Nick Hoffman ha scritto:
> hi guys. i've been having a lot of problems with the touchpad on my
> 15" MBP C2D. it's actually 2 problems:
>
> 1) sometimes when i boot, the touchpad doesn't work at all. when this
> occurs, the symlink /dev/input/touchpad that this udev rule is
> supposed to make doesn't exist:
>
> SUBSYSTEMS=="usb", DRIVERS=="appletouch",
> ATTRS{interface}=="Touchpad", SYMLINK+="input/touchpad"
>
> 2) sometimes when i boot, the touchpad works, but when i try to run
> syndaemon, this error occurs:
>     Can't access shared memory area. SHMConfig disabled?
>
> when either of these problems occur, i reboot one or more times, and
> eventually everything works as desired.
>
> i'm running Debian Etch (4.0), 2.6.21.1+mactel , along with the
> appletouch patch from linuxpowertop.org . below is what i've specified
> for my touchpad in xorg.conf :
>
> Section "InputDevice"
>     Identifier  "Synaptics Touchpad"
>     Driver      "synaptics"
>     Option      "Device"        "/dev/input/touchpad"
>     Option      "Protocol"      "event"
>
> does anyone else experience either or both of these problems
> intermittently? what synaptics config do you have in xorg.conf ?
>
> thanks,
> Nick
>
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People seem to have shared their appletouch configs, so here's mine 
also. I'm quite pleased with it, except that the Palm/Two finger 
detection does not seem to work.

Section "InputDevice"
        Identifier      "Synaptics Touchpad"
        Driver          "synaptics"
        Option          "AlwaysCore"
#       Option          "Device"                
"/dev/input/by-id/usb-Apple_Computer_Apple_Internal_Keyboard_._Trackpad-mouse"
        Option          "Device"                "/dev/input/mice"      
        Option          "Protocol"              "auto-dev"
        Option          "HorizScrollDelta"      "0"
        Option          "SHMConfig"             "true"

        Option          "TouchpaddOff"          "0"

        # How fast the two-finger scrolling scrolls. The lower, the faster.
        Option          "VertScrollDelta"       "25"
        Option          "HorizScrollDelta"      "25"

        # Location of the touchpad edges, somewhat sane values
        # that I found by testing. Xmin=0, Xmax=1216, Ymin=0,Ymax=387
        Option          "LeftEdge"              "100"
        Option          "RightEdge"             "1116"
        Option          "TopEdge"               "50"
        Option          "BottomEdge"            "337"
       
        # Touch and "untouch" thresholds
        Option          "FingerLow"             "25"
        Option          "FingerHigh"            "50"
       
        # We DO NOT want palm triggering middle/right mouse
        # button events, so a tap has to be quite fast
        Option          "MaxTapTime"            "100"
        Option          "MaxTapMove"            "100"
        Option          "MaxDoubleTapTime"      "200"

        # Enable vertical (right) edge scrolling with one finger
        Option          "VertEdgeScroll"        "1"
        # Enable horizontal (bottom) edge scrolling with one finger
        Option          "HorizEdgeScroll"       "0"

        # Disable two finger scrolling, as we have the edge scrolling 
enabled already
        Option          "VertTwoFingerScroll"   "0"
        Option          "HorizTwoFingerScroll"  "0"

        # Left top corner of the touchpad shall be the middle mouse button
        # Bottom buttons tend to get triggered accidentally.
        Option          "LTCornerButton"        "2"
        # Right top corner of the touchpad shall be the right mouse button
        Option          "RTCornerButton"        "3"

        # Disable bottom corners
        Option          "LBCornerButton"        "0"
        Option          "RBCornerButton"        "0"

        # Fast taps
        Option          "FastTaps"              "0"

        # Disable tapping of the touchpad (excluding the corners, of course)
        Option          "TapButton1"            "0"
        Option          "TapButton2"            "0"
        Option          "TapButton3"            "0"

        # Movement speed settings
        Option          "MinSpeed"              "0.2"
        Option          "MaxSpeed"              "0.6"
        Option          "AccelFactor"           "0.35"

        # Palm detection. Does not seem to work on Macbook
        Option          "PalmDetect"            "1"
        Option          "PalmMinWidth"          "10"    #1-15
        Option          "PalmMinZ"              "200"   #1-255

        # Various other variables
        Option          "UpDownScrolling"       "0"
        Option          "LeftRightScrolling"    "0"

EndSection


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