I connected USB mouse and it works. But I want to use the mousepad of my laptop.
Can anyone help me to fix this?
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In general, a little bit more information is needed in order to have an idea of the computer you are running. Although most hardware is supported in linux nowadays, it does not mean that yours is fully supported. What was the laptop running before you installed ubuntu 14, was it another linux distribution where the touchpad was working?
The fact that it does not work could mean that you may need a more recent distribution for that hardware (What made you think that ubuntu 14 was fully supported?).
About debugging touchpads in general, some useful reading can be found here: https://wiki.ubuntu.com/DebuggingTouchpadDetection.
On my laptop if i run
cat /proc/bus/input/devices | grep -i touch
I get the following device N: Name="AlpsPS/2 ALPS DualPoint TouchPad"
What do you get?
Be aware that in some HP laptops, there is a button (often on the touchpad itself) which will turn off the touchpad -- unlikely for that to be your problem, I thought it worth mentioning.
Cheers.
alex pelhov
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Try going to "Mouse and touchpad" in your settings and should be a button to enable or disable the touchpad.
