#0  0x00007f4aed57b3a4 in _gdk_device_xi2_reset_scroll_valuators (device=0x24c4b10) at /build/buildd/gtk+3.0-3.12.2/./gdk/x11/gdkdevice-xi2.c:870
  [Error: /build/buildd/gtk+3.0-3.12.2/./gdk/x11/gdkdevice-xi2.c was not found in source tree]
#1  0x00007f4aed57e70c in handle_device_changed (ev=<optimized out>, device_manager=<optimized out>) at /build/buildd/gtk+3.0-3.12.2/./gdk/x11/gdkdevicemanager-xi2.c:775
  [Error: /build/buildd/gtk+3.0-3.12.2/./gdk/x11/gdkdevicemanager-xi2.c was not found in source tree]
#2  gdk_x11_device_manager_xi2_translate_event (translator=0x24c4b10, display=0x2490ec0, event=0x27fcde0, xevent=0x7fffe571b120) at /build/buildd/gtk+3.0-3.12.2/./gdk/x11/gdkdevicemanager-xi2.c:1168
  [Error: /build/buildd/gtk+3.0-3.12.2/./gdk/x11/gdkdevicemanager-xi2.c was not found in source tree]
#3  0x00007f4aed586b62 in _gdk_x11_event_translator_translate (translator=0x2492ed0, display=0x24b2000, xevent=xevent@entry=0x7fffe571b120) at /build/buildd/gtk+3.0-3.12.2/./gdk/x11/gdkeventtranslator.c:51
  [Error: /build/buildd/gtk+3.0-3.12.2/./gdk/x11/gdkeventtranslator.c was not found in source tree]
#4  0x00007f4aed586601 in gdk_event_source_translate_event (xevent=0x7fffe571b120, event_source=0x24983f0) at /build/buildd/gtk+3.0-3.12.2/./gdk/x11/gdkeventsource.c:240
  [Error: /build/buildd/gtk+3.0-3.12.2/./gdk/x11/gdkeventsource.c was not found in source tree]
#5  _gdk_x11_display_queue_events (display=0x24b2000) at /build/buildd/gtk+3.0-3.12.2/./gdk/x11/gdkeventsource.c:338
  [Error: /build/buildd/gtk+3.0-3.12.2/./gdk/x11/gdkeventsource.c was not found in source tree]
#6  0x00007f4aed55cf29 in gdk_display_get_event (display=display@entry=0x24b2000) at /build/buildd/gtk+3.0-3.12.2/./gdk/gdkdisplay.c:320
  [Error: /build/buildd/gtk+3.0-3.12.2/./gdk/gdkdisplay.c was not found in source tree]
#7  0x00007f4aed586282 in gdk_event_source_dispatch (source=<optimized out>, callback=<optimized out>, user_data=<optimized out>) at /build/buildd/gtk+3.0-3.12.2/./gdk/x11/gdkeventsource.c:360
  [Error: /build/buildd/gtk+3.0-3.12.2/./gdk/x11/gdkeventsource.c was not found in source tree]
#8  0x00007f4aee11fc5d in g_main_dispatch (context=0x249f260) at /build/buildd/glib2.0-2.42.0/./glib/gmain.c:3111
  [Error: /build/buildd/glib2.0-2.42.0/./glib/gmain.c was not found in source tree]
#9  g_main_context_dispatch (context=context@entry=0x249f260) at /build/buildd/glib2.0-2.42.0/./glib/gmain.c:3710
  [Error: /build/buildd/glib2.0-2.42.0/./glib/gmain.c was not found in source tree]
#10 0x00007f4aee11ff48 in g_main_context_iterate (context=0x249f260, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.42.0/./glib/gmain.c:3781
  [Error: /build/buildd/glib2.0-2.42.0/./glib/gmain.c was not found in source tree]
#11 0x00007f4aee120272 in g_main_loop_run (loop=0x2570f00) at /build/buildd/glib2.0-2.42.0/./glib/gmain.c:3975
  [Error: /build/buildd/glib2.0-2.42.0/./glib/gmain.c was not found in source tree]
#12 0x00007f4aeeb64045 in gtk_main () at /build/buildd/gtk+3.0-3.12.2/./gtk/gtkmain.c:1192
  [Error: /build/buildd/gtk+3.0-3.12.2/./gtk/gtkmain.c was not found in source tree]
#13 0x00000000004037f1 in main (argc=1, argv=0x7fffe571b498) at main.c:483
  478:                 g_timeout_add_seconds (30, (GSourceFunc) timed_exit_cb, NULL);
  479:         }
  480:      
  481:         gsd_idle_monitor_init_dbus (replace);
  482: 
  483:         gtk_main ();
  484: 
  485:         g_debug ("Shutting down");
  486: 
  487:         if (name_id > 0) {
  488:                 g_bus_unown_name (name_id);