Description of problem: This became common on Fedora 18. After avery second boot my Gnome is restarted direct after logon. Version-Release number of selected component: gnome-shell-3.6.3-2.fc18 Additional info: backtrace_rating: 3 cmdline: /usr/bin/gnome-shell executable: /usr/bin/gnome-shell kernel: 3.7.8-202.fc18.x86_64 remote_result: NOTFOUND uid: 1000 Truncated backtrace: Thread no. 1 (10 frames) #0 ?? #1 __glXGetCurrentContext at glxcurrent.c:139 #2 __glXGetVideoSyncSGI at glxcmds.c:1843 #3 _cogl_winsys_get_vsync_counter at winsys/cogl-winsys-glx.c:1159 #4 _cogl_winsys_onscreen_swap_buffers at winsys/cogl-winsys-glx.c:1355 #5 cogl_onscreen_swap_buffers at ./cogl-onscreen.c:155 #6 clutter_stage_cogl_redraw at cogl/clutter-stage-cogl.c:498 #7 clutter_stage_do_redraw at ./clutter-stage.c:1170 #8 _clutter_stage_do_update at ./clutter-stage.c:1228 #9 master_clock_update_stages at ./clutter-master-clock.c:386 Potential duplicate: bug 859698
Created attachment 699888 [details] File: backtrace
Created attachment 699889 [details] File: cgroup
Created attachment 699890 [details] File: core_backtrace
Created attachment 699891 [details] File: dso_list
Created attachment 699892 [details] File: environ
Created attachment 699893 [details] File: limits
Created attachment 699894 [details] File: maps
Created attachment 699895 [details] File: open_fds
Created attachment 699896 [details] File: proc_pid_status
Created attachment 699897 [details] File: smolt_data
Created attachment 699898 [details] File: var_log_messages
during login (gnome shell start) backtrace_rating: 3 Package: gnome-shell-3.6.3.1-1.fc18 OS Release: Fedora release 18 (Spherical Cow)
seems to be already fixed, not sure about version, but in F19 working as expected