Ubuntu 9.04 setup - fixing the scroll wheel

In Ubuntu with a PS/2 mouse, the scroll wheel stops working when you switch away with a KVM switch. I found some good instructions for fixing the problem on 8.04 here.

There are a few minor changes for 9.04. Here are the steps:

1. Add the following to /etc/modules

   psmouse
   
   

2. Create /etc/modprobe.d/psmouse.conf and give it the following contents:

    # Make my mouse work with KVM
    options psmouse proto=imps
   
   

3. Finally, reload the mouse module:

    # sudo modprobe -r psmouse
    # sudo modprobe -a psmouse