All of this is on a 2nd machine of mine with a fresh Ubuntu 13.10 install on a new hard disk.
The KVM is the default install.
The KVM VM was created using the default Ubuntu 13.10 Desktop ISO image.
Note that I started with this 2nd machine because my primary Ubuntu 13.10 machine (which was an upgrade from 13.04) was having the same problems.
All of this is on a 2nd machine of mine with a fresh Ubuntu 13.10 install on a new hard disk.
The KVM is the default install.
The KVM VM was created using the default Ubuntu 13.10 Desktop ISO image.
Note that I started with this 2nd machine because my primary Ubuntu 13.10 machine (which was an upgrade from 13.04) was having the same problems.