linux-kernel - Re: psmouse synaptics: "hardware appears to be different" bail out

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Message-ID: <20120716220718.GA28635@core.coreip.homeip.net>
Date:	Mon, 16 Jul 2012 15:07:19 -0700
From:	Dmitry Torokhov <dmitry.torokhov@...il.com>
To:	Andreas Mohr <andi@...as.de>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: psmouse synaptics: "hardware appears to be different" bail out

On Mon, Jul 16, 2012 at 11:44:53PM +0200, Andreas Mohr wrote:
> Hi,
> 
> just found the following in dmesg after resume
> (currently running -rc7):
> 
> [ 9312.672073] psmouse serio2: synaptics: hardware appears to be
> different: id(149271-149271), model(114865-114865), caps(d04771-d04773),
> ext(a40000-a40000).
> 
> Acer Aspire One A110L here.
> 
> Any clever thoughts about this?
> Just thought that it might be useful to report it,
> especially since the function (in drivers/input/mouse/synaptics.c)
> bails out right after this check/message.

Hmm, we do not really expect the touchpad change it's caracteristics at
all during its lifetime, so no clever ideas here... It looks like a
single bit error, but KBC should have signalled parity error in this
case...

-- 
Dmitry
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