Hi Everyone,
I’m using Gnome + i3 on Debian Stretch and having a difficult time configuring the touchpad using Kyle Rankin’s DKMS package. Using my best Google-foo I’ve been able to enable tap-to-click and disable edge scrolling but have so far been unable to manage to enable two-finger tap for right click emulation or two-finger scroll.
xinput yields :
me@mypc:~/dev/psmouse-byd-dkms$ xinput
⎡ Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
⎜ ↳ PS/2 BYD TouchPad id=12 [slave pointer (2)]
further, xinput list-props "PS/2 BYD TouchPad" yields :
Device 'PS/2 BYD TouchPad':
Device Enabled (138): 1
Coordinate Transformation Matrix (140): 1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
Device Accel Profile (263): 1
Device Accel Constant Deceleration (264): 2.500000
Device Accel Adaptive Deceleration (265): 1.000000
Device Accel Velocity Scaling (266): 12.500000
Synaptics Edges (267): 450, 10814, 359, 6297
Synaptics Finger (268): 25, 30, 0
Synaptics Tap Time (269): 180
Synaptics Tap Move (270): 575
Synaptics Tap Durations (271): 180, 100, 100
Synaptics ClickPad (272): 0
Synaptics Middle Button Timeout (273): 75
Synaptics Two-Finger Pressure (274): 4
Synaptics Two-Finger Width (275): 8
Synaptics Scrolling Distance (276): 261, 261
Synaptics Edge Scrolling (277): 0, 0, 0
Synaptics Two-Finger Scrolling (278): 1, 1
Synaptics Move Speed (279): 1.000000, 1.750000, 0.015287, 0.000000
Synaptics Off (280): 0
Synaptics Locked Drags (281): 0
Synaptics Locked Drags Timeout (282): 5000
Synaptics Tap Action (283): 0, 0, 0, 0, 1, 2, 3
Synaptics Click Action (284): 1, 1, 1
Synaptics Circular Scrolling (285): 0
Synaptics Circular Scrolling Distance (286): 0.100000
Synaptics Circular Scrolling Trigger (287): 0
Synaptics Circular Pad (288): 0
Synaptics Palm Detection (289): 0
Synaptics Palm Dimensions (290): 10, 200
Synaptics Coasting Speed (291): 20.000000, 50.000000
Synaptics Pressure Motion (292): 30, 160
Synaptics Pressure Motion Factor (293): 1.000000, 1.000000
Synaptics Grab Event Device (294): 0
Synaptics Gestures (295): 1
Synaptics Capabilities (296): 1, 0, 1, 0, 0, 0, 0
Synaptics Pad Resolution (297): 111, 111
Synaptics Area (298): 0, 0, 0, 0
Synaptics Noise Cancellation (299): 65, 65
Device Product ID (258): 2, 20
Device Node (259): "/dev/input/event1"
Synaptics Jumpy Cursor Threshold (495): 250
I found a script that alleges to configure things as I’ve described but thus far I’ve only been able to enable tap-to-click. The script, such as it is, looks like this :
#!/bin/bash
xinput --set-prop --type=int --format=32 12 "Synaptics Two-Finger Pressure" 4
# Below width 1 finger touch, above width simulate 2 finger touch. - value=pad-pixels
xinput --set-prop --type=int --format=32 12 "Synaptics Two-Finger Width" 8
# vertical scrolling, horizontal scrolling - values: 0=disable 1=enable
xinput --set-prop --type=int --format=8 12 "Synaptics Two-Finger Scrolling" 1 1
# vertical, horizontal, corner - values: 0=disable 1=enable
xinput --set-prop --type=int --format=8 12 "Synaptics Edge Scrolling" 0 0 0
# stabilize 2 finger actions - value=pad-pixels
xinput --set-prop --type=int --format=32 12 "Synaptics Jumpy Cursor Threshold" 250
# pad corners rt rb lt lb tap fingers 1 2 3 (can't simulate more then 2 tap fingers AFAIK) - values: 0=disable 1=left 2=middle 3=right e
tc. (in FF 8=back 9=forward)
xinput --set-prop --type=int --format=8 12 "Synaptics Tap Action" 0 0 0 0 1 2 3
It would be lovely if one of the kernel folks or other knowledgeable device folks could help us understand how deep the apparent attempt at synaptics emulation goes. Using debian stretch (4.4 kernel) gnome settings shows no touch options configurable for this device.
Many thanks!
Rebecca
