Comment 27 for bug 1305586

The proposed fix doesn't seem to work for me:
- Enable trusty-proposed, with /etc/apt/preferences pin
- Update compiz with aptitude -t trusty-proposed
- dpkg --status compiz gives: "Status: install ok installed" and "Version: 1:0.9.11.1+14.04.20140701-0ubuntu1"
- Restart, relogin
- Start VirtualBox (ver 4.3.10-dfsg-1) my Windows 8.1 update 1 VM, fullscreen
- Wait for Unity lockscreen (timeout set to 1 minute for testing)
- Keyboard input does not seem to respond, mouse works fine.
- Switch accounts..., log in as myself again succeeds, returns to existing session
- Keyboard input has been going to the windows VM

This is a dual monitor system which might be important.
Apt is otherwise up to date with released packages.

The mentioned workarounds to get focus back to the login screen don't seem to work for me either (unity --replace, host key etc...). Only switch user, which seems to do a video reset.

Any logs etc... I could attach that would be useful? This isn't a huge blocker, but it's quite annoying.