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Description of problem: I was executing the outputs test of the Test_Day:2016-11-03_BetterSwitchableGraphicsSupport. Repeatedly inserting/removing the HDMI cable caused this crash. Other details: - Hybrid graphics laptop (Intel + NVIDIA GTX 965M) - HDMI port is wired to the dGPU. - Internal monitor is 1920x1080 - External monitor is a Dell U2515H (2560x1440) - Running "Switchable Test Day live image" Version-Release number of selected component: gnome-settings-daemon-3.22.1-1.fc25 Additional info: reporter: libreport-2.8.0 backtrace_rating: 4 cmdline: /usr/libexec/gnome-settings-daemon crash_function: real_assign_crtcs executable: /usr/libexec/gnome-settings-daemon global_pid: 2406 kernel: 4.8.4-301.fc25.x86_64 pkg_fingerprint: 4089 D8F2 FDB1 9C98 pkg_vendor: Fedora Project runlevel: N 5 type: CCpp uid: 1000 Truncated backtrace: Thread no. 1 (10 frames) #0 real_assign_crtcs at gnome-rr-config.c:941 #1 crtc_assignment_new at gnome-rr-config.c:1068 #2 gnome_rr_config_apply_helper at gnome-rr-config.c:628 #3 gnome_rr_config_apply at gnome-rr-config.c:650 #4 apply_configuration at gsd-xrandr-manager.c:347 #5 handle_fn_f7 at gsd-xrandr-manager.c:1007 #6 gsd_xrandr_manager_2_video_mode_switch at gsd-xrandr-manager.c:364 #7 handle_method_call_xrandr_2 at gsd-xrandr-manager.c:1365 #8 handle_method_call at gsd-xrandr-manager.c:1394 #9 call_in_idle_cb at gdbusconnection.c:4836 Potential duplicate: bug 1044713
Created attachment 1217547 [details] File: backtrace
Created attachment 1217548 [details] File: cgroup
Created attachment 1217549 [details] File: core_backtrace
Created attachment 1217550 [details] File: dso_list
Created attachment 1217551 [details] File: environ
Created attachment 1217552 [details] File: exploitable
Created attachment 1217553 [details] File: limits
Created attachment 1217554 [details] File: maps
Created attachment 1217555 [details] File: mountinfo
Created attachment 1217556 [details] File: namespaces
Created attachment 1217557 [details] File: open_fds
Created attachment 1217558 [details] File: proc_pid_status
Created attachment 1217559 [details] File: var_log_messages
The above situation had runtime PM disabled (via nouveau.runpm=0). With runtime PM enabled (but acpi_osi="!Windows 2015" due to bug 1354256), this is visible: 33.632330 kernel: nouveau 0000:01:00.0: DRM: resuming kernel object tree... 33.876456 kernel: nouveau 0000:01:00.0: priv: GPC0: 419df4 00000000 (1a40820e) 33.876653 kernel: nouveau 0000:01:00.0: priv: GPC1: 419df4 00000000 (1a40820e) 33.895865 kernel: nouveau 0000:01:00.0: DRM: resuming client object trees... 33.895997 kernel: nouveau 0000:01:00.0: DRM: resuming display... 33.896117 kernel: nouveau 0000:01:00.0: DRM: resuming console... 38.884466 gnome-settings-[2274]: gnome_rr_output_list_modes: assertion 'output != NULL' failed 38.885187 kernel: show_signal_msg: 12 callbacks suppressed 38.885214 kernel: gnome-settings-[2274]: segfault at 0 ip 00007f6c3631a5bd sp 00007fff808d3650 error 4 in libgnome-desktop-3.so.12.2.0[7f6c362fe000+37000]
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Fedora 25 changed to end-of-life (EOL) status on 2017-12-12. Fedora 25 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.