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How To Increase Screen Resolution in Ubuntu under VirtualBox on Windows 7

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If you’re running Ubuntu under VirtualBox on Windows 7 and facing issues with screen resolution, this guide is for you. We’ll walk you through a step-by-step process to increase the screen resolution for a more enjoyable and productive experience.

Quick Answer

To increase the screen resolution in Ubuntu under VirtualBox on Windows 7, you can update the Guest Additions, change the Maximum Guest Screen Size setting, upgrade VirtualBox to the latest version, or manually install the Guest Additions. Follow the steps outlined in the post for a more detailed explanation.

Prerequisites

Before we start, ensure you have the following:

  • VirtualBox installed on your Windows 7 system
  • Ubuntu installed as a Virtual Machine (VM) in VirtualBox
  • Internet connection to download any necessary updates

Update Guest Additions

The first step in resolving the screen resolution issue is to update your Guest Additions. Guest Additions are software applications that improve the performance of your guest operating system and enhance its functionality.

To update Guest Additions, open a Terminal in your Ubuntu VM and run the following command:

sudo apt-get install virtualbox-guest-dkms virtualbox-guest-utils virtualbox-guest-x11

This command installs the latest versions of the Guest Additions software. The parameters virtualbox-guest-dkms, virtualbox-guest-utils, and virtualbox-guest-x11 represent different components of the Guest Additions software.

After running the command, restart your Ubuntu VM to complete the installation.

Change Maximum Guest Screen Size

Next, we will adjust the Maximum Guest Screen Size setting in VirtualBox. This setting controls the maximum screen resolution available to the guest operating system.

In Oracle VM VirtualBox Manager, navigate to File -> Preferences -> Display. Change the Maximum Guest Screen Size dropdown from Automatic to None. Click OK to save the changes.

Upgrade VirtualBox

If you’re still facing issues, it might be due to an outdated version of VirtualBox. Upgrading to the latest version can often resolve screen resolution issues.

You can download the latest version of VirtualBox from the official website. After installing the latest version, don’t forget to install its corresponding Guest Additions as well.

Manually Install Guest Additions

If all else fails, you can manually install the Guest Additions. To do this, go to Devices -> Insert Guest Additions CD Image in the VirtualBox menu.

Next, open a terminal in your Ubuntu VM and navigate to the media path (e.g., /media/(user-name)/vbox...). Run the following commands:

sudo apt-get install gcc

This command installs the GNU Compiler Collection (GCC), which is required to compile the Guest Additions software.

Next, run:

./VBoxLinuxAdditions.sh

Or, if the above command doesn’t work, try:

sh VBoxLinuxAdditions.sh

These commands run the script to install the Guest Additions software. Once the installation is complete, reboot your VM.

Conclusion

By following these steps, you should be able to increase the screen resolution of your Ubuntu VM running under VirtualBox on Windows 7. If you’re still facing issues, consider seeking help from the VirtualBox community.

Why is my screen resolution in Ubuntu under VirtualBox on Windows 7 not optimal?

The screen resolution issue in Ubuntu under VirtualBox on Windows 7 is often due to the guest operating system not recognizing the available screen resolutions. This can be resolved by updating the Guest Additions software and adjusting the Maximum Guest Screen Size setting.

How do I update the Guest Additions in Ubuntu?

To update the Guest Additions in Ubuntu, open a Terminal and run the command sudo apt-get install virtualbox-guest-dkms virtualbox-guest-utils virtualbox-guest-x11. This installs the latest versions of the Guest Additions software.

How do I change the Maximum Guest Screen Size in VirtualBox?

To change the Maximum Guest Screen Size in VirtualBox, open Oracle VM VirtualBox Manager, go to File -> Preferences -> Display, and change the dropdown from Automatic to None. Click OK to save the changes.

What should I do if I’m still facing screen resolution issues after updating Guest Additions and adjusting the Maximum Guest Screen Size?

If you’re still facing issues, try upgrading VirtualBox to the latest version. You can download the latest version from the official website. Make sure to also install the corresponding Guest Additions for the new version.

How can I manually install Guest Additions in Ubuntu under VirtualBox?

To manually install Guest Additions, go to Devices -> Insert Guest Additions CD Image in the VirtualBox menu. Then, open a terminal in your Ubuntu VM, navigate to the media path, and run the commands sudo apt-get install gcc, followed by ./VBoxLinuxAdditions.sh or sh VBoxLinuxAdditions.sh. Finally, reboot your VM.

What should I do if I’m still experiencing screen resolution issues after following all the steps?

If you’re still facing issues, consider seeking help from the VirtualBox community. You can visit the VirtualBox forums and ask for assistance from the community members who have expertise in VirtualBox-related issues.

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