Description of problem: Switched from both monitors to external monitor via Super+P. Version-Release number of selected component: xfce4-panel-4.12.0-4.fc23 Additional info: reporter: libreport-2.6.3 backtrace_rating: 4 cmdline: xfce4-panel crash_function: pager_plugin_screen_layout_changed executable: /usr/bin/xfce4-panel global_pid: 1614 kernel: 4.2.5-300.fc23.x86_64 runlevel: N 5 type: CCpp uid: 1000 Truncated backtrace: Thread no. 1 (7 frames) #0 pager_plugin_screen_layout_changed at pager.c:317 #4 g_signal_emit_by_name at gsignal.c:3479 #5 process_monitors_change at gdkscreen-x11.c:1163 #6 _gdk_x11_screen_size_changed at gdkscreen-x11.c:1198 #7 gdk_event_translate at gdkevents-x11.c:2174 #8 _gdk_events_queue at gdkevents-x11.c:2358 #14 gtk_main at gtkmain.c:1268 Potential duplicate: bug 1224649
Created attachment 1090519 [details] File: backtrace
Created attachment 1090520 [details] File: cgroup
Created attachment 1090521 [details] File: core_backtrace
Created attachment 1090522 [details] File: dso_list
Created attachment 1090523 [details] File: environ
Created attachment 1090524 [details] File: exploitable
Created attachment 1090525 [details] File: limits
Created attachment 1090526 [details] File: maps
Created attachment 1090527 [details] File: mountinfo
Created attachment 1090528 [details] File: open_fds
Created attachment 1090529 [details] File: proc_pid_status
Created attachment 1090530 [details] File: var_log_messages
Does this crash happen everytime you do that or is it sporadic?
Sporadic, cannot reproduce.
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Fedora 23 changed to end-of-life (EOL) status on 2016-12-20. Fedora 23 is no longer maintained, which means that it will not receive any further security or bug fix updates. As a result we are closing this bug. If you can reproduce this bug against a currently maintained version of Fedora please feel free to reopen this bug against that version. If you are unable to reopen this bug, please file a new report against the current release. If you experience problems, please add a comment to this bug. Thank you for reporting this bug and we are sorry it could not be fixed.