Package: xserver-xorg-input-synaptics
Version: 0.14.6-1
Severity: important
The Latitude D420 has a touchpad which is detected by the kernel as
follows:
input: PS/2 Mouse as /class/input/input1
input: AlpsPS/2 ALPS GlidePoint as /class/input/input2
The synaptics driver in X.org uses this just fine. However there are two
major issues:
- The sensitivity is way too low. Even when setting it to maximum in
gsynaptics makes it so slow I need something like ten full movements
across the pad just to get the mouse pointer from the middle to the
upper left corner of the screen. I had to multiply the defaults by
ten (giving MinSpeed=0.9 and MaxSpeed=1.8) and manually inject that
into xorg.conf to get what I'd expect as a reasonable default
behaviour from the mouse pointer.
- Tapping and scrolling does not work, even though synclient seems to
indicate that both are enabled. However, there seems to be something
odd going on with the hardware tapping; FWIW, here's a record of me
tapping a few times:
fugl:~> synclient -m 10
time x y z f w l r u d m multi gl gm gr gdx gdy
0.000 518 465 0 0 0 0 0 0 0 0 00000000 0 0 0 0 0
2.038 472 492 40 1 0 0 0 0 0 0 00000000 0 0 0 0 0
2.195 472 492 0 0 0 0 0 0 0 0 00000000 0 0 0 0 0
2.999 525 518 40 1 0 0 0 0 0 0 00000000 0 0 0 0 0
3.155 525 518 0 0 0 0 0 0 0 0 00000000 0 0 0 0 0
3.887 568 431 126 1 0 0 0 0 0 0 00000000 0 0 0 0 0
3.899 565 422 102 1 0 0 0 0 0 0 00000000 0 0 0 0 0
3.947 565 422 0 0 0 0 0 0 0 0 00000000 0 0 0 0 0
and here's the same thing, using the buttons instead:
fugl:~> synclient -m 10
time x y z f w l r u d m multi gl gm gr gdx gdy
0.000 403 365 0 0 0 0 0 0 0 0 00000000 0 0 0 0 0
0.722 403 365 0 0 0 1 0 0 0 0 00000000 0 0 0 0 0
0.854 403 365 0 0 0 0 0 0 0 0 00000000 0 0 0 0 0
1.010 403 365 0 0 0 1 0 0 0 0 00000000 0 0 0 0 0
1.130 403 365 0 0 0 0 0 0 0 0 00000000 0 0 0 0 0
1.286 403 365 0 0 0 1 0 0 0 0 00000000 0 0 0 0 0
1.406 403 365 0 0 0 0 0 0 0 0 00000000 0 0 0 0 0
Given that I use the defaults (except MinSpeed and MaxSpeed),
shouldn't it be able to figure out for itself that I'm tapping, even
though l=0 all the time? (I'm not sure how to debug the vertical
scrolling either; FWIW, x seems to be around 970-1000 when I pull my
finger across the right edge.)
-- System Information:
Debian Release: testing/unstable
APT prefers unstable
APT policy: (500, 'unstable'), (500, 'testing'), (500, 'stable'), (1,
'experimental')
Architecture: i386 (i686)
Shell: /bin/sh linked to /bin/bash
Kernel: Linux 2.6.17-sesse
Locale: LANG=nb_NO.UTF-8, LC_CTYPE=nb_NO.UTF-8 (charmap=UTF-8)
Versions of packages xserver-xorg-input-synaptics depends on:
ii libc6 2.3.6-18 GNU C Library: Shared libraries
ii libx11-6 2:1.0.0-8 X11 client-side library
ii libxext6 1:1.0.0-4 X11 miscellaneous extension librar
ii libxi6 1:1.0.0-5 X11 Input extension library
ii xserver-xorg-core 1:1.0.2-9 X.Org X server -- core server
xserver-xorg-input-synaptics recommends no packages.
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