I have installed virtual box on My ubuntu 14.04 machine and I have then installed ubuntu 14.04 in the VM as a guest OS as well.
I understand I need to correctly install virtualbox guest additions to enable the option to change screen resolution.
This may or may not have been successful, so now my question is:

assuming the guest additions installed successfully - how do I actually change the screen resolution?
i.e. do I

  • go into the system settings -> display and set from in there? or
  • do I go to the virtualbox application in the host OS, select preferences -> and set to hint or automatic?
  • does it just automatically set a sane screen resolution if you successfully install guest additions?

1 Answer 1


Run your virtual machine and open Terminal to execute:

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

Restart your virtual machine: you will see the icons appearing in their natural dimensions (correct resolution)

  • thanks. I will try it now. do I run this on the host or the guest OS? Jun 28, 2015 at 9:33
  • @user4668401 You must run that on the guest OS
    – user284234
    Jun 28, 2015 at 9:34
  • tried it and it errors out: virtualbox-guest-x11 has unmet dependencies Jun 28, 2015 at 10:22

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.