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Re: kern/52070: Keyboard freeze after using touchpad

On Tue, Mar 14, 2017 at 12:15:00PM +0000, Robert Elz wrote:
> The following reply was made to PR kern/52070; it has been noted by GNATS.
> From: Robert Elz <kre%munnari.OZ.AU@localhost>
> To:
> Cc: 
> Subject: Re: kern/52070: Keyboard freeze after using touchpad
> Date: Tue, 14 Mar 2017 19:10:26 +0700
>      Date:        Tue, 14 Mar 2017 10:25:00 +0000 (UTC)
>      From:
>      Message-ID:  <>
>    |
>    | 
>    | The keyboard works fine after boot but stops working as soon
>    | as the touchpad if used.
>  My guess is that this is related to ...
>    | pckbc1 at acpi0 (PS2K, MSFT0001) (kbd port): io 0x60,0x64 irq 1
>    | pckbc2 at acpi0 (SYNM, SYN1222-3) (aux port): irq 12
>  The second of those is (I am assuming) really the touchpad, but it is
>  being attached as a keyboard controller.

I think this is expected: this is really a PS/2 controller, and you can
connect either a keyboard or a mouse here.
I would then expect a pckbd to attach to pckbc1, and a pms to attach at
pckbc2. For some reason pms thinks there's nothing here.

As this is really a synaptics touchpad and not a plain PS/2 mouse
I guess the command set is a bit different. We have some synaptics
touchpad support, but maybe a newer hardware uses a different protocol.

Manuel Bouyer <>
     NetBSD: 26 ans d'experience feront toujours la difference

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