#0  init_config_from_preferred_mode (output=0x5136e90, config=0x6356260) at backends/meta-monitor-config.c:1104
  [Error: meta-monitor-config.c was not found in source tree]
#1  make_linear_config (self=<optimized out>, max_width=<optimized out>, max_height=<optimized out>, config=0x58e4680, n_outputs=2, outputs=0x5136e90) at backends/meta-monitor-config.c:1182
  [Error: meta-monitor-config.c was not found in source tree]
#2  make_default_config (use_stored_config=<optimized out>, max_height=<optimized out>, max_width=<optimized out>, n_outputs=<optimized out>, outputs=0x5136e90, self=0x3bf2120) at backends/meta-monitor-config.c:1296
  [Error: meta-monitor-config.c was not found in source tree]
#3  meta_monitor_config_make_default (self=0x3bf2120, manager=0x26602a0) at backends/meta-monitor-config.c:1381
  [Error: meta-monitor-config.c was not found in source tree]
#4  0x00007fe10d9c5fed in meta_monitor_manager_on_hotplug (manager=<optimized out>) at backends/meta-monitor-manager.c:1286
  [Error: meta-monitor-manager.c was not found in source tree]
#5  0x00007fe10d9cbd5d in meta_monitor_manager_xrandr_handle_xevent (manager_xrandr=0x26602a0, event=event@entry=0x7ffdef854fa0) at backends/x11/meta-monitor-manager-xrandr.c:1233
  [Error: meta-monitor-manager-xrandr.c was not found in source tree]
#6  0x00007fe10d9c859b in handle_host_xevent (event=0x7ffdef854fa0, backend=0x264d0b0) at backends/x11/meta-backend-x11.c:276
  [Error: meta-backend-x11.c was not found in source tree]
#7  x_event_source_dispatch (source=<optimized out>, callback=<optimized out>, user_data=<optimized out>) at backends/x11/meta-backend-x11.c:336
  [Error: meta-backend-x11.c was not found in source tree]
#8  0x00007fe10c08dff7 in g_main_dispatch (context=0x2644710) at /build/glib2.0-3UmwzF/glib2.0-2.46.0/./glib/gmain.c:3154
  [Error: gmain.c was not found in source tree]
#9  g_main_context_dispatch (context=context@entry=0x2644710) at /build/glib2.0-3UmwzF/glib2.0-2.46.0/./glib/gmain.c:3769
  [Error: gmain.c was not found in source tree]
#10 0x00007fe10c08e250 in g_main_context_iterate (context=0x2644710, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-3UmwzF/glib2.0-2.46.0/./glib/gmain.c:3840
  [Error: gmain.c was not found in source tree]
#11 0x00007fe10c08e572 in g_main_loop_run (loop=0x3c39b40) at /build/glib2.0-3UmwzF/glib2.0-2.46.0/./glib/gmain.c:4034
  [Error: gmain.c was not found in source tree]
#12 0x00007fe10d9edd76 in meta_run () at core/main.c:437
  432:    * environment.  These propagate to child processes.
  433:    */
  434:   g_setenv ("GJS_DEBUG_OUTPUT", "stderr", TRUE);
  435:   g_setenv ("GJS_DEBUG_TOPICS", "JS ERROR;JS LOG", TRUE);
  436: 
  437:   shell_init_debug (g_getenv ("SHELL_DEBUG"));
  438: 
  439:   shell_dbus_init (meta_get_replace_current_wm ());
  440:   shell_a11y_init ();
  441:   shell_perf_log_init ();
  442:   shell_introspection_init ();
#13 0x000000000040208d in main (argc=1, argv=0x7ffdef855308) at main.c:462
  457: 
  458:   _shell_global_init ("session-mode", session_mode, NULL);
  459: 
  460:   shell_prefs_init ();
  461: 
  462:   ecode = meta_run ();
  463: 
  464:   if (g_getenv ("GNOME_SHELL_ENABLE_CLEANUP"))
  465:     {
  466:       g_printerr ("Doing final cleanup...\n");
  467:       g_object_unref (shell_global_get ());