yum VNC后，启动时出错/usr/bin/Xvnc: symbol lookup error

 动 vnc服务时报"usr/bin/Xvnc: symbol lookup error: /usr/bin/Xvnc: undefined symbol:

pixman_composite_trapezoids" 的错误

解决办法：yum install pixman pixman-devel libXfont －y