Bug#437254: xserver-xorg-input-synaptics: strange touchpads reading confuse two finger scrolling
Package: xserver-xorg-input-synaptics
Version: 0.14.7~git20070517-2
Severity: normal
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From: Nicolas Caval <batchman@free.fr>
To: Debian Bug Tracking System <submit@bugs.debian.org>
Subject: xserver-xorg-input-synaptics: strange touchpads reading confuse two finger
scrolling
Message-ID: <20070811085515.6688.48969.reportbug@Dalle>
X-Mailer: reportbug 3.38
Date: Sat, 11 Aug 2007 10:55:15 +0200
Package: xserver-xorg-input-synaptics
Version: 0.14.7~git20070517-2
Severity: normal
Hello.
i have a dell inspiron 1520 and the integrated touchpad produces
stranges readings when releasing the finger.
the touchpad is detected as :
Synaptics Touchpad, model: 1, fw: 6.3, id: 0x1a0b1, caps:
0xa04793/0x300000
serio: Synaptics pass-through port at isa0060/serio1/input0
input: SynPS/2 Synaptics TouchPad as /class/input/input4
when releasing the finger, the touchpad always send somes events like
this one below, even if i release it quickly :
time x y z f w l r u d m multi gl gm gr gdx gdy
2.009 3522 2278 50 1 4 0 0 0 0 0 00000000 0 0 0 0 0
2.019 3524 2281 33 1 4 0 0 0 0 0 00000000 0 0 0 0 0
2.040 3525 2263 14 1 5 0 0 0 0 0 00000000 0 0 0 0 0
2.050 3525 2263 5 1 6 0 0 0 0 0 00000000 0 0 0 0 0
2.060 1 5855 2 2 5 0 0 0 0 0 00000000 0 0 0 0 0
2.081 1 5855 1 2 5 0 0 0 0 0 00000000 0 0 0 0 0
2.131 1 5855 0 0 0 0 0 0 0 0 00000000 0 0 0 0 0
2.242 1 5855 1 2 5 0 0 0 0 0 00000000 0 0 0 0 0
2.526 1 5855 0 0 0 0 0 0 0 0 00000000 0 0 0 0 0
2.596 1 5855 1 2 5 0 0 0 0 0 00000000 0 0 0 0 0
2.607 1 5855 0 0 0 0 0 0 0 0 00000000 0 0 0 0 0
2.728 1 5855 1 2 5 0 0 0 0 0 00000000 0 0 0 0 0
2.870 1 5855 0 0 0 0 0 0 0 0 00000000 0 0 0 0 0
2.920 1 5855 1 2 5 0 0 0 0 0 00000000 0 0 0 0 0
2.981 1 5855 2 2 5 0 0 0 0 0 00000000 0 0 0 0 0
when using two button scrolling, the drivers often send lots of
scrolldown event when i release the finger quickly. which is very inconvenient
when trying to scroll up
i monitored the scrolldown event with xev and
the number of scrolldown * VertScrollDelta = 5855 - the end position.
i downloaded the debian sources and hacked something like :
if (x == 1 and y == 5855) { w=z=0; }
and the problem disapeared. but that's dirty.
looking at the source i can't find the problem through
-- System Information:
Debian Release: lenny/sid
APT prefers unstable
APT policy: (500, 'unstable'), (500, 'testing'), (500, 'stable')
Architecture: i386 (i686)
Kernel: Linux 2.6.22.1batchyx1.1 (SMP w/2 CPU cores)
Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8) (ignored: LC_ALL set to fr_FR.UTF-8)
Shell: /bin/sh linked to /bin/bash
Versions of packages xserver-xorg-input-synaptics depends on:
ii libc6 2.6.1-1 GNU C Library: Shared libraries
ii libx11-6 2:1.0.3-7 X11 client-side library
ii libxext6 1:1.0.3-2 X11 miscellaneous extension librar
ii libxi6 2:1.1.2-1 X11 Input extension library
ii xserver-xorg-core 2:1.3.0.0.dfsg-12 X.Org X server -- core server
xserver-xorg-input-synaptics recommends no packages.
-- no debconf information
-- System Information:
Debian Release: lenny/sid
APT prefers unstable
APT policy: (500, 'unstable'), (500, 'testing'), (500, 'stable')
Architecture: i386 (i686)
Kernel: Linux 2.6.22.1batchyx1.1 (SMP w/2 CPU cores)
Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8) (ignored: LC_ALL set to fr_FR.UTF-8)
Shell: /bin/sh linked to /bin/bash
Versions of packages xserver-xorg-input-synaptics depends on:
ii libc6 2.6.1-1 GNU C Library: Shared libraries
ii libx11-6 2:1.0.3-7 X11 client-side library
ii libxext6 1:1.0.3-2 X11 miscellaneous extension librar
ii libxi6 2:1.1.2-1 X11 Input extension library
ii xserver-xorg-core 2:1.3.0.0.dfsg-12 X.Org X server -- core server
xserver-xorg-input-synaptics recommends no packages.
-- no debconf information
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