http://bugzilla.kernel.org/show_bug.cgi?id=8286





------- Additional Comments From [EMAIL PROTECTED]  2007-05-01 05:29 -------
> > You are mistaken here - if a box has an active multiplexing controller 
(which
> > many HP's do have) then you have 4 independent AUX ports + 1 KBD port.
>
> Not mistaken.  There's a difference between ports that are present in silicon
> vs those which are actually wired up.

Do you have this laptop? Just for fun please plug an external mouse in it and 
you will be surprised (If it does not have external PS/2 ports you need to get 
a hold of a docking station).

> In this case, ACPI reported that only two ports (KBD, one of the
> AUX == touchpad) are wired.  Ergo "too many".

If I go by this logic I have to immediately pull external mouse from my Compaq 
becauase (oh horror!) it is not mentioned in ACPI and surely it is illusion 
that it is working.

Seriously, ACPI does not care about number of AUX ports present. They share the 
same IRQ and the same IO ports and so look the same to ACPI. There is not a 
single box that I have seen that has a special DSDT because its i8042 supports 
active multiplexing mode.

Also, I would not trust keyboard/mouse data it DSDT - in many cases they report 
either wrong ports or forget about IRQ, etc. If you look in i8042 you will see 
that most of PNP code deals with recovering from bad data provided to it.


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