Touchpad not working on Ubuntu 14.04

14.04 touchpad

12,050

Solution 1

Reference: Touchpad under 16.04 not working

Solution #1

Modify the GRUB file with a text editor (nano works too)
```
sudo -H gedit /etc/default/grub
```

Locate this line in the grub file

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"

Replace it with the following:

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash i8042.nopnp"

Save the GRUB file and run the update
```
sudo update-grub
```
Shutdown / reboot for the changes to take effect.
```
sudo shutdown -r now
```

Solution #2

Modify the GRUB file with a text editor (nano works too)
```
sudo -H gedit /etc/default/grub
```

Locate this line in the grub file

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"

Replace it with the following: (ONLY DIFFERENCE FROM SOLUTION 1)
```
GRUB_CMDLINE_LINUX_DEFAULT="i8042.reset quiet splash"
```
Save the GRUB file and run the update
```
sudo update-grub
```
Shutdown / reboot for the changes to take effect.
```
sudo shutdown -r now
```

Solution 2

My research indicate that your laptop has a SynPS/2 Synaptics TouchPad

Execute the following command

xinput list

You should see a output like the following

⎡ Virtual core pointer                      id=2    [master pointer  (3)]
⎜   ↳ Virtual core XTEST pointer            id=4    [slave  pointer  (2)]
⎜   ↳ Logitech Unifying Device. Wireless PID:1025   id=11   [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)]
    ↳ USB Camera                            id=9    [slave  keyboard (3)]
    ↳ AT Translated Set 2 keyboard          id=10   [slave  keyboard (3)]
    ↳ Toshiba input device                  id=12   [slave  keyboard (3)]
    ↳ Logitech Logitech Wireless Headset    id=14   [slave  keyboard (3)]

To enable the touch pad

xinput set-prop [device id] "Device Enabled" 1

You can do a following to check the properties

xinput --watch-props [device number]

You also can try

lsmod 
lsmod | grep mouse (Check the if the touchpad is loaded)

sudo modprobe -r psmouse
sudo modprobe psmouse proto=imps

Also you can take look at following post too.

Touchpad not working on MSi U130 after login in

12,050

Vimal Jain

Updated on September 18, 2022

Comments

Vimal Jain almost 2 years

I am using Dell Inspiron 15R 5521 laptop. It had Ubuntu 12.04 installed at time of purchase. Everything was working fine.Then i installed windows in it and now i have removed windows and installed Ubuntu 14.04 . The problem i am facing is that my touchpad is not detected in it. I searched on google , askUbuntu but could not get solution to my problem. Also i went through this link (https://help.ubuntu.com/community/SynapticsTouchpad) but it did not help. Can you please help me here. Let me know what other information is required here.

Thanks.
- Admin almost 10 years
  
  try with installing sudo apt-get install xserver-xorg-input-all. If it is already installed, purge and reinstall.
nightcod3r almost 7 years

I recommend xinput --list-props instead to check the device's properties, so the process ends up.