1. Search for mouse


2. Click on Mouse and Touchpad


3. Click off/on button to the right of touchpad settings.

check this link out: How to disable-enable touchpad in ubuntu 11.10

The answer found there is really neat:

sudo add-apt-repository ppa:atareao/atareao

sudo apt-get update

sudo apt-get install touchpad-indicator

After this you will get a switch in your notification area.

The only thing I would wish is to be able to set the switch key to Fn+F8 (which is a touchpad key switch on my keyboard...

Based on answer given by @Peng Wu I created a bash script that can be used...

#!/bin/bash



declare -i ID

ID=`xinput list | grep -Eo 'TouchPads*id=[0-9]{1,2}' | grep -Eo '[0-9]{1,2}'`



xinput set-prop $ID "Device Enabled" 0



echo 'Touchpad has been disabled.'

You can manually run it or run it on start. Then you can make the script run at boot.

Another bash script to toggle touchpad:

#!/bin/bash



declare -i ID

ID=`xinput list | grep -Eo 'TouchPads*id=[0-9]{1,2}' | grep -Eo '[0-9]{1,2}'`

declare -i STATE

STATE=`xinput list-props $ID|grep 'Device Enabled'|awk '{print $4}'`

if [ $STATE -eq 1 ]

then

    xinput disable $ID

    echo "Touchpad disabled."

else

    xinput enable $ID

    echo "Touchpad enabled."

fi

Simply, in a terminal:

synclient TouchpadOff=1

However, the above seems to not work anymore in Ubuntu 16.04. In this case, then xinput still works:

xinput set-prop `xinput --list | awk '/TouchPad.*pointer/ {print $7}' | sed 's/id=(.*)/1/'` "Device Enabled" 0

UPDATED SOLUTION:

Instead of xinput, with id variables that can change, better use synclient as indicated in other answers, like this.

sudo apt install xserver-xorg-input-synaptics

To turn off touchpad:

synclient TouchpadOff=1

To turn on:

synclient TouchpadOff=0

To be used with launchers or shortcuts as said below.

This is just the application of the commands in this answer under the present question. The solution below is limited to Xfce/Xubuntu, but although I made it by chance, I find it too elegant not too share it here. So, I created a separate question initially, just for Xubuntu. That question cannot but be a duplicate of this one and may be closed for this reason, that's why I dare to re-post that answer here.

It is about these two commands:

Disable:

xinput set-prop 15 "Device Enabled" 0

Enable:

xinput set-prop 15 "Device Enabled" 1

The id number will be found by running

xinput list

This is how to disable your touchpad automatically on startup
This method will disable the pad more safely by name rather than by id.
Here is how to get the name of your touchpad:

$ xinput list --name-only | grep -i Touchpad

ETPS/2 Elantech Touchpad

Create a bash script file. I added the file to ubuntu Startup Applications so it runs on every restart. Remember to make the file executable. Here are the contents:

#!/bin/bash

$ xinput disable 'ETPS/2 Elantech Touchpad'

I use the following script to enable/disable touchpad.
I also assigned it to the keyboard shortcut.

Usage: toggle_touchpad.sh [on|off]

if you run without arguments then it will simply invert the current state of he touchpad.

#!/bin/bash

# toggle_touchpad.sh



is_off=`synclient | grep -Pio "TouchpadOff.*?(d)" | grep -Eo "[01]"`



if [ -z "$1" ]; then

    echo "Inverting touchpad state"



    if [ "$is_off" -eq '0' ];then

        synclient TouchpadOff=1

        notify-send "Touchpad Disabled"

    else

        synclient TouchpadOff=0

        notify-send "Touchpad Enabled"

    fi



else



    if [ "$1" == "on" ]; then

        echo "Turning on touchpad"

        synclient TouchpadOff=0

        notify-send "Touchpad Enabled"

    elif [ "$1" == "off" ]; then

        echo "Turning off touchpad"

        synclient TouchpadOff=1

        notify-send "Touchpad Disabled"

    else

        echo "Unknown arg! Pass no args or on/off !"

    fi



fi

This worked for me in 11.10 :

⎡ 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)]

⎣ 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)]

    ↳ Laptop_Integrated_Webcam_1.3M             id=10   [slave  keyboard (3)]

    ↳ AT Translated Set 2 keyboard              id=11   [slave  keyboard (3)]

    ↳ Dell WMI hotkeys                          id=13   [slave  keyboard (3)]

It displays all the input devices connected. Note that they all have an id. Since 12 is the id for my touchpad, running the following command will disable it.

xinput set-prop 12 "Device Enabled" 0

and I would put it in .bashrc or whatever except that I'm not sure that device 12 (actually 11 for me) is always the touchpad.

Now if I could just get the up-arrow in nautilius to work and see the .dirs

Define keyboard shortcuts

^{(this answer was copied from an invalid edit)}

Instead of remembering that command every time you wish to enable/disable the touchpad, you can instead add it as a keyboard combination shortcut.

Under preferences in Keyboard Shortcuts click add. Give a name to the shortcut like "Disable Touchpad" or something and add the command you discovered above

xinput set-prop <id> "Device Enabled" 0

and click apply. Then add another shortcut called "Enable Touchpad" or something similar to the first and change the previous command to a 1 at the end

xinput set-prop <id> "Device Enabled" 1

those are the off/on respectivly.

Now that those are added, click on Enable Touchpad's Shortcut column (should say 'disabled') and type the keyboard shortcut you want it to be, I chose Win+1 (Hold Windows Key and press the number 1). Do the same for Disable Touchpad, I chose Win+2.

Now Win+1 enables my touchpad and Win+2 disables it.

First check if your laptop has enable/disable touchpad keyboard shortcut, by any chance! On my Lenovo Thinkpad T500 it's Fn+F8

In my case, fn+F9 is mapped into Touchpad toggle.

But the key does nothing just showing touch pad icon on the right-top of the screen like this.

Here is a solution for toggling touchpad just by pressing a shortcut.

1. Getting id of your touchpad

$ xinput list

2. Writing a script for toggling touchpad

So I got a bash script file for toggling touchpad with 'xinput' command(original script can be found here).

In my case, the id of touch pad was 12.

#!/bin/bash



device=12

state=`xinput list-props "$device" | grep "Device Enabled" | grep -o "[01]$"`



if [ "$state" -eq '1' ];then

  xinput --disable "$device"

else

  xinput --enable "$device"

fi

Save the above script file as .toggleTouchPad.sh at where you want.

3. Keyboard shortcut for running the script

And last step is adding keyboard shortcut to run the script file.

So just write sh /PATH/TO/SCRIPT in the Command of your shortcut window .

4. Try the shortcut

Press the shortcut and check if touchpad is toggled.

It worked at ASUS A556UA Laptop and Ubuntu14.04 x64 installed.

Thing to be improved.

• assigning Touchpad toggle key to the above custom shortcut would not work


• it just shows touch pad icon on the right-top of the screen


• so I had to assign another key(super+F9) rather than Touchpad toggle(fn+F9) key.

please suggest a way to assign Touchpad toggle key to a custom shortcut for complete solution

For Ubuntu 16.04

For disable touchpad:

xinput --disable $(xinput --list | grep -i 'touchpad' | grep -o 'id=[0-9]*' | sed 's/id=//') 

and for enable touchpad:

xinput --enable $(xinput --list | grep -i 'touchpad' | grep -o 'id=[0-9]*' | sed 's/id=//')

https://bitbucket.org/barseghyanartur/xinput

It's a very tiny code which allows you to disable/enable the touchpad from terminal.

Simply follow the Instructions below:

Install:

$ pip install xinput

Disable touchpad:

$ disable-touchpad

Enable touchpad:

$ enable-touchpad

Just add a couple of bash functions to your .bashrc to give you a togggle...

#toggle-touchpad on|off

function touchpadon  { /usr/bin/xinput --enable $(xinput --list | grep -Eo 'TouchPads*id=[0-9]{1,2}' | grep -Eo '[0-9]{1,2}') ; echo "touchpad enabled";}

function touchpadoff  { /usr/bin/xinput --disable $(xinput --list | grep -Eo 'TouchPads*id=[0-9]{1,2}' | grep -Eo '[0-9]{1,2}') ; echo "touchpad disabled";}

install the Jupiter app. You can disable the touchpad with it and it is remembered. This has worked effectively for me on both a Lenovo IdeaPad and ThinkPad on 11.04, 11.10, and 12.04.

It is actually very simple to disable touchpad in Ubuntu. Just remove the package xserver-xorg-input-synaptics that is required for using touchpads in Ubuntu!

sudo apt-get remove xserver-xorg-input-synaptics

It is the only way to disable touchpad permanently that worked for me. The other ways were only temporary:

xinput list

xinput set-prop IDOFTOUCHPAD "Device Enabled" 0 

synclient TouchpadOff=1 

I am using LXDE and I was not able to automatically disable the touchpad by adding these lines to ~/.config/lxsession/LXDE/autostart or /etc/xdg/lxsession/LXDE/autostart with a @-prefix. It was just ignored.

And I tried disabling touchpad with dconf-editor (org.gnome.desktop.peripherals.touchpad) and gconf-editor (desktop.gnome.peripherals.TOUCHPADNAME), but both did not work. The settings on dconf-editor have no effect at all and on gconf-editor it keeps showing the error message "This key has no schema".

I tried using the laptop function key (fn) to disable the pointer and it works. It did not work during my 11.04 days though, so give that a try.

If your laptop keyboard doesn't have a touchpad on/off special-function key, maybe you can find an on-screen virtual keyboard that simulates it (although I haven't found one).

Short of that, this works well:

sudo apt-get install gpointing-device-settings

What worked for me on Ubuntu 12.04 LTS with Dell Laptop

I wanted disable the pointer which is in the middle of the keyboard and creates a lot of issues while typing. So:

$ xinput list

 ⎡ Virtual core pointer                     id=2

 ⎜   ↳ Virtual core XTEST pointer               id=4

 ⎜   ↳ Wacom Graphire2 4x5 eraser               id=9

 ⎜   ↳ Wacom Graphire2 4x5 cursor               id=10

 ⎜   ↳ Wacom Graphire2 4x5                      id=11

 ⎜   ↳ AlpsPS/2 ALPS DualPoint TouchPad         id=14

 ⎜   ↳ Macintosh mouse button emulation         id=15

 ⎜   ↳ DualPoint Stick                          id=13

 ⎣ Virtual core keyboard                    id=3

     ↳ Virtual core XTEST keyboard              id=5

     ↳ Video Bus                                id=6

     ↳ Power Button                             id=7

     ↳ Sleep Button                             id=8

     ↳ AT Translated Set 2 keyboard             id=12



The device I want to disable has id 13. Use xinput to list its properties:



$ xinput -list-props 13

 Device 'DualPoint Stick':

    Device Enabled (115):   0

 [...several lines removed...]

 $ xinput -set-prop 13 115 0

This has disabled the Dualpoint stick. But none of the other answers worked for me. I did

Install dconf-tools:

sudo apt-get install  dconf-tools

dconf-editor

Then go to org -> gnome -> settings-daemon -> peripherals -> touchpad and uncheck touchpad-enabled field

I found a nice solution of creating a key binding that will invoke the command:

xdotool key 199

where 199 is a keycode recognized as XF86TouchpadToggle. This way one can make a key combination of his/her choice to behave like a special key some laptops have to toggle the touchpad as desktop environments like Mate or Cinnamon handle it great. You can check keycodes by this command:

xmodmap -pke

I have created a how-to on my blog: https://artofcode.wordpress.com/2017/10/01/how-to-add-a-key-binding-to-toggle-a-touchpad-under-linux/

I have a Medion Akoya notebook model P7812 using Ubuntu 11.10 (64 bit) and the Fn & F6 key combination disables the touchpad.

Alternative solution which works for all touchpads, no id needed.

open a terminal and write "gedit toggle_touchpad.sh"

#!/bin/bash

condition="$(gsettings get org.gnome.settings-daemon.peripherals.touchpad touchpad-enabled)"



if [ "$condition" == "false" ]; then

     gsettings set org.gnome.settings-daemon.peripherals.touchpad touchpad-enabled true

elif [ "$condition" == "true" ]; then

    gsettings set org.gnome.settings-daemon.peripherals.touchpad touchpad-enabled false

fi

Save the file and exit. Now you have a file with the name "toggle_touchpad.sh"

Run the command chmod +x toggle_touchpad.sh to make the file executable.

Place the file in any folder you like. Let us assume that you have it in the folder /home/username/myscripts/.

From the menu on the top-right go to system-settings->keyboard->shortcuts->custom-shortcuts.

Create a new shortcut and put as name whatever you want. Put as command /home<username>;/myscripts/toggle_touchpad.sh where "username" is your username

Assign whatever keyboard shortcut you want.

Ready :)

P.S. Personally I put the file in the /opt/myscripts/ folder but in order to put it there you should run the following commands after creating the file:

sudo mkdir /opt/myscripts/



sudo mv toggle_touchpad.sh /opt/myscripts/



sudo chown <username>:<username> /opt/myscripts/toggle_touchpad.sh



chmod +x  /opt/myscripts/toggle_touchpad.sh

where "username" is your username

Then when you will create the shortcut you will use the path "/opt/myscripts/toggle_touchpad.sh" instead of the one mentioned above

first use xinput list to get the base device name of your touchpad... than add the xinput disable command with the full device name (in double qoutes to accept the whitespace) to the ~/.bashrc file (ie xinput disable "SynPS/2 Synaptics TouchPad") the scripts above proved very hit or miss.

This method works, but I can't seem to use the "win" button. So I used the CtrlF1 & F2 for it.

Currently my laptop OS is ubuntu 14.04LTS.

Oh, need to find out the xinput < id > with the command below. For Ubuntu 14.04, it is the "SynPS/2 Synaptics TouchPad"

xinput list

SynPS/2 Synaptics TouchPad                  id=###

I tried all the previous answers here without success.

What worked for me on Ubuntu 16.10 was

killall syndaemon 

syndaemon -i 1 -KRd

You may want to change the value 1 to 0.5.

So, by combining Krzysztof Tomaszewski and JaeJun LEE's answers I came to this solution.

Create the following toggleTouchPad.sh script and save it wherever you want:

#!/bin/bash

device=14

state=`xinput list-props "$device" | grep "Device Enabled" | grep -o "[01]$"`

if [ "$state" -eq '1' ];then

  xinput --disable "$device" && sleep 1 && xdotool key 201

else

  xinput --enable "$device" && sleep 1 && xdotool key 200

fi

where 14 is your TouchDevice Id (refer to JaeJun LEE's answer)

1. Go to Ubuntu Settings -> Devices -> Keyboard




2. At the end of the list, click on + to add a new custom shortcut




3. Name it Toggle Touchpad, with Command /path/to/.toggleTouchPad.sh and whatever key combination you'd want (I've just chosen Super + F7).

Now, whenever you hit your chosen key combination, it not only toggle the Touchpad but it also shows a notification icon thanks to xdotool

To disable my dell latitude's middle stick, I put this on .profile of Ubuntu so every-time I start/reboot my laptop, it will disable that input.

I used the --id-only to avoid mismatch in grep

declare -i ID

ID=`xinput list --id-only 'AlpsPS/2 ALPS DualPoint Stick' | grep -Eo '[0-9]{1,2$

declare -i STATE

STATE=`xinput list-props $ID|grep 'Device Enabled'|awk '{print $4}'`

if [ $STATE -eq 1 ]

then

    echo "id" $ID

    xinput disable $ID

    echo "Touchpad disabled."

else

    echo "id" $ID

    xinput enable $ID

    echo "Touchpad enabled."

fi

In my case, with a Slimbook and Kubuntu, I just used the combination: Fn+Z.

This disables or enables the touchpad.