I am using Ubuntu 14.04, running a Windows 7 guest VM via QEMU/KVM. It's all working fine, I interact with it via Spice using
remote-viewer. I use Compiz to place the window automatically on the top right desktop (i.e. using workspaces) and keep it running most of the time.
The issue is this: I can use Ctrl + Alt + right to get into the remote-viewer window, but then because it captures all input I can't use Ctrl + Alt + left to get back to the other desktops in Ubuntu. I have to use the mouse to click the icon of the program I want to switch to from the launcher, which is annoying and makes it harder to use the workspaces feature.
Is there a way to define keys that aren't passed to the guest OS? I want to have Ctrl + Alt +left/right/up/down kept within the host so that I can change workspace away from the Windows VM window.