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I faced following usability issue:

when have one of workspaces with focused VirtualBox instance within it,that can't switch between workspaces by Super+E or by Ctrl+Alt+Arrow.

Is it possible to solve it? (VirtualBox is Win XP guest edition and Kubuntu,host is Ubuntu 10.10)

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up vote 15 down vote accepted

In Virtual Box Manager select Preferences -> Input and deselect Auto Capture Keyboard to prevent the virtual machine to capture all keystrokes of the host when activated:

enter image description here

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Press the "host key" (by default: right Control on PC; left Command key on Mac)

The host key gives the control of the keyboard to the host which makes it possible to easy change desktop with Ctrl+Alt+Arrow etc.

More can be read on:

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