salut, tu dois configurer ton /etc/xorg.conf.
Tu dois changer la valeur de Maxtaptime.
ici tu as plein d'options, à toi de voir lesquelles t'intéressent.
Avant tout, vérifie que tu as bien la ligne Driver "synaptics"
Section "InputDevice"
Identifier "Alps Glidepoint"
Driver "synaptics"
#Option "CorePointer"
Option "SendCoreEvents" "true"
Option "Device" "/dev/psaux"
#Option "Device" "/dev/input/mouse1"
Option "Protocol" "auto-dev"
Option "SHMConfig" "on"
Option "LeftEdge" "120"
Option "RightEdge" "830"
Option "TopEdge" "120"
Option "BottomEdge" "600"
Option "FingerLow" "25"
Option "FingerHigh" "30"
Option "MaxTapTime" "180"
Option "MaxTapMove" "110"
Option "MaxDoubleTapTime" "180"
Option "ClickTime" "100"
Option "FastTaps" "1"
Option "EmulateMidButtonTime" "75"
Option "VertScrollDelta" "10"
Option "HorizScrollDelta" "20"
Option "MinSpeed" "0.2"
Option "MaxSpeed" "2.5"
Option "AccelFactor" "0.06"
Option "EdgeMotionMinZ" "30"
Option "EdgeMotionMaxZ" "160"
Option "EdgeMotionMinSpeed" "15"
Option "EdgeMotionMaxSpeed" "15"
Option "EdgeMotionUseAlways" "0"
Option "UpDownScrolling" "1"
Option "LeftRightScrolling" "1"
Option "TouchpadOff" "0"
Option "GuestMouseOff" "1"
Option "LockedDrags" "1"
Option "RTCornerButton" "0"
Option "RBCornerButton" "0"
Option "LTCornerButton" "2"
Option "LBCornerButton" "2"
Option "TapButton1" "1"
Option "TapButton2" "1"
Option "TapButton3" "3"
Option "CircularScrolling" "0"
Option "CircScrollDelta" "0.08"
Option "CircScrollTrigger" "0"
Option "CircularPad" "0"
Option "PalmDetect" "1"
Option "PalmMinWidth" "10"
Option "PalmMinZ" "200"
Option "CoastingSpeed" "0"
EndSection
