Virtualbox Seamless mode grayed out

Question

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?

Takkat · Accepted Answer · 2021-03-27T14:58:29.203

1

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.

edited Mar 27 '21 at 14:58

answered Feb 09 '16 at 20:04

Takkat

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so what do I do exactly to confirm what's wrong? – Amit Gold Feb 10 '16 at 16:00
Got it working, the mouse behaves strangely though, I will play around with it, maybe a resolution problem. – Amit Gold Feb 10 '16 at 16:18

Virtualbox Seamless mode grayed out

1 Answers1