Just upgraded to VirtualBox 6 running on a Windows 10 host and swapped to the SVGA driver (which according to the docs is the new default). Guest is Lubuntu 18.04.

I cannot for the life of me make the resolution increase. I've purged and re-installed Guest Additions to no effect. (using VBoxLinuxAdditions.run uninstall, and re-running).

I've also tried the steps listed here: https://www.tecmint.com/install-virtualbox-guest-additions-in-ubuntu/

Rebooted several times between steps, but the resolution still restricted when using Monitor settings. xrandr lists just 3 resolutions, 640x480, 800x600 and 1024x768.

Any ideas?

Posted in VBox Forums too: https://forums.virtualbox.org/viewtopic.php?f=3&t=91052

  • Hello, could you please specify a bit what you have tried so far? Where did you change resolution? What is the host of VirtualBox? Is Lubuntu the host machine or the virtual machine? – FloT Jan 1 at 14:21
  • 1
    Sorry, updated now – user909385 Jan 1 at 15:03

In VirtualBox, you have a menu that forces a user-specified screen resolution for the virtual screen. It should help you to specify Lubuntu the correct resolution: VirtualBox virtual screen resolution menu

  • 5
    Greyed out using VboxSVGA. Switch to VMSVGA and all good. Guess the new driver isn't compatible yet – user909385 Jan 2 at 20:27

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