View source for Fullscreen problem of Ubuntu in VM

[[Category:Ruby]]
[[Category:Ubuntu]]
[[Category:Linux]]
[[Category:Tips]]

View -> Switch to Fullscreen Mode (or HOST+F)

Right CTRL is normally the default HOST key.

You need to install the Guest Additions to be able to adjust the guest screen geometry to the host in fullscreen mode.

== Installing Guest additions ==
http://askubuntu.com/questions/22743/how-do-i-install-guest-additions-in-a-virtualbox-vm


== Why does a Ubuntu guest in VirtualBox run very, very slowly? ==
http://askubuntu.com/questions/207813/why-does-a-ubuntu-guest-in-virtualbox-run-very-very-slowly

* Install VirtualBox Oracle VM VirtualBox Extension Pack.
* Create a VirtualBox instance and install Ubuntu 12.10 on it.
* Install some required packages for the guest additions:
 sudo apt-get install linux-headers-$(uname -r) build-essential
* Install the guest additions by clicking Devices, Install Guest Additions and running this command from the CD-ROM's directory:

 sudo ./VBoxLinuxAdditions.run
* Add the vboxvideo driver to the instance by running:

 sudo bash -c 'echo vboxvideo >> /etc/modules'
* Shutdown the VirtualBox instance.
* Open the settings of the Virtualbox instance, navigate to "Display", and tick "Enable 3D acceleration".
* Boot your Ubuntu 12.10 guest, and check that 3D acceleration is working by running:

 /usr/lib/nux/unity_support_test -p
* If windows seem to disppear, install CompizConfig Settings Manager and disable Framebuffer Object (FBO) in the OpenGL section:

* Install the CompizConfig Settings Manager:

 sudo apt-get install compizconfig-settings-manager
* Run the CompizConfig Settings Manager:

 ccsm
* Select the OpenGL section and then untick the Framebuffer Object option. If this fixes the issue it should be immediately visible. No reboot is required.