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This post was originally in Danish. Check post revisions.

I've had Ubuntu installed 12.04 for 3 days now. My touchpad worked fine right for 20 minutes after which it just stopped working for no reason?

I'm using an Asus k53br model. So how do I get it working again?

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English:Did you maybe hit a button on your keyboard that disable the touchpad. Danish: Har du måske trykke på en knap på tastaturet, deaktivere touchpad'en. – Max Tither Aug 19 '12 at 19:11

It's possible that the touchpad has been disabled. Try using the key combination for re-enabling it. OR to re-enable it via the command line follow these steps:

  • Run xinput list in the terminal (the shortcut key combination for terminal is Ctrl+Alt+t).

  • Check whether you can see the touchpad in the list. In my computer it shows AlpsPS/2 ALPS DualPoint TouchPad.

enter image description here

  • Now run the following command:

    xinput set-prop 15 "Device Enabled" 1

    Here 15 is the device id.

However, as this Ubuntu Wiki page says, it can be due to a bug. You should go to the mentioned page and check the section named In case your Touchpad stops working after a while.

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