#0  0x000055a3f6053bbd in queue_background_change (self=0x55a3f78ac5a0) at ../nautilus-desktop/nautilus-desktop-background.c:443
  438: }
  439: 
  440: static void
  441: queue_background_change (NautilusDesktopBackground *self)
  442: {
  443:     if (self->details->change_idle_id != 0)
  444:     {
  445:         g_source_remove (self->details->change_idle_id);
  446:     }
  447: 
  448:     self->details->change_idle_id = g_idle_add ((GSourceFunc) background_changed_cb, self);
#1  0x00007f77923c5b6d in g_closure_invoke (closure=0x55a3f789cde0, return_value=0x0, n_param_values=1, param_values=0x7ffdc28ac420, invocation_hint=0x7ffdc28ac3a0) at ../../../../gobject/gclosure.c:810
  [Error: gclosure.c was not found in source tree]
#2  0x00007f77923d88f3 in signal_emit_unlocked_R (node=node@entry=0x55a3f7046010, detail=detail@entry=0, instance=instance@entry=0x55a3f70480c0, emission_return=emission_return@entry=0x0, instance_and_params=instance_and_params@entry=0x7ffdc28ac420) at ../../../../gobject/gsignal.c:3635
  [Error: gsignal.c was not found in source tree]
#3  0x00007f77923e1882 in g_signal_emit_valist (instance=instance@entry=0x55a3f70480c0, signal_id=signal_id@entry=94, detail=detail@entry=0, var_args=var_args@entry=0x7ffdc28ac618) at ../../../../gobject/gsignal.c:3391
  [Error: gsignal.c was not found in source tree]
#4  0x00007f77923e23a4 in g_signal_emit_by_name (instance=0x55a3f70480c0, detailed_signal=<optimized out>) at ../../../../gobject/gsignal.c:3487
  [Error: gsignal.c was not found in source tree]
#5  0x00007f77927f2aad in _gdk_x11_screen_size_changed (screen=screen@entry=0x55a3f70480c0, event=event@entry=0x7ffdc28ac890) at ../../../../../gdk/x11/gdkscreen-x11.c:1061
  [Error: gdkscreen-x11.c was not found in source tree]
#6  0x00007f77927e41f4 in gdk_x11_display_translate_event (translator=<optimized out>, display=0x55a3f70410e0, event=0x55a3f75483d0, xevent=0x7ffdc28ac890) at ../../../../../gdk/x11/gdkdisplay-x11.c:1200
  [Error: gdkdisplay-x11.c was not found in source tree]
#7  0x00007f77927ea588 in _gdk_x11_event_translator_translate (translator=0x55a3f70410e0, display=0x55a3f70410e0, xevent=xevent@entry=0x7ffdc28ac890) at ../../../../../gdk/x11/gdkeventtranslator.c:51
  [Error: gdkeventtranslator.c was not found in source tree]
#8  0x00007f77927ea095 in gdk_event_source_translate_event (xevent=0x7ffdc28ac890, event_source=0x55a3f705b130) at ../../../../../gdk/x11/gdkeventsource.c:243
  [Error: gdkeventsource.c was not found in source tree]
#9  _gdk_x11_display_queue_events (display=0x55a3f70410e0) at ../../../../../gdk/x11/gdkeventsource.c:341
  [Error: gdkeventsource.c was not found in source tree]
#10 0x00007f77927b47f0 in gdk_display_get_event (display=display@entry=0x55a3f70410e0) at ../../../../gdk/gdkdisplay.c:438
  [Error: gdkdisplay.c was not found in source tree]
#11 0x00007f77927e9d12 in gdk_event_source_dispatch (source=<optimized out>, callback=<optimized out>, user_data=<optimized out>) at ../../../../../gdk/x11/gdkeventsource.c:363
  [Error: gdkeventsource.c was not found in source tree]
#12 0x00007f7793007c3e in g_main_dispatch (context=0x55a3f6fffc80) at ../../../../glib/gmain.c:3182
  [Error: gmain.c was not found in source tree]
#13 g_main_context_dispatch (context=context@entry=0x55a3f6fffc80) at ../../../../glib/gmain.c:3847
  [Error: gmain.c was not found in source tree]
#14 0x00007f7793007ed8 in g_main_context_iterate (context=context@entry=0x55a3f6fffc80, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../../glib/gmain.c:3920
  [Error: gmain.c was not found in source tree]
#15 0x00007f7793007f6c in g_main_context_iteration (context=context@entry=0x55a3f6fffc80, may_block=may_block@entry=1) at ../../../../glib/gmain.c:3981
  [Error: gmain.c was not found in source tree]
#16 0x00007f77924ac13d in g_application_run (application=0x55a3f6fe6130, argc=<optimized out>, argv=0x7ffdc28acc38) at ../../../../gio/gapplication.c:2470
  [Error: gapplication.c was not found in source tree]
#17 0x000055a3f6050c62 in main (argc=1, argv=0x7ffdc28acc38) at ../nautilus-desktop/main-desktop.c:43
  38:     gdk_set_allowed_backends ("x11");
  39: 
  40:     nautilus_register_resource ();
  41:     application = nautilus_desktop_application_new ();
  42: 
  43:     retval = g_application_run (G_APPLICATION (application),
  44:                                 argc, argv);
  45: 
  46:     g_object_unref (application);
  47: 
  48:     return retval;