Comment 14 for bug 173135

This sounds very similar to my problem, but mine is definitely not a hardware problem as it happens when I use my KVM (presents itself as USB keyboard) or a PS2 keyboard in my desktop or (annoyingly) on my new laptop (a Dell D430)

The keyboard either stops working or types the last letter pressed repeatedly and it fails about once or twice a day and I need to reboot (no input at all works)

I have similar packages and Compiz settings on both, so I have disabled Compiz for now to see if it is any more stable but it just happened again now.

As this is happening on 2 of my systems, I can only assume I am installing something that causes it so I have attached the list of installed packages from my desktop.

I uninstalled SCIM on both after searching the forums.