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I upgraded to 12.04LTS from 11.10 this morning on my Samsung Series 7 laptop and my touchpad immediately started experiencing weird behaviors:

  • The mouse stops moving completely when I place two fingers on the mouse pad, even if I put one finger in the left mouse button area (which used to work).

  • When I try to right-click (like on a hyperlink or icon) I get the expected left-button behavior.

  • I can no longer touch a scroll bar, press the left button, and drag vertically to scroll up/down.

I have started changing the synaptics touchpad driver values, however I haven't found anything to be effective yet.

Below are my synaptic driver values, does anything look blatantly wrong? What else can I do to troubleshoot this issue?

LeftEdge                = 130
RightEdge               = 3130
TopEdge                 = 123
BottomEdge              = 2159
FingerLow               = 1
FingerHigh              = 1
FingerPress             = 256
MaxTapTime              = 180
MaxTapMove              = 175
MaxDoubleTapTime        = 180
SingleTapTimeout        = 180
ClickTime               = 100
FastTaps                = 0
EmulateMidButtonTime    = 75
EmulateTwoFingerMinZ    = 282
EmulateTwoFingerMinW    = 7
VertScrollDelta         = 79
HorizScrollDelta        = 79
VertEdgeScroll          = 0
HorizEdgeScroll         = 0
CornerCoasting          = 0
VertTwoFingerScroll     = 1
HorizTwoFingerScroll    = 0
MinSpeed                = 1
MaxSpeed                = 1.75
AccelFactor             = 0.0502639
TrackstickSpeed         = 40
EdgeMotionMinZ          = 30
EdgeMotionMaxZ          = 160
EdgeMotionMinSpeed      = 1
EdgeMotionMaxSpeed      = 318
EdgeMotionUseAlways     = 0
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            = 10
PalmMinZ                = 200
CoastingSpeed           = 20
CoastingFriction        = 50
PressureMotionMinZ      = 30
PressureMotionMaxZ      = 160
PressureMotionMinFactor = 1
PressureMotionMaxFactor = 1
ResolutionDetect        = 1
GrabEventDevice         = 1
TapAndDragGesture       = 1
AreaLeftEdge            = 0
AreaRightEdge           = 0
AreaTopEdge             = 0
AreaBottomEdge          = 0
HorizHysteresis         = 19
VertHysteresis          = 19
ClickPad                = 0

Just to be clear, this is only effecting touchpad behavior. An external mouse works as expected.

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closed as too localized by jrg Dec 27 '12 at 17:59

This question is unlikely to help any future visitors; it is only relevant to a small geographic area, a specific moment in time, or an extraordinarily narrow situation that is not generally applicable to the worldwide audience of the internet. For help making this question more broadly applicable, visit the help center.If this question can be reworded to fit the rules in the help center, please edit the question.

1  
Welcome to Ask Ubuntu! We need more hardware information to help you, can you look at this question and then edit your question adding the information? –  Jorge Castro Apr 28 '12 at 18:01
    
I have the same problem, but after installing display card (Nvidia) with the Aditional Drivers, the touchpad (Lenovo 3000 N200 Laptop) is working. –  user58262 Apr 29 '12 at 15:15
    
@PanagiotisTheodoropoulos how did you installed these drivers? –  brandizzi May 3 '12 at 17:10

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