KVM switch - mouse problems fix

- press CTRL+ALT+F1 to switch away from X, then log in

# sudo rmmod psmouse
# sudo modprobe psmouse proto=imps # or 'proto=bare' (disables mouse wheel)

- permanent fix on boot

# sudo vi /etc/modules

psmouse proto=imps

- alternatively

# sudo vi /etc/modprobe.d/options

options psmouse proto=imps

***

- alternatively pass psmouse.proto=imps to kernel in LILO or GRUB