Partial backtrace from the affectec box. Still waiting for full Qt build pure virtual method called terminate called without an active exception Program received signal SIGABRT, Aborted. 0x00007ffff4fb0f79 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56 56 ../nptl/sysdeps/unix/sysv/linux/raise.c: No such file or directory. (gdb) (gdb) bt #0 0x00007ffff4fb0f79 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56 #1 0x00007ffff4fb4388 in __GI_abort () at abort.c:89 #2 0x00007ffff55b66b5 in __gnu_cxx::__verbose_terminate_handler() () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6 #3 0x00007ffff55b4836 in ?? () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6 #4 0x00007ffff55b4863 in std::terminate() () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6 #5 0x00007ffff55b533f in __cxa_pure_virtual () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6 #6 0x00007ffff5fd1aca in QPlatformScreen::physicalSize() const () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5 #7 0x00007ffff6003c42 in QScreen::physicalSize() const () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5 #8 0x00007ffff6003ce9 in QScreen::physicalDotsPerInch() const () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5 #9 0x00007ffff7839fd2 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5 #10 0x00007ffff5ae92a6 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #11 0x00007ffff5fe442f in QWindow::screenChanged(QScreen*) () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5 #12 0x00007ffff5fe6aa0 in QWindowPrivate::setScreen(QScreen*, bool) () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5 ---Type to continue, or q to quit--- #13 0x00007ffff5fe6c22 in QWindow::screenDestroyed(QObject*) () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5 #14 0x00007ffff5ae92a6 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #15 0x00007ffff5ae986f in QObject::destroyed(QObject*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #16 0x00007ffff5af0853 in QObject::~QObject() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #17 0x00007ffff62834b7 in QScreen::~QScreen() () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5 #18 0x00007ffff5fd1ca9 in QPlatformScreen::~QPlatformScreen() () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5 #19 0x00007fffeda0b429 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqxcb.so #20 0x00007fffeda000ab in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqxcb.so #21 0x00007fffeda00785 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqxcb.so #22 0x00007fffeda0190b in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqxcb.so #23 0x00007ffff5aea22e in QObject::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #24 0x00007ffff6906c8c in QApplicationPrivate::notify_helper(QObject*, QEvent*) ---Type to continue, or q to quit--- () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 #25 0x00007ffff690be56 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 #26 0x00007ffff5ac1c2d in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #27 0x00007ffff5ac3e07 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #28 0x00007ffff5b0ecd3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #29 0x00007ffff3d60e04 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #30 0x00007ffff3d61048 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #31 0x00007ffff3d610ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #32 0x00007ffff5b0e98c in QEventDispatcherGlib::processEvents(QFlags) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #33 0x00007ffff5ac096b in QEventLoop::exec(QFlags) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #34 0x00007ffff5ac70e1 in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #35 0x00000000004083c5 in ?? () #36 0x00007ffff4f9bec5 in __libc_start_main (main=0x407be0, argc=1, argv=0x7fffffffe538, init=, fini=, rtld_fini=, stack_end=0x7fffffffe528) at libc-start.c:287 ---Type to continue, or q to quit---