Instead, Ctrl+Alt+F will only let you change consoles on your host and Ctrl+Alt+Del will magically disappear and effect neither the host nor the guest OS. Unfortunately, key combinations with Ctrl+Alt like the mentioned Ctrl+Alt+F or Ctrl+Alt+Del will not be sent to the guest operating system. Where stands for the number of the console you want to access (like Ctrl+Alt+F1 to get a text console and Ctrl+Alt+F7 to get back to your X session). Simple press OK button instead your change will be discarded.When using a virtual machine in VirtualBox you might want to switch to a different console by hitting Ctrl+Alt+F

GUI applying shortcutĬhanges only in that case as this is the default Qt behavior. Key while this shortcut embedded-editor is opened. Change the shortcut for 'Host Key Combination' inĮmbedded-editor of the shortcut table and (!) press Enter (or Return).

Open VBox 'Preferences.' / Input page / Virtual Machine tab.I even found the configuration file ~/.VirtualBox/VirtualBox.xml on my system, though the new default is ~/.config/VirtualBox/VirtualBox.xml but it was not obvious what I might want to change the value to.

Every time, the preference would reset back to the default. Maybe exit VirtualBox entirely? Still nothing. The Right Ctrl stayed as the modifier! I thought maybe I had to try turning it off and on again. I found the Preferences, Input, Virtual Machine, Host Key Combination setting pretty easily and changed it from the default Right Ctrl to Left Ctrl + Left Shift, considering it's far more rare for me to press two modifiers at the same time, other than Ctrl-Alt perhaps. I spun up a virtual machine in VirtualBox 4.3.10 and quickly became annoyed that common key combinations popped up messages, some of which offered to shutdown or reboot my guest OS. I'm using Ubuntu 14.04.2 LTS with the latest patches available.

Virtualbox host key right ctrl