Ubuntu – Black screen around Virtualbox VM in fullscreen mode (Guest additions installed)

fullscreenvirtualboxwindows 10

I installed Windows 10 on a virtual machine, and everything is working fine. But when I go into fullscreen mode, the size doesn't change, and I get a black screen around the display. Some people suggested that I install the guest additions, so I did. I downloaded the file and inserted it. This did not change anything. I still get a black screen around the VM. How can I fix this?

Best Answer

The guest additions cd needs installed within the client. You can do this from the client toolbar. Devices -> Insert guest additions CD image...

That will mount the guest additions cd image. Click on it to run it. Let it install. It will then reboot the guest operating system. When the guest restarts and you log back in you will be able to go full screen and the resolution will adjust automatically. You can scale the window whatever way you want by dragging the corners of guest window and it will auto adjust to whatever that resolution is.

Related Solutions

Ubuntu – VirtualBox Guest Additions won’t install

Instead of installing the guest additions from virtualbox's virtual CD, you can try installing the pre-built Ubuntu package. Just:

sudo apt-get install virtualbox-guest-dkms

this will compile and install the required module and enable folder sharing, shared clipboards and resizable display with seamless pointer integration.

If you want to continue doing it the hard way:

The message on your screen clearly indicates a log file you can look at to get more details about the problem.
I'm pretty sure this is because you don't have the appropriate development tools and kernel headers installed. You can do this to install them, then retry your process:

sudo apt-get install linux-headers-$(uname -r) build-essential

Ubuntu – Virtualbox doesn’t match with guest additions version

Try to add this plugin from the terminal:

sudo vagrant plugin install vagrant-vbguest

After installed and you do the 'vagrant up' it will detect the version between host and guest. If version doesn't match then it update the guest additions version accordingly. Hope it helps. ;)

Best Answer

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Ubuntu – VirtualBox Guest Additions won’t install

Ubuntu – Virtualbox doesn’t match with guest additions version

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