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Changing screen resolution on VirtualBox (Linux Debian)

October 13, 2010

Hi after … more than a year!!!

These are the necessary steps that you’ve to follow if you want to change your screen’s resolution using VirtualBox (By the way, this app rocks!) on a Debian virtual machine (Also is applicable to the most of the Linux distros):

  1. Install “build-essential” package. In debian is enough typing apt-get install build-essential
  2. On the VirtualBox menu while the VM is running, press Devices and “Install Guest Additions”. This will mount a cd drive on the system
  3. cd /media/cdrom and sh autorun.sh
  4. Log as root and edit the next file: /etc/X11/xorg.conf
  5. At the end of the file there’s a section called “Screen”. Probably you’ll see “Dept 24”. Open a new line and write the next “Modes “1366×768″ …” And the custom resolution that you need to your machine
  6. Reboot the VM with a shutdown -r now

That’s all, now you’re ready to work with the desired resolution

Cheers

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