linux升级或安装程序后无法进入图形界面

报错如下：

Failed to start the X server (your graphical interface). lt is likely that it is not set up correctly.

Would you like to view the X server output to diagnose the problem ?

解决办法：

#cat /var/log/Xorg.0.log | grep EE           查看报错日志

#sh NVDIA                                                      重新安装显卡驱动