fedora 莫名的 崩溃，退回到 gdm 登录界面

57lvii

各位兄台，我的 fedora 从安装到，现在，经常会莫名的崩溃，
重新退回到登录界面，有时一天 crash 2,3次，有时平安无视
最多的时候 crash 5-6 次。悲剧啊阿阿

查看 /var/log/messages 日志如下：

1. 
   
2. Jun  2 13:38:55 ink abrt[6649]: saved core dump of pid 1716 (/usr/bin/Xorg) to /var/spool/abrt/ccpp-1306993135-1716.new/coredump (25780224 bytes)
   
3. Jun  2 13:38:55 ink abrtd: Directory 'ccpp-1306993135-1716' creation detected
   
4. Jun  2 13:38:55 ink gnome-keyring-daemon[1953]: dbus failure unregistering from session: Connection is closed
   
5. Jun  2 13:38:55 ink gnome-keyring-daemon[1953]: dbus failure unregistering from session: Connection is closed
   
6. Jun  2 13:38:55 ink pulseaudio[6684]: pid.c: Stale PID file, overwriting.
   
7. Jun  2 13:38:55 ink pulseaudio[6684]: main.c: Unable to contact D-Bus: org.freedesktop.DBus.Error.NoServer: Failed to connect to socket /tmp/dbus-NWc5TPmP41: Connection refused
   
8. Jun  2 13:38:55 ink pulseaudio[6690]: pid.c: Daemon already running.
   
9. Jun  2 13:38:55 ink abrtd: Crash is in database already (dup of /var/spool/abrt/ccpp-1306319974-1654)
   
10. Jun  2 13:38:55 ink abrtd: Deleting crash ccpp-1306993135-1716 (dup of ccpp-1306319974-1654), sending dbus signal
    
11. Jun  2 13:38:56 ink rtkit-daemon[1885]: Successfully made thread 6753 of process 6753 (/usr/bin/pulseaudio) owned by '42' high priority at nice level -11.
    
12. Jun  2 13:38:56 ink rtkit-daemon[1885]: Successfully made thread 6755 of process 6753 (/usr/bin/pulseaudio) owned by '42' RT at priority 5.
    
13. Jun  2 13:38:56 ink gdm-simple-greeter[6742]: Gtk-WARNING: gtkwidget.c:5691: widget not within a GtkWindow
    
14. Jun  2 13:38:56 ink rtkit-daemon[1885]: Successfully made thread 6757 of process 6753 (/usr/bin/pulseaudio) owned by '42' RT at priority 5.
    
15. Jun  2 13:38:56 ink gdm-simple-greeter[6742]: WARNING: Unable to load CK history: no seat-id found
    
16. Jun  2 13:39:02 ink gdm-simple-greeter[6742]: WARNING: Failed to send buffer
    
17. Jun  2 13:39:03 ink rtkit-daemon[1885]: Successfully made thread 6864 of process 6864 (/usr/bin/pulseaudio) owned by '500' high priority at nice level -11.
    
18. Jun  2 13:39:03 ink pulseaudio[6864]: pid.c: Daemon already running.
    
19. Jun  2 13:39:04 ink NetworkManager[1319]: user_proxy_init: assertion `priv->user_proxy == NULL' failed
    
20. Jun  2 13:39:04 ink dbus-daemon: [system] Rejected send message, 2 matched rules; type="method_call", sender=":1.93" (uid=500 pid=6849 comm="nautilus) interface="org.freedesktop.DBus.Properties" member="GetAll" error name="(unset)" requested_reply=0 destination=":1.17" (uid=0 pid=1730 comm="/usr/sbin/console-kit-daemon))
    

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各位，请问问题出在哪里，是那个软件导致的问题，可否解决？谢谢