How to Change Resolution of a Linux VM in VirtualBox

When we create a new machine in the VirtualBox and install an operating system, the VirtualBox sets a default screen resolution of 800×600(4:3). However, while working in a Virtual Machine, we often need to have a screen resolution of our own choice. Therefore, there are two ways to change the resolution of any Virtual Machine in VirtualBox.

  • By changing the display settings of the Linux operating system
  • By installing VirtualBox Guest Addition Image

We will be using the Ubuntu 20.10 operating system installed in VirtualBox and try both of the above-provided methods to change the screen resolution.

Method 1: Change Display Settings

The simplest and quickest way to have a screen resolution of your choice is to change the screen resolution from the display settings of the Linux operating system.

First, go to the settings of the operating system.

In Ubuntu or any other Linux-based operating system, open the application menu.

Search for “settings” and open the settings by clicking on the Settings icon from the appeared search results.

Scroll down through the left menu bar and click on the Display settings.

In the display settings section, click on the resolution drop-down menu.

From the drop-down menu, simply choose the resolution of your choice.

After choosing the suitable resolution of your choice, a green-colored “Apply” button will appear on the top right corner of the window.

Click on the Apply button and confirm the changed resolution by clicking on the “Keep changes” button that appeared in the pop-up box.

This is it. You have changed the screen resolution of your own choice by changing the display settings of the Linux Operating system.

The limitation of this method is that we have a limited number of options available for changing the screen resolution.

For example, you want to have the screen resolution precisely equal to the screen size of your laptop, but that resolution is not available. In such a scenario, installing VirtualBox Guest Addition comes in handy.

Installation of VirtualBox Guest Addition Image

To install guest additional image in your Virtual Machine, follow the procedure given below:

Step 1: Open the terminal of the operating system and execute the command provided below to install some necessary packages for installing Guest Addition Image:

For Ubuntu or Debian-based operating systems:

For CentOS or RHEL-based operating systems:

After installing the required packages, insert the Guest Addition CD image.

Article post on:

Step 2:  Click on the “Devices” in the menu bar of the Virtual machine and select “Insert Guest Addition CD image” from the “Devices” menu:

The installation will complete in a while.

Once it gets completed, it will ask to reboot the system.

Step 3: Restart the machine, and if it gets successfully inserted and installed, the screen size will automatically be resized according to the size of the window.

But if it is not working for you, then it means that the guest Addition Image is not inserted successfully. You have to insert it manually.

Insert Guest Addition CD Image Manually

First, create a new /mnt/cdrom directory:

After creating, mount the image to the /mnt/cdrom:

Change directory to the /mnt/cdrom and execute the “” script:


Once the script has finished the execution, reboot the system using the command mentioned below:

After rebooting the machine, the screen size will adjust accordingly. However, it will work perfectly fine now.

You can now easily switch to the full-screen and work with ease on your Linux Virtual Machine.


This post has covered all the basic to pro-level concepts and methods to install the Guest Addition CD Image to change the resolution on any Linux operating system in the virtual machine using the simple way and manually from the terminal. In addition, we have learned to resize the screen resolution by changing the display settings of the operating system.

— Update: 19-03-2023 — found an additional article How To Change The Screen Resolution In Kali Linux VirtualBox from the website for the keyword how to change resolution on kali linux virtualbox.

If you are using Kali Linux in VirtualBox, you may have noticed that the screen resolution is not set to the optimal size. This can be easily changed in the VirtualBox settings. Here’s how:
1. Start by opening the VirtualBox application.
2. Select the Kali Linux virtual machine from the list of machines on the left.
3. Click on the “Settings” button.
4. In the “Settings” window, go to the “Display” section.
5. Under the “Screen” heading, you will see a drop-down menu for “Screen Resolution.”
6. Select the desired screen resolution from the drop-down menu.
7. Click on the “OK” button to save the changes.
Now, when you boot up Kali Linux in VirtualBox, the screen resolution will be set to the size you selected.

Some buttons and fonts may need to be changed after you’ve started Kali Linux. It could be caused by the High Dynamic Point (aka High DPI). Some of the reasons for this problem may have been the presence of graphic card drivers or monitor profiles. Value can be found either by tapping it or by going to the Resolution menu. A guest’s interface in Windows 10 is automatically improved when the guest is a guest. To adjust the size of the VM window, move your mouse pointer over the top of its graphical user interface. GTK3 and OpenGL 3.0 are the most popular versions of GTK3 and OpenGL 3.0, respectively.

To configure a full-screen mode, simply press the “Host” key in the right hand corner. VirtualBox will automatically adjust the resolution and screen size.

To begin, open the terminal by typing xrandr -s 1280×1080 (the dimension you want).

Via @:

How Do I Get 1920×1080 Resolution In Virtualbox?

There are a few ways that you can go about getting 1920×1080 resolution in VirtualBox. One way is to go into the settings for your virtual machine and change the display settings to 1920×1080. Another way is to install the Guest Additions for VirtualBox, which will automatically adjust the display resolution to match the host machine.

VirtualBox determines the default screen resolution for an operating system installation in terms of 800*600(4:3). VirtualBox allows you to change the resolution of any virtual machine by using two methods. You can change the screen resolution of your operating system’s settings by going to the settings page. Installing VirtualBox Guest Addition Image is also a viable option. When installing the required packages, the Guest Addition CD image should be inserted after the installation is complete. If it is successfully installed and inserted, the screen size will be automatically scaled down according to the size of the window, resulting in a larger display. It should be possible to insert it manually if it is not working properly.

How Do I Make Virtualbox Full Hd?

You can enter full-screen mode by pressing theHost Key and theF simultaneously. Alternatively, you can switch to fullscreen by clicking the View menu at the top of the window and then selecting Switch to Fullscreen. This dialog box displays information about VirtualBox’s full-screen mode.

How Do I Change Virtualbox Vm Resolution?

Credit: Ask Ubuntu

When using Microsoft Windows in a virtual machine, for example, you can change the virtual machine’s screen resolution by selecting Settings, System, and Display from the Start menu. You can choose either a higher or lower value by using the Resolution menu.

When you install Windows in VirtualBox, you will not be able to change the default screen resolution. A low resolution may suffice for some tasks, but it may be beneficial for others. There is no need to unlock and scale supported screen resolutions to suit your specific requirements. The installation of Windows can begin in a virtual machine by right-clicking on one of the files and selecting open from the context menu. The User Account Control prompt appears in Windows, requiring you to click Yes to activate it. You can see the installation process’s actions by clicking the install button once it has been launched.

Why Is My Kali Linux Screen So Small?

If you start Kali Linux with a smaller version than expected, certain items (for example, buttons or text) may appear. HiDPI (aka High Dynamic Potential) is thought to be a factor. The software in question, as well as how it was created (e.g. GTK2, GTK3, and Qt5), all have an impact on how it works.

Kali Vm Change Resolution

Kali Linux is a Debian-derived Linux distribution designed for digital forensics and penetration testing. It is a free and open source operating system with over 600 penetration-testing tools available in its repositories.
Kali Linux can be run from a live CD or live USB, or it can be installed on a hard drive. It is available in both 32-bit and 64-bit editions.
The default desktop environment in Kali Linux is GNOME. However, Kali also provides a choice of other desktop environments, including KDE, LXDE, and Xfce.
Kali Linux has a tool called “kali-vm-change-resolution” which can be used to change the resolution of a virtual machine. This tool is available in the “Kali Linux Repository” and can be installed using the following command:
apt-get install kali-vm-change-resolution

Kali Linux Resolution Problem

I have been having an issue with my resolution in Kali Linux ever since I installed it. I have tried various solutions that I found online, but nothing has worked so far. My screen resolution is stuck at 1024×768, and I can’t seem to change it. I have tried editing the xorg.conf file, but that didn’t work either. If anyone has any suggestions, I would greatly appreciate it.

Users who ask questions on are not responsible for receiving the answers or solutions they request. All answers or responses are made by users, so we have no way of proving their validity or correctness. Vote for the answer that helped you, so that others can find out what is the most helpful. is not responsible for the answers and solutions to questions submitted by users. We do not have evidence of validity or correctness for all answers or responses we receive from users. To assist others, vote for the answer that was most helpful to you. Users of do not have any responsibility for the answers or solutions that they provide. The validity or correctness of any question or response generated by users is not guaranteed. Voting for the answer that helped you most will help others find the most useful answers.

Kali Linux Change Screen Resolution Command Line

Under settings, you’ll find a device-specific menu. In this section, you should be able to change your resolution.

If your computer displays a resolution of 800X600, select it from the Systran Box In Devices. Alternatively, you could use xrandr, which is now the default command for a majority of modern Linux distributions. In the event of an error, the guest resolution will be changed automatically using the settings in your VM. It could be caused by the HiDPI (also known as high dynamic range) system. The xrandr extension, which is included with the vast majority of modern Linux distributions, can be used to change the resolution. In the Resolution drop-down menu, there is a list of recommended resolutions for your display.

Can You Change Resolution With Cmd?

By typing CMD into the “QRes” folder address bar, you can open Command Prompt from the address bar. To use the command, change the path of the QRes.exe file so that it has a supported width (x) and height (y). The following are examples of resolutions: 1366 x 768, 1440 x 1680, 900 x 1050, 1920 x 1080, 1920 x 1080, 1440 x 1440, and so on.

Advanced Startup Options: What To Enable And Disable For Better Performance

Select “Show advanced settings” from the General tab. Under Performance, you can select the startup type. UnderStartup settings, you can add advanced startup options. Hide advanced startup options (recommended) is as simple as selecting Advanced startup options.
By disabling or enabling certain startup options, you can now determine whether they affect performance. If you disable the Automatic restart option, you may notice that it does not restart as quickly.

How To Increase Kali Linux Screen Size In Vmware

There are a few ways that you can increase the screen size of Kali Linux in VMware. One way is to change the resolution of your host machine and then change the resolution of your guest machine to match. Another way is to change the display settings in the VMware settings for your guest machine.

In Kali Linux, you may temporarily notice larger objects (buttons, text, or fonts) than you would normally expect. This could be due to HiDPI (aka High Dynamic Potential). By selecting one of the devices, you can change the display settings in Settings. When you use the Full Screen icon in a Kali Linux VM, you can enter a full-screen mode. How do I change virtualbox settings? Under Preferences, you’ll find File. By holding down the top left button, you can select Display from the Guest Screen Size option. It is possible to specify a height or width that is arbitrary, constant, or both.

Virtualbox Kali Linux

Kali Linux is a Debian-based Linux distribution designed for digital forensics and penetration testing. It is maintained and funded by Offensive Security Ltd. The first public release was Kali 1.0 in March 2013.
Kali Linux is pre-installed with over 300 penetration-testing programs, including Armitage (a graphical cyber attack management tool), nmap (a port scanner), Wireshark (a packet analyzer), John the Ripper (a password cracker), Aircrack-ng (a software suite for penetration-testing wireless LANs), Burp suite and OWASP ZAP (both web application security scanners). Kali also includes many tools related to forensics, such as the Sleuth Kit and GNU Debugger.

VirtualBox, in addition to running virtual machines (VMs), can also be used to run Kali Linux. VirtualBox can be installed as a virtual machine, depending on your preferences, as part of our guide. In general, make sure the Kali Linux version is up to date and that the machine has been rebooted if necessary. If yours differs from the one shown below, you will need to make some changes.

Kali Linux Screen Small

Kali Linux is a Debian-derived Linux distribution designed for digital forensics and penetration testing. It is maintained and funded by Offensive Security Ltd.
Kali Linux was released on the 13th of March, 2013, and is available in both 32-bit and 64-bit versions.
The default desktop environment in Kali Linux is GNOME, but other desktop environments such as KDE, Xfce, and LXDE are also available.
Kali Linux is pre-installed with over 600 penetration-testing programs, making it one of the most powerful penetration testing distributions available.

How To Resize And Move Windows Around The Screen In Linux

You can reposition windows and move them around the screen by using the keyboard shortcuts Alt F7 and Alt F8. The arrow keys can also be used to move and resize windows. Drag a window to the top of the screen so that you can maximize it.


Article post on:

Leave a Comment

Your email address will not be published. Required fields are marked *