Elantech Touchpad, "AreaBottomEdge =" parameter not work completly

[Mattia Donato]

I have a laptop "Asus S65CM" with a large Elantech Touchpad. Please google it and see the touchpad.

First problem: the touchpad is not automatically configured in a correct way. So I wrote a script to correct the parameters of "synclient" as enclosed.
In this way, it work quite well but still a little but annoying bug.
The parameter "AreaBottomEdge = 1800" is used to reducting the Area of sensibility of the Touchpad. This is true about the movements but it is not true about the "fingers counting". For example, if I let one my finger in the area of the left button, which is suppose to be a death-area, outside "AreaBottom", it suppose to not be considered. But actually if I put also a finger to move the curson in "central" zone the touchpad recognize it as TwoFingers, so is blocking the cursor.
If think internally is a problem of "button counting" which is performed before than the AreaBottom constrain.

Parameter settings:
    LeftEdge = 129
    RightEdge = 3120
    TopEdge = 120
    BottomEdge = 2103
    FingerLow = 9
    FingerHigh = 12
    FingerPress = 256
    MaxTapTime = 180
    MaxTapMove = 173
    MaxDoubleTapTime = 180
    SingleTapTimeout = 150
    ClickTime = 100
    FastTaps = 1
    EmulateMidButtonTime = 0
    EmulateTwoFingerMinZ = 282
    EmulateTwoFingerMinW = 7
    VertScrollDelta = 78
    HorizScrollDelta = 78
    VertEdgeScroll = 1
    HorizEdgeScroll = 1
    CornerCoasting = 0
    VertTwoFingerScroll = 1
    HorizTwoFingerScroll = 1
    MinSpeed = 1.5
    MaxSpeed = 3.5
    AccelFactor = 0.1
    TrackstickSpeed = 40
    EdgeMotionMinZ = 30
    EdgeMotionMaxZ = 40
    EdgeMotionMinSpeed = 100
    EdgeMotionMaxSpeed = 400
    EdgeMotionUseAlways = 0
    TouchpadOff = 2
    LockedDrags = 0
    LockedDragTimeout = 5000
    RTCornerButton = 2
    RBCornerButton = 3
    LTCornerButton = 0
    LBCornerButton = 0
    TapButton1 = 1
    TapButton2 = 3
    TapButton3 = 2
    ClickFinger1 = 1
    ClickFinger2 = 3
    ClickFinger3 = 0
    CircularScrolling = 0
    CircScrollDelta = 0.1
    CircScrollTrigger = 0
    CircularPad = 0
    PalmDetect = 1
    PalmMinWidth = 10
    PalmMinZ = 200
    CoastingSpeed = 10
    CoastingFriction = 50
    PressureMotionMinZ = 30
    PressureMotionMaxZ = 160
    PressureMotionMinFactor = 1
    PressureMotionMaxFactor = 1
    ResolutionDetect = 1
    GrabEventDevice = 1
    TapAndDragGesture = 1
    AreaLeftEdge = 0
    AreaRightEdge = 0
    AreaTopEdge = 0
    AreaBottomEdge = 1800
    HorizHysteresis = 19
    VertHysteresis = 19
    ClickPad = 1
    RightButtonAreaLeft = 1624
    RightButtonAreaRight = 0
    RightButtonAreaTop = 1822
    RightButtonAreaBottom = 0
    MiddleButtonAreaLeft = 0
    MiddleButtonAreaRight = 0
    MiddleButtonAreaTop = 0
    MiddleButtonAreaBottom = 0

ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: xserver-xorg-input-synaptics 1.6.2-1ubuntu6 [modified: usr/share/X11/xorg.conf.d/50-synaptics.conf]
ProcVersionSignature: Ubuntu 3.8.0-19.30-generic 3.8.8
Uname: Linux 3.8.0-19-generic x86_64
ApportVersion: 2.9.2-0ubuntu8
Architecture: amd64
Date: Mon May 13 21:44:07 2013
DistUpgraded: Fresh install
DistroCodename: raring
DistroVariant: ubuntu
InstallationDate: Installed on 2013-05-12 (1 days ago)
InstallationMedia: Ubuntu-GNOME 13.04 "Raring Ringtail" - Release amd64 (20130424)
MachineType: ASUSTeK COMPUTER INC. K56CM
MarkForUpload: True
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-19-generic root=UUID=86fe6931-c7ff-4e9d-ba8f-1c005736b8cf ro quiet splash vt.handoff=7
SourcePackage: xserver-xorg-input-synaptics
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 11/19/2012
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: K56CM.209
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: K56CM
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: 1.0
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK COMPUTER INC.
dmi.chassis.version: 1.0
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrK56CM.209:bd11/19/2012:svnASUSTeKCOMPUTERINC.:pnK56CM:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnK56CM:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
dmi.product.name: K56CM
dmi.product.version: 1.0
dmi.sys.vendor: ASUSTeK COMPUTER INC.
version.compiz: compiz N/A
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.43-0ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 9.1.1-0ubuntu3
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 9.1.1-0ubuntu3
version.xserver-xorg-core: xserver-xorg-core 2:1.13.3-0ubuntu6
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu2b2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.1.0-0ubuntu2
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.21.6-0ubuntu4
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.7-0ubuntu1
xserver.bootTime: Mon May 13 20:16:02 2013
xserver.configfile: default
xserver.errors:

xserver.logfile: /var/log/Xorg.0.log
xserver.version: 2:1.13.3-0ubuntu6
xserver.video_driver: intel

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Mattia Donato (mattia-donato)]

Solution found:
source: https://github.com/mattocompleto/elantech-clickpad-fix

Just make autorun this script:
#!/bin/bash

device=`xinput list "ETPS/2 Elantech Touchpad" | grep -o 'id=[0-9]\+' | egrep "[0-9]{1,}" -o`

i=0
while read label min delim max; do
        if [ $i -eq 0 ]; then
                minx=$min
                maxx=$max
        elif [ $i -eq 1 ]; then
                miny=$min
                maxy=$max
                break
        fi

        (( i++ ))
done < <(xinput list "$device" | grep Range)

middleleft=`echo \($maxx - $minx\) / 2 \* 90 / 100 + $minx | bc -l`
middleright=`echo \($maxx - $minx\) / 2 \* 110 / 100 + $minx | bc -l`
left=`echo $middleright + 1 | bc -l`
right=$maxx
height=`echo \($maxy - $miny\) | bc -l`
top=`echo $height \* 0.82 + $miny | bc -l`
bottom=`echo $height \* 2 + $miny | bc -l`

# enable the clickpad
xinput set-prop "$device" "Synaptics ClickPad" 1

# enable right and middle click (drag & drop selection) for the clickpad
xinput set-prop "$device" "Synaptics Soft Button Areas" $left $right $top $bottom $middleleft $middleright $top $bottom

# enable the triple-finger tap as middle click
synclient TapButton1=1 TapButton2=3 TapButton3=2

[wm (winemore)]

While clickpad is correctly recognized in 13.10,
the AreaBottomEdge still does not work as expected - fingers outside the area counts to numFingers

[Pierre Maoui (maouipierre+ubuntuone)]

I also have this bug on 14.10. The AreaBottomEdge doesn't prevent numFingers and it's quite annoying.

[Pierre Maoui (maouipierre+ubuntuone)]

I found a solution here : https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-input-synaptics/+bug/1026046/comments/24