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From: Arjan van de Ven <arjan@infradead.org>
To: linux-input@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, akpm@linux-foundation.org
Subject: [patch 0/2] Make the touchpad on the MSI Wind netbook work
Date: Wed, 4 Feb 2009 19:15:40 -0800	[thread overview]
Message-ID: <20090204191540.2d6abd87@infradead.org> (raw)

Hi,

A MSI Wind (100) netbook landed on my desk with the comment "touchpad
doesn't work in Linux but works in XP". 

It turns out that there are a 2 separate issues with this netbook that
needed fixing 

1) The touchpad requires the equivalent of "i8042.reset", which resets
the controller before probing. (This is done via a DMI quirk in patch
2/2)

2) About half the time, the reset will fail the first time. In the
current code, this is fatal and then also disables the keyboard in
addition to the touchpad. Ungood. Patch 1 makes the kernel retry the
reset upto five times before giving up (it seems the 2nd or 3rd time
succeed for me), and also adds an option to not make such a failure
fatal to the keyboard.

I don't think this is a regression, but it is pretty nasty behavior
(the machine is useless without) so it could be a 2.6.29 candidate...


-- 
Arjan van de Ven 	Intel Open Source Technology Centre
For development, discussion and tips for power savings, 
visit http://www.lesswatts.org

             reply	other threads:[~2009-02-05  3:17 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-02-05  3:15 Arjan van de Ven [this message]
2009-02-05  3:16 ` [patch 1/2] input: introduce a tougher i8042.reset Arjan van de Ven
2009-02-05 21:52   ` Andrew Morton
2009-02-06  0:35     ` Arjan van de Ven
2009-02-05  3:17 ` [patch 2/2] input: add a DMI table for the i8042.reset option; make MSI Wind U-100 work Arjan van de Ven
2009-02-06  0:21   ` Andrew Morton
2009-02-10 20:25 ` [patch 0/2] Make the touchpad on the MSI Wind netbook work Pavel Machek
2009-02-10 22:00   ` Rafael J. Wysocki
2009-02-11  1:00     ` Jiri Kosina
2009-02-11  1:13       ` Arjan van de Ven
2009-02-11  1:18         ` Jiri Kosina
2009-02-11  9:50       ` Rafael J. Wysocki
2009-02-10 23:06   ` Arjan van de Ven
2009-02-11  1:45 ` Matthew Garrett
2009-02-11 12:17   ` Jiri Kosina
2009-02-11 13:28     ` Andy Whitcroft

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