#0  0x00007ff9b786ab68 in QSystemTrayIcon::setVisible(bool) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
No symbol table info available.
#1  0x000000000046ba3d in ?? ()
No symbol table info available.
#2  0x000000000046d7a2 in ?? ()
No symbol table info available.
#3  0x00007ff9b7296106 in QWidget::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
No symbol table info available.
#4  0x00007ff9b76509b3 in QMainWindow::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
No symbol table info available.
#5  0x00007ff9b7246e2c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
No symbol table info available.
#6  0x00007ff9b724d4a0 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
No symbol table info available.
#7  0x00007ff9b69cd4dd in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
No symbol table info available.
#8  0x00007ff9b7292979 in QWidgetPrivate::close_helper(QWidgetPrivate::CloseMode) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
No symbol table info available.
#9  0x000000000046918d in ?? ()
No symbol table info available.
#10 0x00000000004ce93f in ?? ()
No symbol table info available.
#11 0x00007ff9b5d73ec5 in __libc_start_main (main=0x418f80, argc=2, argv=0x7fff4b8d1118, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff4b8d1108) at libc-start.c:287
        result = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, 4592479201558643876, 4296655, 140734460924176, 0, 0, -4592171223160077148, -4591234904385141596}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x4dc510, 0x7fff4b8d1118}, data = {prev = 0x0, cleanup = 0x0, canceltype = 5096720}}}
        not_first_call = <optimized out>
#12 0x0000000000418ff8 in ?? ()
No symbol table info available.