Description of problem: I do now know. Laptop had just wake up from sleep. Before I closed the lid I had just used a projector / external monitor with it. Display settings was last gnome-settings option I used before this crash. Version-Release number of selected component: gnome-settings-daemon-3.14.2-1.fc21 Additional info: reporter: libreport-2.3.0 backtrace_rating: 4 cmdline: /usr/libexec/gnome-settings-daemon crash_function: real_assign_crtcs executable: /usr/libexec/gnome-settings-daemon kernel: 3.17.4-301.fc21.x86_64 runlevel: N 5 type: CCpp uid: 1000 Truncated backtrace: Thread no. 1 (10 frames) #0 real_assign_crtcs at gnome-rr-config.c:927 #1 crtc_assignment_new at gnome-rr-config.c:1054 #2 gnome_rr_config_apply_helper at gnome-rr-config.c:614 #3 gnome_rr_config_apply at gnome-rr-config.c:636 #4 apply_configuration at gsd-xrandr-manager.c:346 #5 handle_fn_f7 at gsd-xrandr-manager.c:1000 #6 gsd_xrandr_manager_2_video_mode_switch at gsd-xrandr-manager.c:363 #7 handle_method_call_xrandr_2 at gsd-xrandr-manager.c:1354 #8 handle_method_call at gsd-xrandr-manager.c:1383 #9 call_in_idle_cb at gdbusconnection.c:4884 Potential duplicate: bug 1044713
Created attachment 968148 [details] File: backtrace
Created attachment 968149 [details] File: cgroup
Created attachment 968150 [details] File: core_backtrace
Created attachment 968151 [details] File: dso_list
Created attachment 968152 [details] File: environ
Created attachment 968153 [details] File: exploitable
Created attachment 968154 [details] File: limits
Created attachment 968155 [details] File: maps
Created attachment 968156 [details] File: open_fds
Created attachment 968157 [details] File: proc_pid_status
Created attachment 968158 [details] File: var_log_messages
Another user experienced a similar problem: Resumed laptop, having docked. Hit Fn+F7 which is their soft change output button. Crash dialog. [Having the external monitor go active and the laptop screen off toggle automatically worked great on GNOME 3.10 and 3.12, but as of GNOME 3.14 and/or F21, something there has stopped working - it would go to docked no problem, but resuming on ferry having undocked and on way home in the evening the laptop display was off and the only way to get back was hard reboot (none of the usual tricks like switching to a VT worked). So, I'm using the laptop keyboard's output switcher.] Thinkpad T430, Fedora 21. AfC reporter: libreport-2.3.0 backtrace_rating: 4 cmdline: /usr/libexec/gnome-settings-daemon crash_function: real_assign_crtcs executable: /usr/libexec/gnome-settings-daemon kernel: 3.17.4-301.fc21.x86_64 package: gnome-settings-daemon-3.14.2-1.fc21 reason: gnome-settings-daemon killed by SIGSEGV runlevel: N 5 type: CCpp uid: 2456
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Fedora 21 changed to end-of-life (EOL) status on 2015-12-01. Fedora 21 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.