Improved display driver that automatically adjusts the screen resolution, when resizing the window of the virtual machine.

They offer quality of life type improvements for working with your virtual machine: The VirtualBox guest additions consist of a set of drivers and kernel modules for the operating system, when installed as a VirtualBox virtual machine. The reason for this is that the Ubuntu 22.04 installer does not install the so called VirtualBox guest additions. For example after resizing the virtual machine window or going into full-screen mode. In you ever installed Ubuntu in a VirtualBox virtual machine, you probably noticed that you can’t change the screen resolution. This article explains how to install the VirtualBox guest additions in an Ubuntu 22.04 virtual machine. Besides automatically adjusting the screen resolution, you also get support for a bi-directional clipboard and shared folders.

When the VM is off, go to the VM settings and make sure to have in the ‘Screen’ section the video memory at maximum (usually 128Mb) moreover the 2D and 3D video acceleration tick must be empty.Bummed that you can’t change the screen resolution in your freshly installed Ubuntu virtual machine? An easy fix exists for this: You just need to install the VirtualBox guest additions in your Ubuntu 22.04 VirtualBox virtual machine. NOTE: as an alternative to the Additions command it is possible to ‘mount’ the additions disk on the VM directly from the Virtualbox tools menu a window will appear on the screen asking if you want to install the addons, you have to click on yes and reboot. The resolution should now change automatically, but if it doesn’t, just go to the control panel and screen settings: the dropdown will now be enabled.

Install the VirtualBox Guest Additions apt-get install virtualbox-guest-dkms To change the displayed resolution at will, proceed as follows: You will have also noticed that going on the screen settings it is not possible to change this resolution from the dropdown. If you have installed Ubuntu Linux in a virtual machine on VirtualBox you will surely realize that by default its resolution is set to 640×480, very poor for any type of use.

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