I have actually been having this same issue for a while I can confirm that removing xserver-xorg-input-vmmouse does indeed make the system usable again.
-- [lucid kvm-qemu]High cpu usage when moving mouse https://bugs.launchpad.net/bugs/553081 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
