After choosing menu "configure digikam" the dialog starts up and looks ok, but after the first clicks, the entire application freezes. Reproducible: Always Steps to Reproduce: 1. start digikam 2. click menu-entry "configure digikam" 3. click something in the dialog-box Actual Results: application freezes, sometimes shows a single reaction after a minute or so, but never recovers Expected Results: normal operations and ability to use the configuration dialog standard Debian stable application 64 Bit multi-core Intel system MariaDB XFCE Desktop this happens on the console: Object::connect: No such signal org::freedesktop::UPower::DeviceAdded(QString) Object::connect: No such signal org::freedesktop::UPower::DeviceRemoved(QString) Got bus address: "unix:abstract=/tmp/dbus-QWhAl5MZWw,guid=b930101fe7404a1657f64adb5730b810" Connected to accessibility bus at: "unix:abstract=/tmp/dbus-QWhAl5MZWw,guid=b930101fe7404a1657f64adb5730b810" Registered DEC: true Registered event listener change listener: true QSpiAccessible::accessibleEvent not handled: "8008" obj: QObject(0x0) " invalid interface!" QSpiAccessible::accessibleEvent not handled: "8008" obj: QObject(0x0) " invalid interface!" FIXME: handle dialog end. QSpiAccessible::accessibleEvent not handled: "6" obj: KMenu(0x2b67d40, name = "settings") "settings" QSpiAccessible::accessibleEvent not handled: "7" obj: KMenu(0x2b67d40, name = "settings") "settings" QLayout: Cannot add null widget to QVBoxLayout/ QSpiAccessible::accessibleEvent not handled: "8008" obj: QObject(0x0) " invalid interface!" QSpiAccessible::accessibleEvent not handled: "8008" obj: QObject(0x0) " invalid interface!" FIXME: handle dialog start. QSpiAccessible::accessibleEvent not handled: "8008" obj: QObject(0x0) " invalid interface!" QSpiAccessible::accessibleEvent not handled: "8008" obj: QObject(0x0) " invalid interface!" QSpiAccessible::accessibleEvent not handled: "8008" obj: QObject(0x0) " invalid interface!" QSpiAccessible::accessibleEvent not handled: "8008" obj: QObject(0x0) " invalid interface!" QSpiAccessible::accessibleEvent not handled: "8008" obj: QObject(0x0) " invalid interface!"
We need a GDB backtrace to investiguate. Also use last stable 4.14.0 instead older 4.4.0. Gilles Caulier
Can you tell me a Debian Repository where I can get the 4.14? GDB Backtrace after the dialog hangs: [Thread 0x7fffab7fc700 (LWP 22106) exited] [Thread 0x7fff48ff9700 (LWP 22133) exited] [Thread 0x7fffb8bc9700 (LWP 22104) exited] [Thread 0x7fff437fe700 (LWP 22134) exited] ^C Program received signal SIGINT, Interrupt. 0x00007ffff1d86e53 in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4 (gdb) bt #0 0x00007ffff1d86e53 in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4 #1 0x00007ffff1d6ec3a in QObjectPrivate::~QObjectPrivate() () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4 #2 0x00007ffff1d709e4 in QObject::~QObject() () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4 #3 0x00007ffff1d74a09 in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4 #4 0x00007ffff1d6fce3 in QObject::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4 #5 0x00007ffff277548c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4 #6 0x00007ffff277bfa8 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4 #7 0x00007ffff34ed1aa in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5 #8 0x00007ffff1d5671d in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4 #9 0x00007ffff1d8838b in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4 #10 0x00007ffff1d853c1 in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4 #11 0x00007fffe935ec5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #12 0x00007fffe935ef48 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #13 0x00007fffe935effc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #14 0x00007ffff1d85d1d in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4 #15 0x00007ffff2819f96 in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4 #16 0x00007ffff1d55271 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4 #17 0x00007ffff1d555d5 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4 #18 0x00007ffff2c4ae7c in QDialog::exec() () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4 #19 0x00000000004e10c5 in ?? () #20 0x00000000005bc326 in ?? () #21 0x00007ffff1d6b71c in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4 #22 0x00007ffff276ece2 in QAction::triggered(bool) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4 #23 0x00007ffff2770867 in QAction::activate(QAction::ActionEvent) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4 #24 0x00007ffff2bc569d in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4 #25 0x00007ffff2bca069 in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4 #26 0x00007ffff35b5013 in KMenu::mouseReleaseEvent(QMouseEvent*) () from /usr/lib/libkdeui.so.5 #27 0x00007ffff27c8748 in QWidget::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4 #28 0x00007ffff2bce04b in QMenu::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4 #29 0x00007ffff277548c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4 #30 0x00007ffff277c10f in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4 #31 0x00007ffff34ed1aa in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5 #32 0x00007ffff1d5671d in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4 #33 0x00007ffff277b76f in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4 #34 0x00007ffff27f27ca in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4 #35 0x00007ffff27f0e2c in QApplication::x11ProcessEvent(_XEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4 #36 0x00007ffff2819ed2 in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4 #37 0x00007fffe935ec5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #38 0x00007fffe935ef48 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #39 0x00007fffe935effc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #40 0x00007ffff1d85d1d in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4 #41 0x00007ffff2819f96 in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4 #42 0x00007ffff1d55271 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4 #43 0x00007ffff1d555d5 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4 #44 0x00007ffff1d5b059 in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4 #45 0x0000000000495be6 in ?? () #46 0x00007ffff0da7b45 in __libc_start_main (main=0x494aa0, argc=1, argv=0x7fffffffe348, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffffffe338) at libc-start.c:287 #47 0x00000000004981df in _start () (gdb)
There is nothing to see in your backtrace. Did you install debug packages and run digiKam into GDB as ? https://www.digikam.org/contrib Gilles Caulier
I got 4.14 from the Jessie Backports. Configuration works now. Thanks for the hint. I will use the debug package when I find the next bug ;-)