CentOS crash cannot start graphical interface solution

This problem occurs twice. centos6.4 was used once a year ago, and centos6.5 was recently used. The reason should not be accidental, but I do not know how this problem occurs for the moment...

When centos is installed for the first time, the page progress bar is displayed. After the system crashes, the system add-on cannot be found and grub is displayed...

After the bootloader is reinstalled with the installation disk, the startup interface changes and becomes a circular progress bar. I don't know why...

After a circular progress bar is started, the command line interface cannot be started.

Startx reports the following error:

No devices detected

Fatal server error:
No screens found

After a long time, I was unable to solve the problem. Later, I saw an article on the Internet.

The following is a solution.

Go to/etc/X11/xorg. conf and check the configuration file. This should be a problem with the VGA driver.

/Xorg. conf configuration file corruption

Re-create a new xorg. conf configuration file. replace it with the following:

Yum install xorg-x11-server-Xorg

Xorg-configure: 0

Cp/root/xorg. conf. new/etc/X11/xorg. conf

Startx

Maybe the xorg command is a little different. This is probably the case. It's not clear. Try it several times --