How to Increase Resolution for Ubuntu or Linux in Virtualbox

When a new Virtual Machine, or Virtual PC, is setup in Virtualbox for Ubuntu, or another Linux flavor, the screen size and screen resolution may be fixed smaller than your maximum resolution setting. This problem can be fixed by installing Guest Additions.
Guest Additions comes with Virtualbox, but is installed after you setup your Virtual Machine, or Guest OS, to add features such as increased screen size or screen resolution. On the test PC for this example the maximum resolution is 1280 x 1024. After loading Ubuntu under Virtualbox bring up the Display Preference by going into System -> Preferences -> Display. The maximum resolution option listed is 800 x 600.


Installing Guest Additions from Gnome Desktop
To get a bigger screen resolution we will need to install Guest Additions. On the Virtualbox File Menu click on Devices -> Install Guest Additions.
You should now see a vboxadditions_x file now located on your Ubuntu desktop.
To open the vboxadditions file either double click on the file, or right-click and then click Open.
Now double click the file. The vboxadditions file contains installation choices for a few different Linux versions including both 32 bit and 64 bit versions. By using the file you allow the script to automatically detect, and install the right software for your OS.
Now Click on Run
The will open a Shell window and begin installing the files.
Once the file has completed installing the Guest Additions software all you have to do is hit Enter to close the Window.
Now reboot Ubuntu for the new files to load properly.
After you return to the Ubuntu desktop click System -> Preferences -> Display.
Under Display Preferences you will see the resolution is at 1152 x 864, which is still not the maximum resolution.
On the Virtualbox File Menu click on Machine -> Fullscreen Mode.
Once in Fullscreen Mode go to System -> Preferences -> Display again, and you will now see the maximum screen resolution is 1280 x 1024.


!Enjoy Virtual Box in Wide Screen 🙂

About Manish Jha

Hi All I am Manish Kumar Jha aka Alex Hunt. I am currently working in Iono,Inc as Cloud Solutions Architect. I have around 8 Years of IT experience and have exposure on VMware vSphere, vCloud Director, RHEL and modern data center technologies like Cisco UCS and Cisco Nexus 1000v and NSX. If you find any post informational to you please press like and share it across social media and leave your comments if you want to discuss further on any post. Disclaimer: All the information on this website is published in good faith and for general information purpose only. I don’t make any warranties about the completeness, reliability and accuracy of this information. Any action you take upon the information you find on this blog is strictly at your own risk. The Views and opinions published on this blog are my own and not the opinions of my employer or any of the vendors of the product discussed.
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1 Response to How to Increase Resolution for Ubuntu or Linux in Virtualbox

  1. Pingback: Installing Ubuntu 13.04 amd64 on Virtualbox | The Enigma

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