I had the same problem. I have a "AlpsPS/2 ALPS DualPoint TouchPad" ( cat
/proc/bus/input/devices )

According to: http://gentoo-wiki.com/HARDWARE_Synaptics_Touchpad , the
"InoutDevice" section should be very different for Synaptic users as opposed
to ALPS users.

I solved it by replacing, in /etc/X11/xorg.conf :

Section "InputDevice"
        Identifier      "Synaptics Touchpad"
        Driver          "synaptics"
        Option          "SendCoreEvents"        "true"
        Option          "Device"                "/dev/psaux"
        Option          "Protocol"              "auto-dev"
        Option          "HorizScrollDelta"      "0"
EndSection

by:

Section "InputDevice"
        Identifier      "Synaptics Touchpad"
        Driver          "synaptics"
        Option          "SendCoreEvents"        "true"
        Option          "Device"                "/dev/psaux"
        Option          "Protocol"              "auto-dev"
        Option          "HorizScrollDelta"      "0"

        # LeftEdge (Integer) - X coordinate for left edge.
        Option "LeftEdge" "130"
        # RightEdge (Integer) - X coordinate for right edge.
        Option "RightEdge" "840"
        # TopEdge (Integer) - Y coordinate for top edge.
        Option "TopEdge" "130"
        # BottomEdge (Integer) - Y coordinate for bottom edge.
        Option "BottomEdge" "640"
        # FingerLow (Integer) - When finger pressure drops below this value,
        # the driver counts it as a release.
        Option "FingerLow" "7"
        # FingerHigh (Integer) - When finger pressure goes above this value,
        # the driver counts it as a touch.
        Option "FingerHigh" "8"
        # MaxTapTime (Integer) - Maximum time (in milliseconds) for detecting
        # a tap.
        Option "MaxTapTime" "180"
        # MaxTapMove (Integer) - Maximum movement of the finger for detecting
        # a tap.
        Option "MaxTapMove" "110"
        # EmulateMidButtonTime (Integer) - Maximum time (in milliseconds) for
        # middle button emulation.
        Option "EmulateMidButtonTime" "75"
        # VertScrollDelta (Integer) - Move distance of the finger for a
        # scroll event.
        Option "VertScrollDelta" "20"
        # HorizScrollDelta (Integer) - Move distance of the finger for a
        #  scroll event.
        Option "HorizScrollDelta" "20"
        # MinSpeed (Float) - Minimum speed factor.
        Option "MinSpeed" "0.60"
        # MaxSpeed (Float) - Maximum speed factor.
        Option "MaxSpeed" "1.10"
        # AccelFactor (Float) - Acceleration factor.
        Option "AccelFactor" "0.030"
        # EdgeMotionMinSpeed (Integer) - Slowest setting for edge motion
        # speed.
        Option "EdgeMotionMinSpeed" "200"
        # EdgeMotionMaxSpeed (Integer) - Fastest setting for edge motion
        # speed.
        Option "EdgeMotionMaxSpeed" "200"
        # UpDownScrolling (Boolean) - If on, the up/down buttons generate
        # button 4/5 events. If off, the up button generates a double click
        # and the down button generates a button 2 event. 
        Option "UpDownScrolling" "1"
        # CircularScrolling (Bool) - If on, circular scrolling is used.
        Option "CircularScrolling" "1"
        # CircScrollDelta (Float) - Move angle (radians) of finger to
        # generate a scroll event.
        Option "CircScrollDelta" "0.1"
        # CircScrollTrigger (Integer) - Trigger region on the touchpad
        # to start circular scrolling.
        #   0   All Edges
        #   1   Top Edge
        #   2   Top Right Corner
        #   3   Right Edge
        #   4   Bottom Right Corner
        #   5   Bottom Edge
        #   6   Bottom Left Corner
        #   7   Left Edge
        #   8   Top Left Corner
        Option "CircScrollTrigger" "2"
        # SHMConfig (Boolean) - Switch on/off shared memory for
        # configuration. (allows parameters to be changed with synclient
        # program).
        Option "SHMConfig" "on"

        Option "Emulate3Buttons" "on"
EndSection

The activation of SHMConfig makes it possible to use the synclient command:
synclient -l


Miry



                
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