c3e in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #22 0x00007ffff21f0ed8 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #23 0x00007ffff21f0f6c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #24 0x00007ffff518e153 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #25 0x00007fffec8fd861 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5 #26 0x00007ffff513b14b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #27 0x00007ffff51432c2 in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #28 0x0000555555e8d937 in main () (gdb)
This is a bug in Qt 5.11.3 and 5.12. There's a workaround in 4.1.7.101, but apparently Debian doesn't package that yet. You can always use the appimage, which uses a version of Qt that isn't broken. *** This bug has been marked as a duplicate of bug 401988 ***
*** Bug 403180 has been marked as a duplicate of this bug. ***