EdgeMotionMaxSpeed = 400
EdgeMotionUseAlways = 0
UpDownScrolling = 1
LeftRightScrolling = 1
UpDownRepeat = 1
LeftRightRepeat = 1
ScrollButtonRepeat = 100
TouchpadOff = 0
GuestMouseOff = 0
LockedDrags = 0
RTCornerButton = 2
RBCornerButton = 3
LTCornerButton = 0
LBCornerButton = 0
TapButton1 = 1
TapButton2 = 2
TapButton3 = 3
CircularScrolling = 0
CircScrollDelta = 0.1
CircScrollTrigger = 0
CircularPad = 0
PalmDetect = 1
PalmMinWidth = 10
PalmMinZ = 200
CoastingSpeed = 0
These parameters are fully explained in the manpage for
Table 3-3. Commonly altered Synaptics driver values
| Options | Description | Reason for change |
|---|---|---|
| LeftEdge, TopEdge, RightEdge, BottomEdge | Define the border between edge/corner and middle regions of the touchpad | Used to shrink or expand the regions used for scrolling and corner-taps. |
| PalmDetect, PalmMinWidth, PalmMinZ | Configure the touchpad to ignore broad touches | Prevents accidental touches of the user's palm from registering as touchpad events. PalmDetect enables/disables, PamMinWidth sets the minimum touch diameter that will be considered a palm, and PalmMinZ is the minimum pressure required to register a palm. |
| RTCornerButton, LTCornerButton, LBCornerButton, RBCornerButton | Define the mouse-button clicks that will be registered when the user touches the corner of the keypad | By default, the top-right corner can be tapped to produce a middle mouse click, and the bottom-right corner can be tapped to produce a right mouse click. If you are finding that these clicks are being accidentally registered, set these button values to zero (0); alternately, you can select a specific button you wish to associate with a corner tap (1=left, 2=middle, 3=right, 4=down, 5=up, 6=left, 7=right) |
| TapButton1, TapButton2, TapButton3 | Define the mouse-button clicks that will be registered when the user taps in the middle region of the touchpad with one, two, or three fingers | If you find that you accidentally tap the touchpad with more fingers than you intend to use, you can change the two- and three-finger tap buttons. To disable a tap altogether, set the appropriate value to 0. |
| VertScrollDelta, HorizScrollDelta | Define the amount of finger motion required to register a scroll event. | Set these values to adjust the scroll rates, or set them to 0 to disable scrolling altogether. Note that smaller values increase sensitivity. If you're finding that Firefox keeps moving back and forth in its History when you accidentally sweep your finger across the touchpad, try setting HorizScrollDelta to 0. |
| MaxTapTime | Defines the maximum time (in milliseconds) in which to detect a tap (which is interpreted as a left mouse click). | If tap-to-click drives you bonkers, set this to 0. Otherwise, you can use it to adjust how sensitive your touchpad is to tapping. |
To test an option value, use the
$ synclient
$ synclient
If you need to find position or pressure values for these options, you can use the monitor ( -m ) option of
$ synclient -m 100
time x y z f w l r u d m multi gl gm gr gdx gdy
0.000 3277 2899 0 0 0 0 0 0 0 0 00000000 0 0 0 0 0
1.247 3687 3172 65 1 5 0 0 0 0 0 00000000 0 0 0 0 0
1.351 3402 3070 0 0 0 0 0 0 0 0 00000000 0 0 0 0 0
1.871 3926 3650 62 1 4 0 0 0 0 0 00000000 0 0 0 0 0
1.975 4337 3339 0 0 0 0 0 0 0 0 00000000 0 0 0 0 0
2.495 3932 3133 0 0 0 0 0 0 0 0 00000000 0 0 0 0 0
2.599 3816 3245 1 1 9 0 0 0 0 0 00000000 0 0 0 0 0
2.703 3810 3286 1 1 7 0 0 0 0 0 00000000 0 0 0 0 0
