我有 Ubuntu 14.04 Unity，我听说默认情况下应该启用系统手势。两指滚动效果很好，但三指手势不行。这是 xinput：
Device 'SynPS/2 Synaptics TouchPad':
Device Enabled (143): 1
Coordinate Transformation Matrix (145): 1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
Device Accel Profile (268): 1
Device Accel Constant Deceleration (269): 2.500000
Device Accel Adaptive Deceleration (270): 1.000000
Device Accel Velocity Scaling (271): 12.500000
Synaptics Edges (272): 1576, 5366, 1353, 4499
Synaptics Finger (273): 25, 30, 0
Synaptics Tap Time (274): 180
Synaptics Tap Move (275): 251
Synaptics Tap Durations (276): 180, 180, 100
Synaptics ClickPad (277): 0
Synaptics Middle Button Timeout (278): 75
Synaptics Two-Finger Pressure (279): 282
Synaptics Two-Finger Width (280): 7
Synaptics Scrolling Distance (281): -114, -114
Synaptics Edge Scrolling (282): 0, 0, 0
Synaptics Two-Finger Scrolling (283): 1, 1
Synaptics Move Speed (284): 1.000000, 1.750000, 0.034934, 0.000000
Synaptics Off (285): 2
Synaptics Locked Drags (286): 0
Synaptics Locked Drags Timeout (287): 5000
Synaptics Tap Action (288): 2, 3, 0, 0, 1, 3, 0
Synaptics Click Action (289): 1, 1, 0
Synaptics Circular Scrolling (290): 0
Synaptics Circular Scrolling Distance (291): 0.100000
Synaptics Circular Scrolling Trigger (292): 0
Synaptics Circular Pad (293): 0
Synaptics Palm Detection (294): 0
Synaptics Palm Dimensions (295): 10, 200
Synaptics Coasting Speed (296): 20.000000, 50.000000
Synaptics Pressure Motion (297): 30, 160
Synaptics Pressure Motion Factor (298): 1.000000, 1.000000
Synaptics Resolution Detect (299): 1
Synaptics Grab Event Device (300): 0
Synaptics Gestures (301): 1
Synaptics Capabilities (302): 1, 0, 1, 1, 1, 1, 1
Synaptics Pad Resolution (303): 68, 44
Synaptics Area (304): 0, 0, 0, 0
Synaptics Noise Cancellation (305): 8, 8
Device Product ID (262): 2, 7
Device Node (263): "/dev/input/event4"
以下是 synclient：
Parameter settings:
LeftEdge = 1576
RightEdge = 5366
TopEdge = 1353
BottomEdge = 4499
FingerLow = 25
FingerHigh = 30
MaxTapTime = 180
MaxTapMove = 251
MaxDoubleTapTime = 180
SingleTapTimeout = 180
ClickTime = 100
EmulateMidButtonTime = 75
EmulateTwoFingerMinZ = 282
EmulateTwoFingerMinW = 7
VertScrollDelta = -114
HorizScrollDelta = -114
VertEdgeScroll = 0
HorizEdgeScroll = 0
CornerCoasting = 0
VertTwoFingerScroll = 1
HorizTwoFingerScroll = 1
MinSpeed = 1
MaxSpeed = 1.75
AccelFactor = 0.0349345
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 = 0
TapAndDragGesture = 1
AreaLeftEdge = 0
AreaRightEdge = 0
AreaTopEdge = 0
AreaBottomEdge = 0
HorizHysteresis = 8
VertHysteresis = 8
ClickPad = 0
内核版本
3.19.0-49-generic
我是否遗漏了一些简单的东西，或者这里确实出了什么问题？
答案1
应该可以在任何带有“synclient”的设备上运行。只需运行：
“synclient TapButton3=2”
这将中指按钮设置为配置的手势动作，即粘贴选定的测试。
答案2
我正在使用 xubuntu 16.04
从您的 synclient
TapButton1 = 1 ;;;; 左按钮 一根手指 TapButton2 = 3 ;;;; 右按钮 两根手指 TapButton3 = 0 ;;;; 未分配按钮 三根手指
我使用 1 个手指左键 (1) 2 个手指中键 (2) 3 个手指右键 (3)
但现在我的触摸板有时会混淆两根手指和三根手指。
希望能帮助到你。