Ubuntu – Touchpad not working on Ubuntu 14.04

14.04touchpad

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.

Best Answer

  • 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

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