Sometimes cursor starts jump here and there (very quickly). Disabling and enabling touchpad helps but for short time.
xubuntu 15.04, 3.19.0-30-generic
"xinput list" shows that core pointer is UNKNOWN
user@laptop:~$ xinput list
⎡ Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
⎜ ↳ Logitech USB Optical Mouse id=11 [slave pointer (2)]
⎜ ↳ SYN1B7F:00 06CB:2991 UNKNOWN id=13 [slave pointer (2)]
⎣ Virtual core keyboard id=3 [master keyboard (2)]
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Is there something that I can do?
user@laptop:~$ xinput --list-props 13
Device 'SYN1B7F:00 06CB:2991 UNKNOWN':
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 (291): 48, 1175, 36, 648
Synaptics Finger (292): 25, 30, 0
Synaptics Tap Time (293): 180
Synaptics Tap Move (294): 61
Synaptics Tap Durations (295): 180, 180, 100
Synaptics ClickPad (296): 1
Synaptics Middle Button Timeout (297): 0
Synaptics Two-Finger Pressure (298): 282
Synaptics Two-Finger Width (299): 7
Synaptics Scrolling Distance (300): 28, 28
Synaptics Edge Scrolling (301): 1, 0, 0
Synaptics Two-Finger Scrolling (302): 1, 0
Synaptics Move Speed (303): 1.000000, 1.750000, 0.142755, 0.000000
Synaptics Off (304): 0
Synaptics Locked Drags (305): 0
Synaptics Locked Drags Timeout (306): 5000
Synaptics Tap Action (307): 2, 3, 0, 0, 0, 0, 0
Synaptics Click Action (308): 1, 3, 0
Synaptics Circular Scrolling (309): 0
Synaptics Circular Scrolling Distance (310): 0.100000
Synaptics Circular Scrolling Trigger (311): 0
Synaptics Circular Pad (312): 0
Synaptics Palm Detection (313): 0
Synaptics Palm Dimensions (314): 10, 200
Synaptics Coasting Speed (315): 20.000000, 50.000000
Synaptics Pressure Motion (316): 30, 160
Synaptics Pressure Motion Factor (317): 1.000000, 1.000000
Synaptics Resolution Detect (318): 1
Synaptics Grab Event Device (319): 0
Synaptics Gestures (320): 1
Synaptics Capabilities (321): 1, 0, 0, 1, 1, 0, 0
Synaptics Pad Resolution (322): 12, 12
Synaptics Area (323): 0, 0, 0, 0
Synaptics Soft Button Areas (324): 611, 0, 560, 0, 0, 0, 0, 0
Synaptics Noise Cancellation (325): 7, 7
Device Product ID (260): 1739, 10641
Device Node (261): "/dev/input/event14"
here's synaptics.conf
user@laptop:~$ cat /usr/share/X11/xorg.conf.d/50-synaptics.conf
# Example xorg.conf.d snippet that assigns the touchpad driver
# to all touchpads. See xorg.conf.d(5) for more information on
# InputClass.
# DO NOT EDIT THIS FILE, your distribution will likely overwrite
# it when updating. Copy (and rename) this file into
# /etc/X11/xorg.conf.d first.
# Additional options may be added in the form of
# Option "OptionName" "value"
#
Section "InputClass"
Identifier "touchpad catchall"
Driver "synaptics"
MatchIsTouchpad "on"
# This option is recommend on all Linux systems using evdev, but cannot be
# enabled by default. See the following link for details:
# http://who-t.blogspot.com/2010/11/how-to-ignore-configuration-errors.html
MatchDevicePath "/dev/input/event*"
EndSection
Section "InputClass"
Identifier "touchpad ignore duplicates"
MatchIsTouchpad "on"
MatchOS "Linux"
MatchDevicePath "/dev/input/mouse*"
Option "Ignore" "on"
EndSection
# This option enables the bottom right corner to be a right button on clickpads
# and the right and middle top areas to be right / middle buttons on clickpads
# with a top button area.
# This option is only interpreted by clickpads.
Section "InputClass"
Identifier "Default clickpad buttons"
MatchDriver "synaptics"
Option "SoftButtonAreas" "50% 0 82% 0 0 0 0 0"
Option "SecondarySoftButtonAreas" "58% 0 0 15% 42% 58% 0 15%"
EndSection
# This option disables software buttons on Apple touchpads.
# This option is only interpreted by clickpads.
Section "InputClass"
Identifier "Disable clickpad buttons on Apple touchpads"
MatchProduct "Apple|bcm5974"
MatchDriver "synaptics"
Option "SoftButtonAreas" "0 0 0 0 0 0 0 0"
EndSection
