Bug 1304369

Description of problem:
Because the suspend in Mate doesn't work, I use a script to suspend my system at night:
#!/bin/bash
/usr/bin/dbus-send --system --print-reply   --dest="org.freedesktop.login1"   /org/freedesktop/login1 org.freedesktop.login1.Manager.Suspend boolean:true

Usually, it works fine. This morning, I hit the power button on my laptop to unsuspend it and one of my external monitors did not start. I went to System and then Displays. I tried hitting just the apply button since the monitors were all detected, but that didn't bring back the second external monitor. It was just a few seconds after this that the program crashed, but I'm not 100% sure on exactly where I clicked, if anywhere. It may have been to try unchecking one of the monitors or maybe hitting apply again. 



Version-Release number of selected component:
mate-control-center-1.12.1-2.fc24

Additional info:
reporter:       libreport-2.6.3
backtrace_rating: 4
cmdline:        mate-display-properties
crash_function: g_type_check_instance_cast
executable:     /usr/bin/mate-display-properties
global_pid:     1029
kernel:         4.5.0-0.rc0.git1.1.fc24.x86_64
runlevel:       N 5
type:           CCpp
uid:            1000

Truncated backtrace:
Thread no. 1 (10 frames)
 #0 g_type_check_instance_cast at gtype.c:4065
 #1 on_output_event at xrandr-capplet.c:1575
 #2 emit_input at scrollarea.c:1016
 #3 process_event at scrollarea.c:1066
 #4 process_gdk_event at scrollarea.c:1103
 #5 foo_scroll_area_motion at scrollarea.c:1134
 #6 _gtk_marshal_BOOLEAN__BOXED at gtkmarshalers.c:86
 #11 gtk_widget_event_internal at gtkwidget.c:5017
 #12 gtk_widget_event at gtkwidget.c:4814
 #13 gtk_propagate_event at gtkmain.c:2501