Description of problem:
install fedora-23/xfce from offcial fedoraproject site inside virtualbox-5.0
sudo dnf update
sudo reboot
sudo install kernel-devel gcc
sudo reboot
after reboot screen resolution is 1024x758 or something, then running Application/Config or whatever -> Display; it segfaults every time

Version-Release number of selected component:
xfce4-settings-4.12.0-6.fc23

Additional info:
reporter:       libreport-2.6.4
backtrace_rating: 4
cmdline:        xfce4-display-settings
crash_function: convert_xfce_output_info
executable:     /usr/bin/xfce4-display-settings
global_pid:     1936
kernel:         4.4.9-300.fc23.x86_64
runlevel:       N 5
type:           CCpp
uid:            1000

Truncated backtrace:
Thread no. 1 (10 frames)
 #0 convert_xfce_output_info at main.c:1618
 #1 list_connected_outputs at main.c:1786
 #2 on_area_paint at main.c:2589
 #7 foo_scroll_area_expose at scrollarea.c:522
 #8 _gtk_marshal_BOOLEAN__BOXED at gtkmarshalers.c:86
 #13 gtk_widget_event_internal at gtkwidget.c:5017
 #14 gtk_widget_send_expose at gtkwidget.c:4846
 #15 gtk_container_propagate_expose at gtkcontainer.c:2757
 #16 gtk_container_expose at gtkcontainer.c:2661
 #17 _gtk_marshal_BOOLEAN__BOXED at gtkmarshalers.c:86

Potential duplicate: bug 1287718