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Installation of the Synaptics Touchpad Driver for XOrg/XFree 4.x
================================================================
Author: Stefan Gmeiner <riddlebox@freesurf.ch>
Requirements
------------
1. You need X include files. On RPM based systems, they are usually
included in the XFree86-devel package. On Debian systems, you need
to install the packages x-dev, libx11-dev and libxext-dev.
2. For use with kernel 2.6.x you need to enable synaptics touchpad
support when configuring the kernel (CONFIG_MOUSE_PS2). You also
need support for the evdev interface (CONFIG_INPUT_EVDEV). If you
compile evdev as a module, make sure it is loaded before starting
the X server, as it will not be auto-loaded.
3. If you use XFree86 version 4.0 or 4.1, you will need the XFree86
source code to compile the driver. See the "How do I compile the
driver?" section in the FAQ in the README file for details.
4. Using with kernel 2.4.x for x < 10 needs a kernel patch
(pc_keyb.c.diff.2.4.3).
Installing
----------
1. Type "make" to build the driver "synaptics_drv.o".
2. Copy the driver module "synaptics_drv.o" into the XFree module
path. This path is usually "/usr/X11R6/lib/modules/input/", and
running "make install" as root will do this for you. Note though
that some distributions have a different module path. For example,
in Gentoo 1.4 (with XFree86 4.3.0), the correct path is
"/usr/X11R6/lib/modules/drivers".
3. Add the driver to the XFree configuration file (usually called
/etc/X11/XF86Config-4 or /etc/X11/XF86Config)
Section "Module"
...
Load "synaptics"
...
EndSection
4. Add/Replace in the InputDevice section for the touchpad the
following lines:
Section "InputDevice"
Identifier "Synaptics Mouse"
Driver "synaptics"
Option "Device" "/dev/psaux"
Option "Protocol" "auto-dev"
# enable SHMCOnfig if you want to enable synclient
# NB: enabling SHMConfig is insecure, since any user can invoke it
# Option "SHMConfig" "on"
Option "LeftEdge" "1700"
Option "RightEdge" "5300"
Option "TopEdge" "1700"
Option "BottomEdge" "4200"
Option "FingerLow" "25"
Option "FingerHigh" "30"
Option "MaxTapTime" "180"
Option "MaxTapMove" "220"
Option "VertScrollDelta" "100"
Option "MinSpeed" "0.09"
Option "MaxSpeed" "0.18"
Option "AccelFactor" "0.0015"
# Option "Repeater" "/dev/ps2mouse"
EndSection
Change the Identifier to the same name as in the ServerLayout section.
The Option "Repeater" is at the moment for testing.
5. Add the "CorePointer" option to the InputDevice line at the
ServerLayout section:
Section "ServerLayout"
...
InputDevice "Synaptics Mouse" "CorePointer"
...
Note! You can not have more than one core pointer, so if you want
to use an external mouse too, you have to set all mouse input
devices except one to "AlwaysCore" instead of "CorePointer". For
example:
Section "ServerLayout"
...
InputDevice "Mouse0" "CorePointer"
InputDevice "Synaptics Mouse" "AlwaysCore"
...
Section "InputDevice"
...
Identifier "Mouse0"
Option "Device" "/dev/input/mice"
...
This also applies if you are using a 2.6 linux kernel and the
touchpad contains a "pass through" device. Usually a pass through
device is a touch stick located in the middle of the keyboard, but
it can also be a separate set of buttons located next to the
touchpad. If you want the pass through device to be enabled in X,
the second InputDevice is needed. If there is a line in
/proc/bus/input/devices that begins with "P: Phys=synaptics-pt" it
means that the kernel has found a pass through device.
6. Start/Restart the X Server. If the touchpad doesn't work:
a) Check the XFree log file. This file is usually called
/var/log/XFree86.0.log.
b) Try to start the X server with 'startx -- -logverbose 8' for
more output.
7. If you want to be able to change driver parameters without
restarting the X server, enable the "SHMConfig" option in the XFree
configuration file. You can then use the "synclient" program to
query and modify driver parameters on the fly.
Note! This is not secure if you are in an untrusted multiuser
environment. All local users can change the parameters at any
time.
If you can't get the driver working, check the trouble-shooting.txt
file for common problems. If that doesn't help, mail the log files and
the configuration file to petero2@telia.com. If you use a 2.6.x linux
kernel, also mail the output from dmesg and the output from
"cat /proc/bus/input/devices".
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