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Author Topic: Alps/Synaptics Touchpad woes (Solved)  (Read 3550 times)
MDKerr
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Posts: 2


« on: February 26, 2009, 07:26:04 pm »

Ok, I have a Dell Inspiron 1525 with what I thought was a Synatpics touchpad. It is in fact an Alps touchpad.
With a fresh install of VectorLinux I had most of its functionality except for that which I really wanted... scrolling.

With the help of rbistolfi (Thank you very much) in the irc room we got it running. Details below:

Firstly we updated the Xorg drivers.

http://xorg.freedesktop.org/releases/X11R7.4/src/driver/xf86-input-synaptics-0.15.0.tar.bz2


Secondly there were some needed changes to the /etc/X11/xorg.conf file.
Code:
Section "InputDevice"
        Identifier      "Alps Touchpad"
        Driver          "synaptics"
        Option          "SendCoreEvents"        "true"
        Option          "Device"                "/dev/input/event10"
        Option          "Protocol"              "event"
        Option "LeftEdge" "120"
        Option "RightEdge" "830"
        Option "TopEdge" "120"
        Option "BottomEdge" "650"
        Option "FingerLow" "14"
        Option "FingerHigh" "15"
        Option "MaxTapTime" "180"
        Option "MaxTapMove" "110"
Option "ClickTime" "100"
        Option "EmulateMidButtonTime" "75"
        Option "VertScrollDelta" "10"
        Option "HorizScrollDelta" "0"
        Option "MinSpeed" "0.45"
        Option "MaxSpeed" "0.75"
        Option "AccelFactor" "0.020"
        Option "EdgeMotionMinSpeed" "200"
        Option "EdgeMotionMaxSpeed" "200"
        Option "UpDownScrolling" "1"
        Option "CircularScrolling" "0"
        Option "CircScrollDelta" "0.1"
        Option "CircScrollTrigger" "2"
        Option "SHMConfig" "on"
Option "TapButton1" "1"
EndSection

As a further note:
Code:
Option "TapButton1" "1"

This is to enable or disable the tap to click function of the  touchpad.
1 to enable and 0 to disable.

Please keep in mind that the number in the Device Option, as seen below, will change from computer to computer. A simple "cat /proc/bus/input/devices" can give you that number as well as other details of your touchpad.
Code:
Option          "Device"               "/dev/input/event10"

The end result is an Alps touchpad with functioning vertical scrolling.
« Last Edit: February 26, 2009, 07:30:18 pm by MDKerr » Logged
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