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guydbg

Member

Registered: 2014-01-25

Posts: 8

Middle button stuck thinkpad T440s

Hey, i get a strange behavior from Synaptics. on my new T440s laptop there is no dedicated middle button, it's just a touchpad that can be clicked as a whole and is divided to left middle and right click logically by synaptics.

The problem is, after i use the middle button, for a few seconds, no matter where i press on the touchpad, it gives me a middle button behavior. for example - i open a new tab with the middle button, and when the click the left area of the touchpad to go to the new opened tab, it closes it instead. this happens after i use the middle button, and only for ~10 seconds, then the area gets rebinded and i get a normal behavior.

The 50-synaptics.conf is

# Custom xorg.conf.d snippet that assigns the touchpad driver
# to all touchpads. See xorg.conf.d(5) for more information on
# InputClass.
# Additional options may be added in the form of
#   Option "OptionName" "value"
#
Section "InputClass"
        Identifier "touchpad catchall"
        Driver "synaptics"
        MatchIsTouchpad "on"
# This option is recommend on all Linux systems using evdev, but cannot be
# enabled by default. See the following link for details:
# [url]http://who-t.blogspot.com/2010/11/how-to-ignore-configuration-errors.html[/url]
      MatchDevicePath "/dev/input/event*"

      # This sets the top area of the touchpad to not track
      # movement but can be used for left/middle/right clicks
      Option "SoftButtonAreas" "55% 0 0 2400 30% 55% 0 2400"
      Option "AreaTopEdge" "2400"

      # Helps to reduce mouse cursor "jumpiness"
      Option "HorizHysteresis" "30"
      Option "VertHysteresis" "30"

      # Settings reported to work well on an X1 Carbon
      Option "FingerLow" "40"
      Option "FingerHigh" "45"
      Option "MinSpeed" "1"
      Option "MaxSpeed" "1"
      Option "AccelerationProfile" "2"
      Option "ConstantDeceleration" "4"

      # Disable edge scrolling, I prefer two-finger scroll instead
      Option "VertEdgeScroll" "0"

      # Disable tap and drag gesture
      Option "TapAndDragGesture" "0"

      # Enable three-finger tap for middle mouse click
      Option "TapButton3" "2"
EndSection

Any help?

bio

Member

Registered: 2013-11-22

Posts: 8

Re: Middle button stuck thinkpad T440s

I'm using following settings on t440s.

Section "InputClass"
Identifier "Default clickpad buttons"
MatchDriver "synaptics"
Option "ClickPad"         "true"
Option "EmulateMidButtonTime" "0"
#Option "SoftButtonAreas" "50% 0 82% 0 0 0 0 0"
#Option  "SoftButtonAreas"  "60% 0 82% 0 40% 59% 82% 0"
Option  "SoftButtonAreas"  "60% 0 0% 0 40% 59% 0% 0"
Option "VertScrollDelta" "10"
Option "HorizScrollDelta" "10"
EndSection