Comment 8 for bug 162790

I googled some more: http://www.google.com/search?q=rmmod+modprobe+psmouse+kvm

It seems to be an issue with many but not all kvm-types and any ps/2 mouse that's beyond the simple 2-button mouse.
So a possible solution would be a better kvm or a usb-mouse which may also need another kvm.

For the current hardware I think we may need to add the following 2 lines:
     #Fix mouse for KVM
     options psmouse proto=imps
to the /etc/modprobe.d/options or /etc/modprobe.conf file.