Virtualbox Seamless Mode Grayed Out

Virtualbox Seamless Mode Grayed Out

I am running Kubuntu 14.04 LTS on a Windows 8.1 host, and I am trying to get it to work with seamless mode. Using latest version of VirtualBox.

I have guest additions installed on the guest, and when entering a program and looking at the "view" menu, the "Seamless Mode" line is grayed out. The hotkey combination doesn't work either.

I double checked that the program is focused and things like that, also rebooted a couple of times. Also disabled nested paging.

Is there any way to test if the guest additions are working? Also, what should I do?

1 Answer

Failure to switch to seamless mode indicates a missing or incomplete installation of the guest additions.

In light weight Ubuntu variants we may not have a gcc compiler installed to compile the additions for the guest. This is provided with the package build-essential that we have to install in the guest before we can install the guest additions.

A missing compiler may result in a fail message on running the guest additions install script.

After we had installed the guest additions without an error we need a reboot of the guest to be able to switch the View to Seamless Mode.

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Sophia Al-Mansoor
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Sophia Al-Mansoor

Sophia analyzes international trade, startup ecosystems, retail transformation, and supply chain logistics for modern digital publications.