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How To Fix Ubuntu 20.04 Stuck at Boot Screen After Connecting External Monitor

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If you are a user of the popular Linux distribution, Ubuntu 20.04, you may have encountered a frustrating issue where your system gets stuck at the boot screen after connecting an external monitor. This article will guide you through several steps to troubleshoot and hopefully resolve this problem.

Quick Answer

If your Ubuntu 20.04 gets stuck at the boot screen after connecting an external monitor, try disconnecting the monitor and restarting your system. If that doesn’t work, you can try disabling the splash screen by editing the grub configuration file. If all else fails, seek further assistance from the Ubuntu community through forums or online platforms.

Understanding the Issue

Before we delve into the solutions, it’s important to understand what might be causing the problem. The issue could be related to the graphics driver, the monitor settings, or the system’s boot configuration. While the exact cause can vary, the solutions outlined below will cover a broad range of possibilities.

Step 1: Disconnect the External Monitor

The first and simplest solution is to disconnect the external monitor and restart your system. This will help you determine whether the issue is specifically related to the external monitor or if it’s a more general boot problem.

How to do it:

  • Disconnect the external monitor from your system.
  • Restart your system.
  • If your system boots up normally, the issue is likely related to the external monitor.

Step 2: Disable the Splash Screen

The Ubuntu splash screen is a graphical interface that displays while the system is booting. In some cases, disabling the splash screen can resolve boot issues.

How to do it:

  • Open a terminal by pressing Ctrl + Alt + T.
  • Run the following command to edit the grub configuration file:
sudo nano /etc/default/grub
  • In the file, locate the line that starts with GRUB_CMDLINE_LINUX_DEFAULT.
  • Remove the word “splash” from this line. This disables the splash screen.
  • Save the file and exit the editor by pressing Ctrl + X, then Y to confirm, and finally Enter to exit.
  • Run the following command to update the grub configuration:
sudo update-grub
  • Reboot your system.

Step 3: Seek Further Assistance

If the above steps do not resolve the issue, it may be necessary to seek further assistance. The Ubuntu community is very active and there are many resources available for troubleshooting.

How to do it:

  • Post your issue on the Ubuntu Forums.
  • Ask for help on Ask Ubuntu or the Ubuntu subreddit.
  • Provide as much detail as possible about your system configuration and the steps you have already taken to troubleshoot the issue.

Remember to always backup your important data before making any changes to your system configuration. It’s always better to be safe than sorry!

Conclusion

While the Ubuntu 20.04 stuck at boot screen issue can be frustrating, there are solutions available. By following the steps outlined in this article, you should be able to resolve the problem and get back to using your system as normal. If you continue to experience issues, don’t hesitate to reach out to the Ubuntu community for further assistance.

What should I do if my Ubuntu 20.04 system is stuck at the boot screen after connecting an external monitor?

The first step is to disconnect the external monitor and restart your system. If the system boots up normally, the issue is likely related to the external monitor. If the problem persists, you can try disabling the splash screen by editing the grub configuration file. If none of these solutions work, it is recommended to seek further assistance from the Ubuntu community.

How do I disconnect the external monitor from my Ubuntu 20.04 system?

To disconnect the external monitor, simply unplug the HDMI or DisplayPort cable from your system.

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