linux-kernel - Re: [PATCH] Add a quirk for the Dell XPS 13 (2015) when in PS/2 mode.

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Message-ID: <871tjrv23b.fsf@gmail.com>
Date:	Fri, 10 Apr 2015 22:19:20 -0400
From:	Ben Gamari <bgamari.foss@...il.com>
To:	Mario Limonciello <mario_limonciello@...l.com>,
	Pali Rohár <pali.rohar@...il.com>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	"linux-input\@vger.kernel.org" <linux-input@...r.kernel.org>
Subject: Re: [PATCH] Add a quirk for the Dell XPS 13 (2015) when in PS/2 mode.

Mario Limonciello <mario_limonciello@...l.com> writes:

> On 04/10/2015 06:14 PM, Pali Rohár wrote:
snip

>> Can you comment if this is also same problem with invalid packets
>> on E6440/E7440 machines?
>>
> Hi Pali,
>
snip
>
> The invalid packets on the Exx40 machines I believe is caused by some
> behavior that happens if the touchpad/trackstick receives data shortly
> after the internal keyboard was busy.  An interrupt is fired on the EC
> that will cause it discard data.  I think this is why it ends up on
> the other end looking like it does.
>
Is this to say that the issue will be fixed with a BIOS update?

Cheers,

- Ben


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