How to resolve black screen issue after entering the graphical interface in CentOS?

When CentOS enters the graphical interface and displays a black screen, it may be due to the following reasons:

1. Graphics card driver issue: Some graphics card drivers may be incompatible with the CentOS system, causing a black screen. You can try updating the graphics card driver or switching to another driver.
2. There may be an issue with the graphical interface settings that is causing the black screen. You can try resetting the graphical interface settings or reconfiguring them through the command line interface.
3. Configuration file corruption: Some configuration files may have been damaged or deleted, causing the graphical interface to not start properly. You can try to restore or regenerate the relevant configuration files.

Solution:

1. Switch to the command line interface: If a black screen appears after entering the graphical interface, you can switch to the command line interface by pressing Ctrl+Alt+F2 (or another F key). Try resolving the issue through the command line interface.
2. Resetting the graphic interface settings can be done using the following command in the command line interface:
3. Move the file xorg.conf from the directory /etc/X11/ to a backup file xorg.conf.bak in the same directory.
4. This command will backup the current graphical interface setting file and generate a new default setting file.
5. Update your graphics card driver: You can try updating your graphics card driver, or switch to another compatible driver. For specific steps, you can refer to the official documentation of the graphics card driver or relevant forums.
6. Check configuration files: Verify if the relevant configuration files have been damaged or deleted. For example, you can check the integrity of files such as /etc/X11/xorg.conf and proceed with repairs or regeneration if necessary.

If the above methods are not able to solve the issue, you can try reinstalling the CentOS system or seeking further help from the CentOS community or forum.