Thread 1 "kstars" received signal SIGSEGV, Segmentation fault. 0x00007ffff53480be in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5 (gdb) backtrace full #0 0x00007ffff53480be in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5 No symbol table info available. #1 0x00007ffff56e76e6 in QGuiApplication::screenAdded(QScreen*) () from /lib/x86_64-linux-gnu/libQt5Gui.so.5 No symbol table info available. #2 0x00007ffff56ccce0 in QWindowSystemInterface::handleScreenAdded(QPlatformScreen*, bool) () from /lib/x86_64-linux-gnu/libQt5Gui.so.5 No symbol table info available. #3 0x00007fffef83a240 in QXcbConnection::initializeScreens() () from /lib/x86_64-linux-gnu/libQt5XcbQpa.so.5 No symbol table info available. #4 0x00007fffef8115f0 in QXcbConnection::QXcbConnection(QXcbNativeInterface*, bool, unsigned int, char const*) () from /lib/x86_64-linux-gnu/libQt5XcbQpa.so.5 No symbol table info available. #5 0x00007fffef814d63 in QXcbIntegration::QXcbIntegration(QStringList const&, int&, char**) () from /lib/x86_64-linux-gnu/libQt5XcbQpa.so.5 No symbol table info available. #6 0x00007ffff7fbf513 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqxcb.so No symbol table info available. #7 0x00007ffff56ebcbc in QGuiApplicationPrivate::createPlatformIntegration() () from /lib/x86_64-linux-gnu/libQt5Gui.so.5 --Type for more, q to quit, c to continue without paging--c No symbol table info available. #8 0x00007ffff56ed1d8 in QGuiApplicationPrivate::createEventDispatcher() () from /lib/x86_64-linux-gnu/libQt5Gui.so.5 No symbol table info available. #9 0x00007ffff5317426 in QCoreApplicationPrivate::init() () from /lib/x86_64-linux-gnu/libQt5Core.so.5 No symbol table info available. #10 0x00007ffff56f0152 in QGuiApplicationPrivate::init() () from /lib/x86_64-linux-gnu/libQt5Gui.so.5 No symbol table info available. #11 0x00007ffff5e07d0d in QApplicationPrivate::init() () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5 No symbol table info available. #12 0x000055555570b633 in main (argc=, argv=0x7fffffffe018) at ./kstars/main.cpp:78 app = writableDir = {d_ptr = {d = 0x0}} versionString = {static null = {}, d = 0x7ffff55b01c8} aboutData = {static staticMetaObject = {d = {superdata = {direct = 0x0}, stringdata = 0x7ffff6f25940, data = 0x7ffff6f25840, static_metacall = 0x7ffff6ed29e0, relatedMetaObjects = 0x0, extradata = 0x0}}, d = std::unique_ptr = {get() = 0x100}} parser = {d = 0x5555563eb680} datestring = {static null = {}, d = 0x555500000003} urls = {> = {> = {}, {p = {static shared_null = {ref = {atomic = {_q_value = {> = {static _S_alignment = 4, _M_i = -1}, }}}, alloc = 0, begin = 0, end = 0, array = {0x0}}, d = 0x26}, d = 0x26}}, }