4
Distributor ID: Ubuntu
Description:    Ubuntu 16.04.1 LTS
Release:        16.04
Codename:       xenial

Touchpad features (two-finger scrolling, etc) suddenly stop working, maybe after last update. Touchpad tab is missing in System -> Preferences -> Mouse. My touchpad simply act like a mouse.

synclient output:

Couldn't find synaptics properties. No synaptics driver loaded?

xinput list output:

⎡ Virtual core pointer                      id=2    [master pointer  (3)]
⎜   ↳ Virtual core XTEST pointer            id=4    [slave  pointer  (2)]
⎜   ↳ PS/2 Synaptics TouchPad               id=12   [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)]
...

xinput list-props 12 output:

Device 'PS/2 Synaptics TouchPad':
    Device Enabled (142):   1
    Coordinate Transformation Matrix (144): 1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
    Device Accel Profile (273): 0
    Device Accel Constant Deceleration (274):   1.000000
    Device Accel Adaptive Deceleration (275):   1.000000
    Device Accel Velocity Scaling (276):    10.000000
    Device Product ID (263):    2, 1
    Device Node (264):  "/dev/input/event6"
    Evdev Axis Inversion (277): 0, 0
    Evdev Axes Swap (279):  0
    Axis Labels (280):  "Rel X" (152), "Rel Y" (153)
    Button Labels (281):    "Button Left" (145), "Button Middle" (146), "Button Right" (147), "Button Wheel Up" (148), "Button Wheel Down" (149)
    Evdev Scrolling Distance (282): 0, 0, 0
    Evdev Middle Button Emulation (283):    0
    Evdev Middle Button Timeout (284):  50
    Evdev Third Button Emulation (285): 0
    Evdev Third Button Emulation Timeout (286): 1000
    Evdev Third Button Emulation Button (287):  3
    Evdev Third Button Emulation Threshold (288):   20
    Evdev Wheel Emulation (289):    0
    Evdev Wheel Emulation Axes (290):   0, 0, 4, 5
    Evdev Wheel Emulation Inertia (291):    10
    Evdev Wheel Emulation Timeout (292):    200
    Evdev Wheel Emulation Button (293): 4
    Evdev Drag Lock Buttons (294):  0

Already trying reinstall xserver-xorg and xserver-xorg-input-synaptics

Any ideas?

Andrey Morozov
  • 41
  • Not only touchpad but also keyboard, even USB attached keyboard and mouse stopped working. http://askubuntu.com/q/819341/283472 and here http://askubuntu.com/q/820016/283472 – MYaseen208 Sep 02 '16 at 17:46
  • Beware, don't update now (unfortunately I did). Otherwise your keyboard will stop working too http://askubuntu.com/q/820016/283472. – MYaseen208 Sep 02 '16 at 17:51

1 Answers1

1

I had the same problem after upgrading to 16.04. First thing I did was look for the synaptics config file in /etc/X11 but I don't see it anymore. So I did this:

sudo mkdir /etc/X11/xorg.conf.d
cd /etc/X11/xorg.conf.d
sudo cp /usr/share/X11/xorg.conf.d/50-synaptics.conf  .

That didn't really help any. So that step might be totally unecessary.

After that I noticed something disabled my touchpad. To fix, I did this:

synclient TouchPadOff=0

After rebooting this didn't seem to be a problem any more.

Eric Johnson
  • 6,235