When I install Ubuntu via VirtualBox, I can only have resolution of 640x480 or something similar. I found that I needed to install guest additions to get more resolution choices. Doing this makes my Ubuntu look like this in VM window:

enter image description here

I obviously can't navigate in this window and was wondering what my next course of action should be.

  • I remember that after installing Guest Auditions, I had the same problem. I reinstalled the Guest Auditions, again, and it work, but have no idea why. Please try reinstalling, maybe it's the same problem. – Melon Dec 1 '14 at 7:43
  • I have tried to reinstall, but I get a mounting error and nothing happens. How did you reinstall? I cannot do it thru terminal because I cannot see anything in the GUI ...I tried uninstalling and reinstalling the Ubuntu build and reinstalling additions but it does not fix the problem. – disengage Dec 1 '14 at 7:46
  • Does switching to other terminals work Ctrl - Alt - F4 ? – Melon Dec 1 '14 at 7:49
  • Did you select Auto Resize HOST + G and Adjust Window Size HOST + A in the Virtual Box View settings? – Takkat Dec 1 '14 at 8:13

Open Terminal: CTRL+ALT+T

Install these Guest Additions Packages:

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

Make sure you put your sudo user password and packages are installed correctly. After that installation is Done. Restart your VM

If the problem still stays... Try:

Go to System settings -> Software and Updates -> Additional drivers
Use x86 virtualization solutions...
After that reboot your virtual box

Source: Screen Resolution Problem with Ubuntu 14.04 and VirtualBox

After doing this if you still have the same resolution:

Open Terminal CTRL+ALT+T (Hotkey) type in terminal:

xrandr -s 1024x768

It will set your screen resolution to 1024x768

  • I cannot do that because I cannot navigate the ui. Perhaps uninstall and do that before installing additions? – disengage Dec 1 '14 at 14:33
  • Tried the above answer, still does not work. Just the window is not as small now. i.imgur.com/QfA7vjy.jpg – disengage Dec 1 '14 at 15:47
  • Open Terminal CTRL+ALT+T (Hotkey) type in terminal: xrandr -s 1024x768 – LostLife Dec 1 '14 at 15:54
  • Can't access terminal because screen resolution auto resizes to smaller resolution. – disengage Dec 1 '14 at 15:56
  • just type: ctrl+alt+t (it will open terminal) then type the command i have written and press enter and tell me what it does..(you dont have to see anything) – LostLife Dec 1 '14 at 15:57

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