检查CDE有没有安装：

root@server1://>lslpp -al|grep -i cde
X11.Dt.ToolTalk 6.1.4.0 COMMITTED AIX CDE ToolTalk Support
6.1.6.15 APPLIED AIX CDE ToolTalk Support
X11.Dt.bitmaps 6.1.0.0 COMMITTED AIX CDE Bitmaps
X11.Dt.helpmin 6.1.2.0 COMMITTED AIX CDE Minimum Help Files
X11.Dt.helprun 6.1.4.0 COMMITTED AIX CDE Runtime Help
6.1.6.0 APPLIED AIX CDE Runtime Help
X11.Dt.lib 6.1.4.1 COMMITTED AIX CDE Runtime Libraries
6.1.6.15 APPLIED AIX CDE Runtime Libraries
(CDE) 1.0
(CDE) 1.0
X11.Dt.ToolTalk 6.1.4.0 COMMITTED AIX CDE ToolTalk Support
X11.Dt.bitmaps 6.1.0.0 COMMITTED AIX CDE Bitmaps
X11.Dt.helpmin 6.1.2.0 COMMITTED AIX CDE Minimum Help Files
(CDE) 1.0
(CDE) 1.0

检查CDE的守护进程有没有启动：

root@server1:/etc/>ps -ef|grep dt
root 7536694 6029386 0 13:56:38 pts/0 0:00 grep dt
root 7733286 1 0 14:37:46 – 0:00 /usr/dt/bin/dtlogin -daemon

检查X11的监听端口有没有打开：

root@server1://>netstat -an|grep .177
udp4 0 0 *.177 *.*

启动CDE方法，运行启动脚本：

root@server1://>/etc/rc.dt