Comment 180 for bug 124406

> This problem does exist on Ubuntu. Like I said before, the only workaround
> I know of is to take the mouse out and plug it back in.
> This fixes the
> keyboard for some reason. I only have this problem on an AMD processor.
>

We have to make a diversification here. This kernel bug (http://bugzilla.kernel.org/show_bug.cgi?id=9147) is relative to ACPI and/or i8042 chipset and is being addressed by an Intel developer (although the i8042 chipset is not necessarily used only on computers using Intel CPUs). You can see that you have bug 9147 because when a key gets stuck you find on dmesg:

...
atkbd.c: Unknown key released (translated set 2, code 0xe0 on isa0060/serio0).
...

This happens, as far as I know, *exclusively* with i8042 chipset, ACPI active, battery/ac/thermal module (or code if you have compiled it statically in the kernel) active and a PS/2 keyboard (even embedded, like those of many notebooks) of course.

Since you have an USB keyboard and since you are not getting the atkbd.c messages, I think your bug is a different one (you're lucky, kernel bug 9147 does not seem to be fixed very soon...)

@everybody: please post a comment if you have an i8042 chipset and can add informations (or confirm them)