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I have the following input devices:
fm@thinkpad:~$ xinput list
⎡ Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
⎜ ↳ Logitech USB Receiver id=10 [slave pointer (2)]
⎜ ↳ SynPS/2 Synaptics TouchPad id=12 [slave pointer (2)]
⎜ ↳ TPPS/2 IBM TrackPoint id=13 [slave pointer (2)]
⎣ Virtual core keyboard id=3 [master keyboard (2)]
↳ Virtual core XTEST keyboard id=5 [slave keyboard (3)]
↳ Power Button id=6 [slave keyboard (3)]
↳ Video Bus id=7 [slave keyboard (3)]
↳ Sleep Button id=8 [slave keyboard (3)]
↳ Logitech USB Receiver id=9 [slave keyboard (3)]
↳ AT Translated Set 2 keyboard id=11 [slave keyboard (3)]
↳ ThinkPad Extra Buttons id=14 [slave keyboard (3)]
The touchpad is configured out of the box with the following settings:
fm@thinkpad:~$ xinput list-props 12
Device 'SynPS/2 Synaptics TouchPad':
Device Enabled (132): 1
Coordinate Transformation Matrix (134): 1.000000, 0.000000, 0.000000,
0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
Device Accel Profile (261): 1
Device Accel Constant Deceleration (262): 2.500000
Device Accel Adaptive Deceleration (263): 1.000000
Device Accel Velocity Scaling (264): 12.500000
Synaptics Edges (278): 1760, 5310, 1636, 4442
Synaptics Finger (279): 24, 29, 255
Synaptics Tap Time (280): 180
Synaptics Tap Move (281): 231
Synaptics Tap Durations (282): 180, 180, 100
Synaptics Tap FastTap (283): 0
Synaptics Middle Button Timeout (284): 75
Synaptics Two-Finger Pressure (285): 280
Synaptics Two-Finger Width (286): 6
Synaptics Scrolling Distance (287): 105, 105
Synaptics Edge Scrolling (288): 0, 0, 0
Synaptics Two-Finger Scrolling (289): 1, 1
Synaptics Move Speed (290): 1.000000, 1.750000, 0.038030, 40.000000
Synaptics Edge Motion Pressure (291): 29, 159
Synaptics Edge Motion Speed (292): 1, 420
Synaptics Edge Motion Always (293): 0
Synaptics Off (294): 0
Synaptics Locked Drags (295): 0
Synaptics Locked Drags Timeout (296): 5000
Synaptics Tap Action (297): 2, 3, 0, 0, 1, 3, 2
Synaptics Click Action (298): 1, 1, 1
Synaptics Circular Scrolling (299): 0
Synaptics Circular Scrolling Distance (300): 0.100000
Synaptics Circular Scrolling Trigger (301): 0
Synaptics Circular Pad (302): 0
Synaptics Palm Detection (303): 0
Synaptics Palm Dimensions (304): 9, 199
Synaptics Coasting Speed (305): 20.000000, 50.000000
Synaptics Pressure Motion (306): 29, 159
Synaptics Pressure Motion Factor (307): 1.000000, 1.000000
Synaptics Resolution Detect (308): 1
Synaptics Grab Event Device (309): 1
Synaptics Gestures (310): 1
Synaptics Capabilities (311): 1, 0, 1, 0, 0, 1, 1
Synaptics Pad Resolution (312): 111, 67
Synaptics Area (313): 0, 0, 0, 0
Synaptics Noise Cancellation (314): 26, 26
However to have two finger scrolling activated I have to execute
# xinput --set-prop --type=int --format=32 "SynPS/2 Synaptics TouchPad"
"Synaptics Two-Finger Pressure" 10
Otherwise enabling two finger scroll in system-settings does not have
any effect at all. I do not think there is even a way to set this value
graphically...
Please adapt the default.
** Affects: xserver-xorg-input-synaptics (Ubuntu)
Importance: Undecided
Status: New
--
Synaptics settings have to be adapted after installation
https://bugs.launchpad.net/bugs/849461
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is subscribed to xserver-xorg-input-synaptics in Ubuntu.
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