How to solve the problem that the black screen of ubuntu fails to enter the system

When you encounter the problem that the black screen cannot enter the system after boot on Ubuntu, you can try the following solutions:

1. Check the hardware connection: ensure that all cable connections are secure and not loose or damaged.
2. Enter recovery mode: Restart the computer, press and hold the Shift key during boot to enter recovery mode. Select "resume" or "fsck" from the recovery menu to repair file system errors.
3. Update and uninstall the graphics card driver: In recovery mode, select Network to enable network connectivity. Then open the terminal and run the following command to update the system:

    sudo apt update sudo apt upgrade
   

   If possible, uninstall and reinstall the graphics card driver.

4. Reconfigure the Xorg server: On the terminal, run the following command to back up and reconfigure the Xorg server:

    sudo mv /etc/ X11 /xorg.conf / etc /X11/ xorg.conf.backup sudo dpkg-reconfigure xserver-xorg

5. Repair damaged software package: In recovery mode, select Network to enable network connection. Then open the terminal and run the following command to repair the damaged software package:

    sudo apt install -f

6. Delete temporary files: On the terminal, run the following command to delete temporary files that may cause problems:

    sudo rm /tmp/ * -r

7. Install other desktop environments: If the problem persists, you can try to install other desktop environments, such as GNOME and KDE, and select the newly installed desktop environment when logging in.

If none of the above methods is effective, more in-depth troubleshooting or reinstallation of the system may be required.