Unfortunately that patch isn't universal, it seems to cause as many
problems on other machines as it fixes on the compaq, and doesn't fix
all the issues anyway, which is why I can't commit it to the tree.
The real problem here is the keyboard driver, and the fix probably
requires a good bit of research to rewrite the portion that is using
the keyboard test command to resynchronize the keyboard. Why the
compaq doesn't support the command properly I just don't know, but that
appears to be the issue.
In anycase, this is a problem in needs of a programmer and researcher
to solve, and my plate is full :-(.
-Matt