xnest求助

midx

gdm-2.6.0.6，运行gdmflexiserver --xnest(嵌套窗口中的新登录)，以其他用户登录会出现如附图信息,点击图中的ok程序即退出。
~/.xsession-errors:

1. /etc/X11/gdm/PreSession/Default: Registering your session with wtmp and utmp
   
2. /etc/X11/gdm/PreSession/Default: running: /usr/bin/X11/sessreg -a -w /var/log/wtmp -u /var/run/utmp -x "/var/gdm/:20.Xservers" -h "" -l ":20" "root"
   
3. /etc/X11/gdm/Xsession: Beginning session setup...
   
4. using configure file /etc/xinput/xinput.conf
   
5. you should specify a X Input Method server, such as fcitx, scim, skim etc..
   
6. 050109 195042:MESG:服务启动.
   
7. find.../etc/xinput/im/fcitx, now set imserver to /etc/xinput/im/fcitx
   
8. setting QT_IM_MODULE to XIM!
   
9. setting GTK_IM_MODULE to XIM!
   
10. Xlib: connection to ":0.0" refused by server
    
11. Xlib: No protocol specified
    
12. Error: FCITX can only run under X
    
13. /etc/X11/gdm/Xsession: Setup done, will execute: /usr/bin/ssh-agent -- gnome-session
    
14. Xlib: connection to ":0.0" refused by server
    
15. Xlib: No protocol specified
    
16. (gnome-session:471): Gtk-WARNING **: cannot open display:  

复制代码

是哪里出了问题呢？