[synaptics] [patch] touchpad output noise that confuse driver

[Marius Gedminas]

On Tue, Nov 25, 2008 at 09:46:38AM +1000, Peter Hutterer wrote:
> On Sun, Nov 23, 2008 at 08:46:14PM +0100, Batchty wrote:
> > Hello, I have a Dell Inspiron 1520 with a Synaptics touchpad. This touchpad for
> >  a unknown reason loves to send event like these after every finger release :
> > 
> >     time     x    y   z f  w  l r u d m     multi  gl gm gr gdx gdy
> >    1.563  3224 1625  57 1  5  0 0 0 0 0  00000000   0  0  0   0   0
> >    1.574  3251 1632  30 1  5  0 0 0 0 0  00000000   0  0  0   0   0
> >    1.584  3292 1673  10 1  5  0 0 0 0 0  00000000   0  0  0   0   0
> >    1.594     1 5855   3 2  5  0 0 0 0 0  00000000   0  0  0   0   0
> >    1.634     1 5855   1 2  5  0 0 0 0 0  00000000   0  0  0   0   0
> >    1.746     1 5855   0 0  0  0 0 0 0 0  00000000   0  0  0   0   0
> >    1.897     1 5855   1 2  5  0 0 0 0 0  00000000   0  0  0   0   0
> > 
> > Most of the time these events are ignored by the driver. but sometimes
> >  it confuse two-finger scrolling and tap detection.
...
> > Oh, and thanks for maintaining this driver. :) i tried to contact previous
> >  upstream but they didn't answer.
> 
> Pushed, thanks a lot!

Looks like this was

  http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=437254

and

  https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-input-synaptics/+bug/133060

but I can't find the issue in the freedesktop bugzilla (was it never
forwarded upstream)?

It's great to have it fixed.

Marius Gedminas
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