When running Ubuntu as a Vitualbox guest, with a Windows 7 64-bit machine as host, how can I maximize the screen so it fills up the whole monitor?


I think you need to install virtualbox guest additions (virtualbox-ose-guest-utils package). Screen size will resize then automatically.


Under Ubuntu 12.04 I first had to install the virtualbox guest additions. And after that I also had to go to "System Settings" -> "Hardware - Additional Drivers" and activate "Oracle VM VirtualBox Guest Additions for Linux Module", because by default it was still de-activated.

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