linux-kernel - Re: [git pull] Input updates for 2.6.35-rc0

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Date:	Fri, 28 May 2010 12:56:53 +1000
From:	Dave Airlie <airlied@...il.com>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	Florian Ragwitz <rafl@...ian.org>,
	Arjan Opmeer <arjan@...eer.net>,
	Eric Piel <eric.piel@...mplin-utc.net>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	linux-input@...r.kernel.org
Subject: Re: [git pull] Input updates for 2.6.35-rc0

On Fri, May 28, 2010 at 11:53 AM, Linus Torvalds
<torvalds@...ux-foundation.org> wrote:
>
>
> On Thu, 20 May 2010, Dmitry Torokhov wrote:
>>
>> Dmitry Torokhov (17):
>>       Input: elantech - enforce common prefix on messages
>>       Input: elantech - relax signature checks
>
> These two commits (I _think_ - I didn't actually bisect it) seem to result
> in a Dell Inspiron bootup message changing from:
>
>        input: ImPS/2 Logitech Wheel Mouse as /devices/platform/i8042/serio1/input/input5
>
> to
>
>        elantech: assuming hardware version 2, firmware version 4.3.1
>        elantech: Synaptics capabilities query result 0x08, 0x18, 0x0c.
>        input: ETPS/2 Elantech Touchpad as /devices/platform/i8042/serio1/input/input5
>
> and the end result is a total disaster. In the words of my daughter, whose
> laptop this is:
>
>        Subject: Computer=awful
>
>        I am not able to click by tapping, I actually have to press down.. It's
>        really frustrating and I want it fixed.
>
> and having tested it, I have to agree. It's beyond awful. It's absolutely
> disgusting, and the touchpad went from "quite usable" (with tapping,
> double-tapping, scroll-wheel on the right side etc) to "totally unusable".
> The buttons you have to press (since tapping doesn't work) are on the
> touch-pad itself, and it's basically a total pain.
>
> The scroll-wheel emulation still seems to work, but tapping has gone away.
> I'm reading the docs, and they say that you can do magic things with the
> raw registers, but if I'm looking at the register contents they seem to
> say that tapping _is_ enabled. It just doesn't work.
>
> So it would seem that the "non-native" PS/2 emulation of that thing is way
> better than the native driver, and we should _not_ try to treat it as a
> touchpad. We're better off leaving it in ImPS/2 mode.
>

Was this in GNOME?

Does System->Preferences->Mouse have a touchpad tab? do it have tapping off?

Dave.
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