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I have an old Dell XPS 15 laptop running Ubuntu 16.04.3. I've always been experiencing annoying touchpad gesture behavior, for example when I try to scroll (2 fingers) and I touch the bottom of the touchpad, my unity menu always opens and then it activates whatever icon is under the cursor.

I'd like to disable it but I have no idea how to. I've searched through some other people's questions but could not find an answer for it.

Here is my (default) synclient configuration:

$ synclient 
Parameter settings:
    LeftEdge                = 64
    RightEdge               = 1536
    TopEdge                 = 48
    BottomEdge              = 852
    FingerLow               = 25
    FingerHigh              = 30
    MaxTapTime              = 180
    MaxTapMove              = 80
    MaxDoubleTapTime        = 100
    SingleTapTimeout        = 180
    ClickTime               = 100
    EmulateMidButtonTime    = 75
    EmulateTwoFingerMinZ    = 282
    EmulateTwoFingerMinW    = 112
    VertScrollDelta         = 36
    HorizScrollDelta        = 36
    VertEdgeScroll          = 0
    HorizEdgeScroll         = 0
    CornerCoasting          = 0
    VertTwoFingerScroll     = 1
    HorizTwoFingerScroll    = 1
    MinSpeed                = 1
    MaxSpeed                = 1.75
    AccelFactor             = 0.108992
    TouchpadOff             = 2
    LockedDrags             = 0
    LockedDragTimeout       = 5000
    RTCornerButton          = 2
    RBCornerButton          = 3
    LTCornerButton          = 0
    LBCornerButton          = 0
    TapButton1              = 1
    TapButton2              = 3
    TapButton3              = 0
    ClickFinger1            = 1
    ClickFinger2            = 1
    ClickFinger3            = 0
    CircularScrolling       = 0
    CircScrollDelta         = 0.1
    CircScrollTrigger       = 0
    CircularPad             = 0
    PalmDetect              = 0
    PalmMinWidth            = 160
    PalmMinZ                = 200
    CoastingSpeed           = 20
    CoastingFriction        = 50
    PressureMotionMinZ      = 30
    PressureMotionMaxZ      = 160
    PressureMotionMinFactor = 1
    PressureMotionMaxFactor = 1
    ResolutionDetect        = 1
    GrabEventDevice         = 0
    TapAndDragGesture       = 1
    AreaLeftEdge            = 0
    AreaRightEdge           = 0
    AreaTopEdge             = 0
    AreaBottomEdge          = 0
    HorizHysteresis         = 9
    VertHysteresis          = 9
    ClickPad                = 0

Not sure if it matters, but I only have this issue when I scroll up and start my fingers at the bottom edge of the touchpad.

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  • can you tell us please what you tried already ? Looking through askubuntu and other sites the seems to be a lot of Dell XPS touchpad related issues like these – Robert Riedl Jan 23 '18 at 9:24
  • Do you have similar problems on different desktop environments? – Nonny Moose Jan 24 '18 at 1:15
  • I looked on askubuntu and saw a couple similar problems indicating it should be solved with synclient clickfinger options. I tried different values for all ClickFinger1 to 3 without any effect. The solution was for a ubuntu 14 but I don't see how that's going to make a big difference. – Jakke Jan 24 '18 at 13:44
  • @RobertRiedl Thanks for that link. The 'apt install xserver-xorg-input-libinput' did the trick, but now I lost the tap-to-click function. – Jakke Jan 24 '18 at 13:54
  • oh god this sounds like a nightmare ! Can I suggest doing a clean install of 17.10, the most current release ? – Robert Riedl Jan 24 '18 at 13:56

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