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阻止觸控板將灰塵或指紋視為手指

tag-icon • tag-icon touchpad synaptics
阻止觸控板將灰塵或指紋視為手指

似乎我的觸控板有點過於敏感，每一塊灰塵或幾乎看不見的舊指紋污漬有時都會被視為額外的手指，這意味著它變得無法使用，直到我禁用、擦洗並再次啟用它。最近這種情況每天都會發生多次，非常煩人。

我可以降低觸控板靈敏度以使其不易檢測到“鬼手指”嗎？

我正在使用 Unity Desktop 運行 Ubuntu 16.04，這是我的觸控板資訊：

$ xinput list-props 12
Device 'SYN1B7F:00 06CB:7406 Touchpad':
    Device Enabled (169):   1
    Coordinate Transformation Matrix (171): 1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
    Device Accel Profile (302): 1
    Device Accel Constant Deceleration (303):   2.500000
    Device Accel Adaptive Deceleration (304):   1.000000
    Device Accel Velocity Scaling (305):    12.500000
    Synaptics Edges (326):  49, 1187, 48, 850
    Synaptics Finger (327): 25, 30, 0
    Synaptics Tap Time (328):   180
    Synaptics Tap Move (329):   67
    Synaptics Tap Durations (330):  180, 100, 100
    Synaptics ClickPad (331):   1
    Synaptics Middle Button Timeout (332):  0
    Synaptics Two-Finger Pressure (333):    282
    Synaptics Two-Finger Width (334):   7
    Synaptics Scrolling Distance (335): 30, 30
    Synaptics Edge Scrolling (336): 0, 0, 0
    Synaptics Two-Finger Scrolling (337):   1, 1
    Synaptics Move Speed (338): 1.000000, 1.750000, 0.130976, 0.000000
    Synaptics Off (339):    2
    Synaptics Locked Drags (340):   0
    Synaptics Locked Drags Timeout (341):   5000
    Synaptics Tap Action (342): 2, 3, 0, 0, 1, 3, 2
    Synaptics Click Action (343):   1, 3, 0
    Synaptics Circular Scrolling (344): 0
    Synaptics Circular Scrolling Distance (345):    0.100000
    Synaptics Circular Scrolling Trigger (346): 0
    Synaptics Circular Pad (347):   0
    Synaptics Palm Detection (348): 0
    Synaptics Palm Dimensions (349):    10, 200
    Synaptics Coasting Speed (350): 20.000000, 50.000000
    Synaptics Pressure Motion (351):    30, 160
    Synaptics Pressure Motion Factor (352): 1.000000, 1.000000
    Synaptics Resolution Detect (353):  1
    Synaptics Grab Event Device (354):  0
    Synaptics Gestures (355):   1
    Synaptics Capabilities (356):   1, 0, 0, 1, 1, 0, 0
    Synaptics Pad Resolution (357): 12, 12
    Synaptics Area (358):   0, 0, 0, 0
    Synaptics Soft Button Areas (359):  618, 0, 736, 0, 0, 0, 0, 0
    Synaptics Noise Cancellation (360): 7, 7
    Device Product ID (289):    1739, 29702
    Device Node (290):  "/dev/input/event13"

答案1

您可以透過執行 syclient MaxTapTime=value 來降低 synclient 的 MaxTapTime 參數，從而降低觸控板靈敏度。

如果將該值設為 0，則會停用「點擊」功能

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