SYNAPTICS(7) Standards, Environments, and Macros SYNAPTICS(7)
NAME
synaptics - touchpad input driver
SYNOPSIS
Section "InputDevice" Identifier "devname" Driver "synaptics" Option "Device" "devpath" Option "Path" "path" ...
EndSectionDESCRIPTION
synaptics is an Xorg input driver for touchpads. Even though
touchpads can be handled by the normal evdev or mouse drivers, this
driver allows more advanced features of the touchpad to become
available. Some benefits would be:
+o Movement with adjustable, non-linear acceleration and speed.
+o Button events through short touching of the touchpad.
+o Double-Button events through double short touching of the
touchpad.
+o Dragging through short touching and holding down the finger on
the touchpad (tap-and-drag gesture).
+o Middle and right button events on the upper and lower corner of
the touchpad.
+o Vertical scrolling (button four and five events) through moving
the finger on the right side of the touchpad.
+o The up/down button sends button four/five events.
+o Horizontal scrolling (button six and seven events) through moving
the finger on the lower side of the touchpad.
+o The multi-buttons send button four/five events for vertical
scrolling and button six/seven events for horizontal scrolling.
+o Adjustable finger detection.
+o Multifinger taps: two finger for right button and three finger
for middle button events. (Needs hardware support. Not all
models implement this feature.)
+o Pressure-dependent motion speed.
Note that depending on the touchpad firmware, some of these features
might be available even without using the synaptics driver. Note also
that some functions are not available on all touchpad models, because
they need support from the touchpad hardware/firmware. (Multifinger
taps for example.)
The name "synaptics" is historical and the driver still provides the
synaptics protocol parsing code. Under Linux however, the hardware-
specifics are handled by the kernel and this driver will work for any
touchpad that has a working kernel driver. If your device is
recognized as "PS/2 Mouse" or similar, the kernel driver does not
support your device and this driver will only provide limited
functionality.
CONFIGURATION OPTIONS
Please refer to
xorg.conf(4) for general configuration details and
for options that can be used with all input drivers. This section
only covers configuration details specific to this driver.
The following driver
Options are supported:
Option "Device" "string" This option specifies the device file in your "/dev" directory
which will be used to access the physical device. Normally you
should use something like "/dev/input/eventX", where X is some
integer.
Option "Protocol" "string" Specifies which kernel driver will be used by this driver.
This is the list of supported drivers and their default use
scenarios.
auto-dev automatic, default (recommend)
event Linux 2.6 kernel events
psaux raw device access (Linux 2.4)
psm FreeBSD psm driver
Option "LeftEdge" "integer" X coordinate for left edge. Property: "Synaptics Edges"
Option "RightEdge" "integer" X coordinate for right edge. Property: "Synaptics Edges"
Option "TopEdge" "integer" Y coordinate for top edge. Property: "Synaptics Edges"
Option "BottomEdge" "integer" Y coordinate for bottom edge. Property: "Synaptics Edges"
Option "FingerLow" "integer" When finger pressure drops below this value, the driver counts
it as a release. Property: "Synaptics Finger"
Option "FingerHigh" "integer" When finger pressure goes above this value, the driver counts
it as a touch. Property: "Synaptics Finger"
Option "MaxTapTime" "integer" Maximum time (in milliseconds) for detecting a tap. Property:
"Synaptics Tap Durations"
Option "MaxTapMove" "integer" Maximum movement of the finger for detecting a tap. Property:
"Synaptics Tap Move"
Option "MaxDoubleTapTime" "integer" Maximum time (in milliseconds) for detecting a double tap.
Property: "Synaptics Tap Durations"
Option "ClickTime" "integer" The duration of the mouse click generated by tapping.
Property: "Synaptics Tap Durations"
Option "ClickPad" "boolean" Whether the device is a click pad. See
ClickPad support for
more details. Property: "Synaptics ClickPad"
Option "VertEdgeScroll" "boolean" Enable vertical scrolling when dragging along the right edge.
Property: "Synaptics Edge Scrolling"
Option "HorizEdgeScroll" "boolean" Enable horizontal scrolling when dragging along the bottom
edge. Property: "Synaptics Edge Scrolling"
Option "CornerCoasting" "boolean" Enable edge scrolling to continue while the finger stays in an
edge corner. Property: "Synaptics Edge Scrolling"
Option "VertTwoFingerScroll" "boolean" Enable vertical scrolling when dragging with two fingers
anywhere on the touchpad. Property: "Synaptics Two-Finger
Scrolling"
Option "HorizTwoFingerScroll" "boolean" Enable horizontal scrolling when dragging with two fingers
anywhere on the touchpad. Property: "Synaptics Two-Finger
Scrolling"
Option "VertScrollDelta" "integer" Move distance of the finger for a scroll event. Property:
"Synaptics Scrolling Distance"
Option "HorizScrollDelta" "integer" Move distance of the finger for a scroll event. Property:
"Synaptics Scrolling Distance"
Option "MinSpeed" "float" Minimum speed factor. Property: "Synaptics Move Speed"
Option "MaxSpeed" "float" Maximum speed factor. Property: "Synaptics Move Speed"
Option "AccelFactor" "float" Acceleration factor for normal pointer movements. Property:
"Synaptics Move Speed"
Option "PressureMotionMinZ" "integer" Finger pressure at which minimum pressure motion factor is
applied. Property: "Synaptics Pressure Motion"
Option "PressureMotionMaxZ" "integer" Finger pressure at which maximum pressure motion factor is
applied. Property: "Synaptics Pressure Motion"
Option "PressureMotionMinFactor" "integer" Lowest setting for pressure motion factor. Property:
"Synaptics Pressure Motion Factor"
Option "PressureMotionMaxFactor" "integer" Greatest setting for pressure motion factor. Property:
"Synaptics Pressure Motion Factor"
Option "HorizHysteresis" "integer" The minimum horizontal HW distance required to generate motion
events. Can be specified as a percentage. Increase if noise
motion is a problem for you. Zero is disabled. Default: 0.5
percent of the diagonal or (in case of evdev) the appropriate
"fuzz" as advertised by the device.
Option "VertHysteresis" "integer" The minimum vertical HW distance required to generate motion
events. See
HorizHysteresis.
Option "UpDownScrolling" "boolean" If on, the up/down buttons generate button 4/5 events. If
off, the up button generates a double click and the down
button generates a button 2 event. This option is only
available for touchpads with physical scroll buttons.
Property: "Synaptics Button Scrolling"
Option "LeftRightScrolling" "boolean" If on, the left/right buttons generate button 6/7 events. If
off, the left/right buttons both generate button 2 events.
This option is only available for touchpads with physical
scroll buttons. Property: "Synaptics Button Scrolling"
Option "UpDownScrollRepeat" "boolean" If on, and the up/down buttons are used for scrolling
(
UpDownScrolling), these buttons will send auto-repeating 4/5
events, with the delay between repeats determined by
ScrollButtonRepeat. This option is only available for
touchpads with physical scroll buttons. Property: "Synaptics
Button Scrolling Repeat"
Option "LeftRightScrollRepeat" "boolean" If on, and the left/right buttons are used for scrolling
(
LeftRightScrolling), these buttons will send auto-repeating
6/7 events, with the delay between repeats determined by
ScrollButtonRepeat. This option is only available for
touchpads with physical scroll buttons. Property: "Synaptics
Button Scrolling Repeat"
Option "ScrollButtonRepeat" "integer" The number of milliseconds between repeats of button events
4-7 from the up/down/left/right scroll buttons. This option
is only available for touchpads with physical scroll buttons.
Property: "Synaptics Button Scrolling Time"
Option "EmulateMidButtonTime" "integer" Maximum time (in milliseconds) for middle button emulation.
Property: "Synaptics Middle Button Timeout"
Option "EmulateTwoFingerMinZ" "integer" For touchpads not capable of detecting multiple fingers but
are capable of detecting finger pressure and width, this sets
the Z pressure threshold. When both Z pressure and W width
thresholds are crossed, a two finger press will be emulated.
This defaults to a value that disables emulation on touchpads
with real two-finger detection and defaults to a value that
enables emulation on remaining touchpads that support pressure
and width support. Property: "Synaptics Two-Finger Pressure"
Option "EmulateTwoFingerMinW" "integer" For touchpads not capable of detecting multiple fingers but
are capable of detecting finger width and pressure, this sets
the W width threshold. When both W width and Z pressure
thresholds are crossed, a two finger press will be emulated.
This feature works best with (
PalmDetect) off. Property:
"Synaptics Two-Finger Width"
Option "TouchpadOff" "integer" Switch off the touchpad. Valid values are:
0 Touchpad is enabled
1 Touchpad is switched off (physical clicks still work)
2 Only tapping and scrolling is switched off
When the touchpad is switched off, button events caused by a
physical button press are still interpreted. On a ClickPad,
this includes software-emulated middle and right buttons as
defined by the SoftButtonAreas setting.
Property: "Synaptics Off"
Option "LockedDrags" "boolean" If off, a tap-and-drag gesture ends when you release the
finger. If on, the gesture is active until you tap a second
time, or until LockedDragTimeout expires. Property: "Synaptics
Locked Drags"
Option "LockedDragTimeout" "integer" This parameter specifies how long it takes (in milliseconds)
for the LockedDrags mode to be automatically turned off after
the finger is released from the touchpad. Property: "Synaptics
Locked Drags Timeout"
Option "RTCornerButton" "integer" Which mouse button is reported on a right top corner tap. Set
to 0 to disable. Property: "Synaptics Tap Action"
Option "RBCornerButton" "integer" Which mouse button is reported on a right bottom corner tap.
Set to 0 to disable. Property: "Synaptics Tap Action"
Option "LTCornerButton" "integer" Which mouse button is reported on a left top corner tap. Set
to 0 to disable. Property: "Synaptics Tap Action"
Option "LBCornerButton" "integer" Which mouse button is reported on a left bottom corner tap.
Set to 0 to disable. Property: "Synaptics Tap Action"
Option "TapButton1" "integer" Which mouse button is reported on a non-corner one-finger tap.
Set to 0 to disable. Property: "Synaptics Tap Action"
Option "TapButton2" "integer" Which mouse button is reported on a non-corner two-finger tap.
Set to 0 to disable. Property: "Synaptics Tap Action"
Option "TapButton3" "integer" Which mouse button is reported on a non-corner three-finger
tap. Set to 0 to disable. Property: "Synaptics Tap Action"
Option "ClickFinger1" "integer" Which mouse button is reported when left-clicking with one
finger. Set to 0 to disable. Property: "Synaptics Click
Action"
Option "ClickFinger2" "integer" Which mouse button is reported when left-clicking with two
fingers. Set to 0 to disable. Property: "Synaptics Click
Action"
Option "ClickFinger3" "integer" Which mouse button is reported when left-clicking with three
fingers. Set to 0 to disable. Property: "Synaptics Click
Action"
Option "CircularScrolling" "boolean" If on, circular scrolling is used. Property: "Synaptics
Circular Scrolling"
Option "CircScrollDelta" "float" Move angle (radians) of finger to generate a scroll event.
Property: "Synaptics Circular Scrolling Distance"
Option "CircScrollTrigger" "integer" Trigger region on the touchpad to start circular scrolling
0 All Edges
1 Top Edge
2 Top Right Corner
3 Right Edge
4 Bottom Right Corner
5 Bottom Edge
6 Bottom Left Corner
7 Left Edge
8 Top Left Corner
Property: "Synaptics Circular Scrolling Trigger"
Option "CircularPad" "boolean" Instead of being a rectangle, the edge is the ellipse enclosed
by the Left/Right/Top/BottomEdge parameters. For circular
touchpads. Property: "Synaptics Circular Pad"
Option "PalmDetect" "boolean" If palm detection should be enabled. Note that this also
requires hardware/firmware support from the touchpad.
Property: "Synaptics Palm Detection"
Option "PalmMinWidth" "integer" Minimum finger width at which touch is considered a palm.
Property: "Synaptics Palm Dimensions"
Option "PalmMinZ" "integer" Minimum finger pressure at which touch is considered a palm.
Property: "Synaptics Palm Dimensions"
Option "CoastingSpeed" "float" Your finger needs to produce this many scrolls per second in
order to start coasting. The default is 20 which should
prevent you from starting coasting unintentionally. 0
disables coasting. Property: "Synaptics Coasting Speed"
Option "CoastingFriction" "float" Number of scrolls/second^2 to decrease the coasting speed.
Default is 50. Property: "Synaptics Coasting Speed"
Option "SingleTapTimeout" "integer" Timeout after a tap to recognize it as a single tap. Property:
"Synaptics Tap Durations"
Option "GrabEventDevice" "boolean" If GrabEventDevice is true, the driver will grab the event
device for exclusive use when using the linux 2.6 event
protocol. When using other protocols, this option has no
effect. Grabbing the event device means that no other user
space or kernel space program sees the touchpad events. This
is desirable if the X config file includes /dev/input/mice as
an input device, but is undesirable if you want to monitor the
device from user space. When changing this parameter with the
synclient program, the change will not take effect until the
synaptics driver is disabled and reenabled. This can be
achieved by switching to a text console and then switching
back to X.
Option "TapAndDragGesture" "boolean" Switch on/off the tap-and-drag gesture. This gesture is an
alternative way of dragging. It is performed by tapping
(touching and releasing the finger), then touching again and
moving the finger on the touchpad. The gesture is enabled by
default and can be disabled by setting the TapAndDragGesture
option to false. Property: "Synaptics Gestures"
Option "VertResolution" "integer" Resolution of X coordinates in units/millimeter. The value is
used together with HorizResolution to compensate unequal
vertical and horizontal sensitivity. Setting VertResolution
and HorizResolution equal values means no compensation.
Default value is read from the touchpad or set to 1 if value
could not be read. Property: "Synaptics Pad Resolution"
Option "HorizResolution" "integer" Resolution of Y coordinates in units/millimeter. The value is
used together with VertResolution to compensate unequal
vertical and horizontal sensitivity. Setting VertResolution
and HorizResolution equal values means no compensation.
Default value is read from the touchpad or set to 1 if value
could not be read. Property: "Synaptics Pad Resolution"
Option "AreaLeftEdge" "integer" Ignore movements, scrolling and tapping which start left of
this edge. The option is disabled by default and can be
enabled by setting the AreaLeftEdge option to any integer
value other than zero. If supported by the server (version 1.9
and later), the edge may be specified in percent of the total
width of the touchpad. Property: "Synaptics Area"
Option "AreaRightEdge" "integer" Ignore movements, scrolling and tapping which start right of
this edge. The option is disabled by default and can be
enabled by setting the AreaRightEdge option to any integer
value other than zero. If supported by the server (version 1.9
and later), the edge may be specified in percent of the total
width of the touchpad. Property: "Synaptics Area"
Option "AreaTopEdge" "integer" Ignore movements, scrolling and tapping which start above this
edge. The option is disabled by default and can be enabled by
setting the AreaTopEdge option to any integer value other than
zero. If supported by the server (version 1.9 and later), the
edge may be specified in percent of the total height of the
touchpad. Property: "Synaptics Area"
Option "AreaBottomEdge" "integer" Ignore movements, scrolling and tapping which start below this
edge. The option is disabled by default and can be enabled by
setting the AreaBottomEdge option to any integer value other
than zero. If supported by the server (version 1.9 and later),
the edge may be specified in percent of the total height of
the touchpad. Property: "Synaptics Area"
Option "SoftButtonAreas" "RBL RBR RBT RBB MBL MBR MBT MBB" This option is only available on ClickPad devices. Enable
soft button click area support on ClickPad devices. The first
four parameters are the left, right, top, bottom edge of the
right button, respectively, the second four parameters are the
left, right, top, bottom edge of the middle button,
respectively. Any of the values may be given as percentage of
the touchpad width or height, whichever applies. If any edge
is set to 0 (not 0%), the button is assumed to extend to
infinity in the given direction. Setting all values to 0 (not
0%) disables soft button areas. Button areas may not overlap,
however it is permitted for two buttons to share an edge
value. Property: "Synaptics Soft Button Areas"
Option "HasSecondarySoftButtons" "boolean" This option is only available on ClickPad devices. Enable the
secondary software button area support. The exact area must be
set in option "SecondarySoftButtonAreas". See
ClickPad support for more details.
Option "SecondarySoftButtonAreas" "RBL RBR RBT RBB MBL MBR MBT MBB" This option is only available on ClickPad devices and only if
Option "HasSecondarySoftButtons" is enabled. Define the
secondary soft button click areas on ClickPad devices (usually
on top of the device). For the allowed values for this
option, see
Option "SoftButtonAreas". Primary and secondary
soft button areas must not overlap each other. If they do, the
behavior of the driver is undefined. Property: "Synaptics
Secondary Soft Button Areas". This property is only
initialized if
Option "HasSecondarySoftButtons" is enabled and
this option is set in the
xorg.conf(4).
CONFIGURATION DETAILS
Area handling
The LeftEdge, RightEdge, TopEdge and BottomEdge parameters are used
to define the edge and corner areas of the touchpad. The parameters
split the touchpad area in 9 pieces, like this:
| LeftEdge | RightEdge
+--------+----------+---+ Physical top edge
| 1 | 2 | 3 |
+--------+----------+---+ TopEdge
| | | |
| 4 | 5 | 6 |
| | | |
+--------+----------+---+ BottomEdge
| 7 | 8 | 9 |
+--------+----------+---+ Physical bottom edge
|Physical left edge | Physical right edge
Coordinates to the left of LeftEdge are part of the left edge (areas
1, 4 and 7), coordinates to the left of LeftEdge and above TopEdge
(area 1) are part of the upper left corner, etc.
A good way to find appropriate edge parameters is to use
evtest(1) on
the device to see the x/y coordinates corresponding to different
positions on the touchpad.
The perceived physical edges may be adjusted with the AreaLeftEdge,
AreaRightEdge, AreaTopEdge, and AreaBottomEdge options. If these
values are set to something other than the physical edges, input that
starts in the space between the area edge and the respective physical
edge is ignored. Note that this reduces the available space on the
touchpad to start motions in.
Tapping
A tap event happens when the finger is touched and released in a time
interval shorter than MaxTapTime, and the touch and release
coordinates are less than MaxTapMove units apart. A "touch" event
happens when the Z value goes above FingerHigh, and an "untouch"
event happens when the Z value goes below FingerLow.
The MaxDoubleTapTime parameter has the same function as the
MaxTapTime parameter, but for the second, third, etc tap in a tap
sequence. If you can't perform double clicks fast enough (for
example, xmms depends on fast double clicks), try reducing this
parameter. If you can't get word selection to work in xterm (ie
button down, button up, button down, move mouse), try increasing this
parameter.
The ClickTime parameter controls the delay between the button down
and button up X events generated in response to a tap event. A too
long value can cause undesirable autorepeat in scroll bars and a too
small value means that visual feedback from the gui application you
are interacting with is harder to see.
Acceleration
The MinSpeed, MaxSpeed and AccelFactor parameters control the pointer
motion speed. The speed value defines the scaling between touchpad
coordinates and screen coordinates. When moving the finger very
slowly, the MinSpeed value is used, when moving very fast the
MaxSpeed value is used. When moving the finger at moderate speed,
you get a pointer motion speed somewhere between MinSpeed and
MaxSpeed. If you don't want any acceleration, set MinSpeed and
MaxSpeed to the same value.
The MinSpeed, MaxSpeed and AccelFactor parameters don't have any
effect on scrolling speed. Scrolling speed is determined solely from
the VertScrollDelta and HorizScrollDelta parameters. To invert the
direction of vertical or horizontal scrolling, set VertScrollDelta or
HorizScrollDelta to a negative value.
Acceleration is mostly handled outside the driver, thus the driver
will translate MinSpeed into constant deceleration and adapt MaxSpeed
at startup time. This ensures you can user the other acceleration
profiles, albeit without pressure motion. However the numbers at
runtime will likely be different from any options you may have set.
Pressure motion
When pressure motion is activated, the cursor motion speed depends on
the pressure exerted on the touchpad (the more pressure exerted on
the touchpad, the faster the pointer). More precisely the speed is
first calculated according to MinSpeed, MaxSpeed and AccelFactor, and
then is multiplied by a sensitivity factor.
The sensitivity factor can be adjusted using the PressureMotion
parameters. If the pressure is below PressureMotionMinZ,
PressureMotionMinFactor is used, and if the pressure is greater than
PressureMotionMaxZ, PressureMotionMaxFactor is used. For a pressure
value between PressureMotionMinZ and PressureMotionMaxZ, the factor
is increased linearly.
Middle button emulation
Since most synaptics touchpad models don't have a button that
corresponds to the middle button on a mouse, the driver can emulate
middle mouse button events. If you press both the left and right
mouse buttons at almost the same time (no more than
EmulateMidButtonTime milliseconds apart) the driver generates a
middle mouse button event.
Circular scrolling
Circular scrolling acts like a scrolling wheel on the touchpad.
Scrolling is engaged when a drag starts in the given
CircScrollTrigger region, which can be all edges, a particular side,
or a particular corner. Once scrolling is engaged, moving your
finger in clockwise circles around the center of the touchpad will
generate scroll down events and counter clockwise motion will
generate scroll up events. Lifting your finger will disengage
circular scrolling. Use tight circles near the center of the pad for
fast scrolling and large circles for better control. When used
together with vertical scrolling, hitting the upper or lower right
corner will seamlessly switch over from vertical to circular
scrolling.
Coasting
Coasting is enabled by setting the CoastingSpeed parameter to a non-
zero value. Coasting comes in two flavors: conventional (finger off)
coasting, and corner (finger on) coasting.
Conventional coasting is enabled when coasting is enabled, and
CornerCoasting is set to false. When conventional coasting is
enabled, horizontal/vertical scrolling can continue after the finger
is released from the lower/right edge of the touchpad. The driver
computes the scrolling speed corresponding to the finger speed
immediately before the finger leaves the touchpad. If this scrolling
speed is larger than the CoastingSpeed parameter (measured in scroll
events per second), the scrolling will continue with the same speed
in the same direction until the finger touches the touchpad again.
Corner coasting is enabled when coasting is enabled, and
CornerCoasting is set to true. When corner coasting is enabled, edge
scrolling can continue as long as the finger stays in a corner.
Coasting begins when the finger enters the corner, and continues
until the finger leaves the corner. CornerCoasting takes precedence
over the seamless switch from edge scrolling to circular scrolling.
That is, if CornerCoasting is active, scrolling will stop, and
circular scrolling will not start, when the finger leaves the corner.
Noise cancellation
The synaptics has a built-in noise cancellation based on hysteresis.
This means that incoming coordinates actually shift a box of
predefined dimensions such that it covers the incoming coordinate,
and only the boxes own center is used as input. Obviously, the
smaller the box the better, but the likelyhood of noise motion coming
through also increases.
ClickPad support
A click pad device has button(s) integrated into the touchpad
surface. The user must press downward on the touchpad in order to
generated a button press. ClickPad support is enabled if the option
ClickPad is set or the property is set at runtime. On some platforms,
this option will be set automatically if the kernel detects a
matching device. On Linux, the device must have the
INPUT_PROP_BUTTONPAD property set.
ClickPads do not support middle mouse button emulation. If enabling
ClickPad support at runime, the user must also set the middle mouse
button timeout to 0. If auto-detected, middle mouse button emulation
is disabled by the driver.
ClickPads provide software emulated buttons through
Option "SoftButtonAreas". These buttons enable areas on the touchpad to
perform as right or middle mouse button. When the user performs a
click within a defined soft button area, a right or middle click is
performed.
Some laptops, most notably the Lenovo T440, T540 and x240 series,
provide a pointing stick without physical buttons. On those laptops,
the top of the touchpad acts as software-emulated button area. This
area can be enabled with
Option "HasSecondarySoftButtons" and
configured with
Option "SecondarySoftButtonAreas". On some
platforms, this option will be set automatically if the kernel
detects a matching device. On Linux, the device must have the
INPUT_PROP_TOPBUTTONPAD property set.
DEVICE PROPERTIES
Synaptics 1.0 and higher support input device properties if the
driver is running on X server 1.6 or higher. The synclient tool
shipped with synaptics version 1.1 uses input device properties by
default. Properties supported:
Synaptics Edges 32 bit, 4 values, left, right, top, bottom.
Synaptics Finger 32 bit, 3 values, low, high, press.
Synaptics Tap Time 32 bit.
Synaptics Tap Move 32 bit.
Synaptics Tap Durations 32 bit, 3 values, single touch timeout, max tapping time for
double taps, duration of a single click.
Synaptics ClickPad 8 bit (Bool).
Synaptics Middle Button Timeout 32 bit.
Synaptics Two-Finger Pressure 32 bit.
Synaptics Two-Finger Width 32 bit.
Synaptics Scrolling Distance 32 bit, 2 values, vert, horiz.
Synaptics Edge Scrolling 8 bit (BOOL), 3 values, vertical, horizontal, corner.
Synaptics Two-Finger Scrolling 8 bit (BOOL), 2 values, vertical, horizontal.
Synaptics Move Speed FLOAT, 4 values, min, max, accel, <deprecated>
Synaptics Button Scrolling 8 bit (BOOL), 2 values, updown, leftright.
Synaptics Button Scrolling Repeat 8 bit (BOOL), 2 values, updown, leftright.
Synaptics Button Scrolling Time 32 bit.
Synaptics Off 8 bit, valid values (0, 1, 2).
Synaptics Locked Drags 8 bit (BOOL).
Synaptics Locked Drags Timeout 32 bit.
Synaptics Tap Action 8 bit, up to MAX_TAP values (see synaptics.h), 0 disables an
element. order: RT, RB, LT, LB, F1, F2, F3.
Synaptics Click Action 8 bit, up to MAX_CLICK values (see synaptics.h), 0 disables an
element. order: Finger 1, 2, 3.
Synaptics Circular Scrolling 8 bit (BOOL).
Synaptics Circular Scrolling Distance FLOAT.
Synaptics Circular Scrolling Trigger 8 bit, valid values 0..8 (inclusive) order: any edge, top, top
+ right, right, right + bottom, bottom, bottom + left, left,
left + top.
Synaptics Circular Pad 8 bit (BOOL).
Synaptics Palm Detection 8 bit (BOOL).
Synaptics Palm Dimensions 32 bit, 2 values, width, z.
Synaptics Coasting Speed FLOAT, 2 values, speed, friction.
Synaptics Pressure Motion 32 bit, 2 values, min, max.
Synaptics Pressure Motion Factor FLOAT, 2 values, min, max.
Synaptics Grab Event Device 8 bit (BOOL).
Synaptics Gestures 8 bit (BOOL), 1 value, tap-and-drag.
Synaptics Area The AreaLeftEdge, AreaRightEdge, AreaTopEdge and
AreaBottomEdge parameters are used to define the edges of the
active area of the touchpad. All movements, scrolling and
tapping which take place outside of this area will be ignored.
This property is disabled by default.
32 bit, 4 values, left, right, top, bottom. 0 disables an
element.
Synaptics Soft Button Areas This property is only available on ClickPad devices. The
Right and middle soft button areas are used to support right
and middle click actions on a ClickPad device. Providing 0 for
all values of a given button disables the button area.
32 bit, 8 values, RBL, RBR, RBT, RBB, MBL, MBR, MBT, MBB.
Synaptics Capabilities This read-only property expresses the physical capability of
the touchpad, most notably whether the touchpad hardware
supports multi-finger tapping and scrolling.
8 bit (BOOL), 7 values (read-only), has left button, has
middle button, has right button, two-finger detection, three-
finger detection, pressure detection, and finger/palm width
detection.
Synaptics Pad Resolution 32 bit unsigned, 2 values (read-only), vertical, horizontal in
units/millimeter.
NOTES
Configuration through
InputClass sections is recommended in X servers
1.8 and later. See
xorg.conf.d(5) for more details. An example
xorg.conf.d snippet is provided in
${sourcecode}/conf/70-synaptics.conf Configuration through hal fdi files is recommended in X servers 1.5,
1.6 and 1.7. An example hal policy file is provided in
${sourcecode}/conf/11-x11-synaptics.fdi If either of
Protocol "auto-dev" (default) or
Protocol "event" is
used, the driver initializes defaults based on the capabilities
reported by the kernel driver. Acceleration, edges and resolution are
based on the dimensions reported by the kernel. If the kernel reports
multi-finger detection, two-finger vertical scrolling is enabled,
horizontal two-finger scrolling is disabled and edge scrolling is
disabled. If no multi-finger capabilities are reported, edge
scrolling is enabled for both horizontal and vertical scrolling.
Tapping is disabled by default for touchpads with one or more
physical buttons. To enable it you need to map tap actions to
buttons. See the "TapButton1", "TapButton2" and "TapButton3" options.
Button mapping for physical buttons is handled in the server. If the
device is switched to left-handed (an in-server mapping of physical
buttons 1, 2, 3 to the logical buttons 3, 2, 1, respectively), both
physical and TapButtons are affected. To counteract this, the
TapButtons need to be set up in reverse order (TapButton1=3,
TapButton2=1).
REMOVED OPTIONS
The following options are no longer part of the driver configuration:
Option "Repeater" "string" Option "HistorySize" "integer" Option "SpecialScrollAreaRight" "boolean" Option "GuestMouseOff" "boolean" Option "SHMConfig" "boolean" Option "FingerPress" "integer" Option "TrackstickSpeed" "float" Option "EdgeMotionMinZ" "integer" Option "EdgeMotionMaxZ" "integer" Option "EdgeMotionMinSpeed" "integer" Option "EdgeMotionMaxSpeed" "integer" Option "EdgeMotionUseAlways" "boolean"AUTHORS
Peter Osterlund <petero2@telia.com> and many others.
SEE ALSO
Xorg(1),
xorg.conf(4),
Xserver(1), X(5),
synclient(1),
syndaemon(1)X Version 11 xf86-input-synaptics 1.9.1 SYNAPTICS(7)
