Synaptics touchpad tap-to-click is not working in Ubuntu 15.10(Gnome)

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kmario23

I upgraded my ubuntu gnome installation to 15.10 and everything is kinda good except for the touchpad single-tap functionality. Single-tap-to-click is not working. And I have tried all possible solutions like editing synaptics.conf file.

One thing that I noticed is the following, which is kinda strange. For every input device the schema has an original and deprecated entry but for touchpad it just has deprecated. Is this the cause?

I don't know how to resolve this issue. Please help!

org.gnome.settings-daemon.peripherals.input-devices 
org.gnome.settings-daemon.peripherals.keyboard 
org.gnome.settings-daemon.peripherals.keyboard.deprecated:/
org.gnome.settings-daemon.peripherals.mouse 
org.gnome.settings-daemon.peripherals.mouse.deprecated:/
org.gnome.settings-daemon.peripherals.smartcard 
org.gnome.settings-daemon.peripherals.touchpad.deprecated:/
org.gnome.settings-daemon.peripherals.touchscreen 
org.gnome.settings-daemon.peripherals.trackball.deprecated:/
org.gnome.settings-daemon.peripherals.wacom:/
org.gnome.settings-daemon.peripherals.wacom.eraser:/
org.gnome.settings-daemon.peripherals.wacom.stylus:/
org.gnome.settings-daemon.peripherals.wacom.tablet-button:/

Below is the screenshot of my mouse&touchpad settings:

Also, my synclient results are like,

$ synclient | grep TapButton

TapButton1   = 0  
TapButton2   = 0  
TapButton3   = 0

my xinput command yields the following,

$ xinput list
Virtual core pointer              id=2  [master pointer  (3)]  
 ↳ Virtual core XTEST pointer        id=4   [slave  pointer  (2)]  
 ↳ SynPS/2 Synaptics TouchPad        id=12  [slave  pointer  (2)]  
 ↳ MCE IR Keyboard/Mouse (ene_ir)    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)]  
 ↳ Power Button                   id=8  [slave  keyboard (3)]  
 ↳ Sleep Button                   id=9  [slave  keyboard (3)]

Results of xinput list-props 12 command:

kmario23

I finally found a fix to solve my problem:

I added the following line to my bashrc so that it can compile every time I log in.

synclient TapButton1=1 TapButton2=3 TapButton3=2

Although not a pretty hack, but it works fine. Hope the community fixes the bug..

Update: This hack seems to work fine in Ubuntu 17.04 also, which means the bug isn't fixed yet by the community.

P.S. Also see this great solution

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edited at2021-07-8

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