Re,
voici le résultat :
$ xinput --list-props 12
Device 'AlpsPS/2 ALPS DualPoint TouchPad':
Device Enabled (139): 1
Coordinate Transformation Matrix (141): 1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
Device Accel Profile (265): 1
Device Accel Constant Deceleration (266): 2.500000
Device Accel Adaptive Deceleration (267): 1.000000
Device Accel Velocity Scaling (268): 12.500000
Synaptics Edges (269): 268, 1524, 230, 1306
Synaptics Finger (270): 12, 15, 0
Synaptics Tap Time (271): 180
Synaptics Tap Move (272): 103
Synaptics Tap Durations (273): 180, 180, 100
Synaptics ClickPad (274): 0
Synaptics Middle Button Timeout (275): 75
Synaptics Two-Finger Pressure (276): 141
Synaptics Two-Finger Width (277): 7
Synaptics Scrolling Distance (278): -47, -47
Synaptics Edge Scrolling (279): 0, 0, 0
Synaptics Two-Finger Scrolling (280): 1, 0
Synaptics Move Speed (281): 1.000000, 1.750000, 0.084746, 0.000000
Synaptics Off (282): 2
Synaptics Locked Drags (283): 0
Synaptics Locked Drags Timeout (284): 5000
Synaptics Tap Action (285): 0, 0, 0, 0, 0, 0, 0
Synaptics Click Action (286): 1, 1, 1
Synaptics Circular Scrolling (287): 0
Synaptics Circular Scrolling Distance (288): 0.100000
Synaptics Circular Scrolling Trigger (289): 0
Synaptics Circular Pad (290): 0
Synaptics Palm Detection (291): 0
Synaptics Palm Dimensions (292): 10, 100
Synaptics Coasting Speed (293): 20.000000, 50.000000
Synaptics Pressure Motion (294): 15, 80
Synaptics Pressure Motion Factor (295): 1.000000, 1.000000
Synaptics Grab Event Device (296): 0
Synaptics Gestures (297): 1
Synaptics Capabilities (298): 1, 1, 1, 1, 1, 1, 0
Synaptics Pad Resolution (299): 47, 48
Synaptics Area (300): 0, 0, 0, 0
Synaptics Noise Cancellation (301): 11, 11
Device Product ID (260): 2, 8
Device Node (261): "/dev/input/event2"
Je regarderai ça en détails demain.