Ubuntu: Ubuntu 16.04. Synaptics touchpad features stop working



Question:

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?


Solution: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.


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