Table of Contents
synaptics - Synaptics touchpad input driver
Section "InputDevice"
Identifier "devname"
Driver "synaptics"
Option "Device" "devpath"
Option "Path" "path"
...
EndSection
synaptics is an Xorg input driver for the touchpads from Synaptics
Incorporated. Even though these touchpads (by default, operating in a compatibility
mode emulating a standard mouse) 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:
- Movement with adjustable, non-linear
acceleration and speed.
- Button events through short touching of the touchpad.
- Double-Button events through double short touching of the touchpad.
- Dragging
through short touching and holding down the finger on the touchpad (tap-and-drag
gesture).
- Middle and right button events on the upper and lower corner of
the touchpad.
- Vertical scrolling (button four and five events) through moving
the finger on the right side of the touchpad.
- The up/down button sends button
four/five events.
- Horizontal scrolling (button six and seven events) through
moving the finger on the lower side of the touchpad.
- The multi-buttons send
button four/five events for vertical scrolling and button six/seven events
for horizontal scrolling.
- Adjustable finger detection.
- Multifinger taps:
two finger for middle button and three finger for right button events.
(Needs hardware support. Not all models implement this feature.)
- Pressure
dependent motion speed.
- Run-time configuration using shared memory. This means
you can change parameter settings without restarting the X server.
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.)
Please refer to xorg.conf(5)
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
"SHMConfig" "boolean"
- Switch on/off shared memory for run-time configuration.
Note that this is considered a security risk since any user can access
the configuration. This option is not needed with synaptics 1.0 or later.
See section Device Properties.
- 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 "FingerPress"
"integer"
- When finger pressure goes above this value, the driver counts
it as a press. Currently a press is equivalent to putting the touchpad
in trackstick emulation mode. 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 "FastTaps" "boolean"
- Makes the driver react faster
to a single tap, but also makes double clicks caused by double tapping
slower. Property: "Synaptics Tap FastTap"
- 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 "EdgeMotionMinZ"
"integer"
- Finger pressure at which minimum edge motion speed is set. Property:
"Synaptics Edge Motion Pressure"
- Option "EdgeMotionMaxZ" "integer"
- Finger
pressure at which maximum edge motion speed is set. Property: "Synaptics
Edge Motion Pressure"
- Option "EdgeMotionMinSpeed" "integer"
- Slowest setting
for edge motion speed. Property: "Synaptics Edge Motion Speed"
- Option "EdgeMotionMaxSpeed"
"integer"
- Fastest setting for edge motion speed. Property: "Synaptics Edge
Motion Speed"
- Option "EdgeMotionUseAlways" "boolean"
- If on, edge motion
is also used for normal movements. If off, egde motion is used only when
dragging. Property: "Synaptics Edge Motion Always"
- 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 "TrackstickSpeed" "float"
- Speed scale when in trackstick
emulation mode. 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 "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. 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. 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. 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. 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. 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 (Alps), this sets the Z pressure
threshold to emulate a two finger press. Property: "Synaptics Two-Finger
Pressure"
- Option "EmulateTwoFingerMinW" "integer"
- Some touchpads report
a two-finger touch as wide finger. This sets the finger width threshold to
emulate a two finger press. 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 |
2 | Only tapping and scrolling is switched off |
Property: "Synaptics Off"
- Option "GuestMouseOff" "boolean"
- Switch on/off guest mouse (often a stick).
Property: "Synaptics Guestmouse 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"
- Coasting threshold scrolling speed. 0 disables coasting. 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"
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 |
|
4 |
|
7 |
|
Physical left
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 enable the SHMConfig option and run "synclient -m
1" to see the x/y coordinates corresponding to different positions on the
touchpad.
- Option "AreaLeftEdge" "integer"
- Ignore movements, scrolling and
tapping which take place 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. Property: "Synaptics Area"
- Option "AreaRightEdge" "integer"
- Ignore movements, scrolling and tapping which take place 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. Property: "Synaptics
Area"
- Option "AreaTopEdge" "integer"
- Ignore movements, scrolling and tapping
which take place 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. Property: "Synaptics Area"
- Option "AreaBottomEdge" "integer"
- Ignore movements, scrolling and tapping which take place 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. Property: "Synaptics Area"
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. For this parameter
to have any effect, "FastTaps" has to be disabled.
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 disable vertical or
horizontal scrolling, set VertScrollDelta or HorizScrollDelta to zero.
When hitting an egde, movement can be automatically continued. If EdgeMotionUseAlways
is false, edge motion is only used when dragging. With EdgeMotionUseAlways
set to true, it is also used for normal cursor movements.
Edge motion speed
is calculated by taking into account the amount of pressure applied to
the touchpad. The sensitivity can be adjusted using the EdgeMotion parameters.
If the pressure is below EdgeMotionMinZ, EdgeMotionMinSpeed is used, and
if the pressure is greater than EdgeMotionMaxZ, EdgeMotionMaxSpeed is used.
For a pressure value between EdgeMotionMinZ and EdgeMotionMaxZ, the speed
is increased linearly.
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. By
default, PressureMotionMinZ and PressureMotionMaxZ are equal to EdgeMotionMinZ
and EdgeMotionMaxZ. For a pressure value between PressureMotionMinZ and
PressureMotionMaxZ, the factor is increased linearly.
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 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
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.
Trackstick emulation mode is entered when pressing the
finger hard on the touchpad. The FingerPress parameter controls the minimum
required finger pressure. If the finger hasn't moved more than MaxTapMove
after MaxTapTime has elapsed, trackstick mode is entered. In this mode,
moving the finger slightly in any direction gives a speed vector that moves
the pointer. The TrackstickSpeed parameter controls the ratio between pointer
speed and finger movement distance. Trackstick mode is exited when the
finger pressure drops below FingerLow or when the finger is moved further
than MaxTapMove away from the initial position.
Synaptics
1.0 and higher support input device properties if the driver is running
on X server 1.6 or higher. On these driver versions, Option "SHMConfig" is
not needed to enable run-time configuration. 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 Tap FastTap
- 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, trackstick.
- Synaptics Edge
Motion Pressure
- 32 bit, 2 values, min, max.
- Synaptics Edge Motion Speed
- 32 bit, 2 values, min, max.
- Synaptics Edge Motion Always
- 8 bit (BOOL).
- 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 Guestmouse Off
- 8 bit (BOOL).
- 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.
- 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 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), 5 values
(read-only), has left button, has middle button, has right button, two-finger
detection, three-finger detection.
- Synaptics Pad Resolution
- 32 bit unsigned,
2 values (read-only), vertical, horizontal in units/millimeter.
There
is an example hal policy file in ${sourcecode}/fdi/11-x11-synaptics.fdi which
will enable the driver based on the information if the hardware is available.
Feel free to copy it to /etc/hal/fdi/policy and customize it to your needs.
You can pass custom options to the driver using x11_options properties.
Note that this requires xorg-server-1.5 or higher.
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).
The following
options are no longer part of the driver configuration:
- Option "Repeater"
"string"
- Option "HistorySize" "integer"
- Option "SpecialScrollAreaRight"
"boolean"
-
Peter Osterlund <petero2@telia.com> and many others.
Xorg(1)
, xorg.conf(5)
, Xserver(1)
, X(7)
, synclient(1)
, syndaemon(1)
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