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I have a new laptop with an "ETPS/2 Elantech Touchpad".

A single finger is only detected, if it is held in such a way that a big area touches the pad. If one touches the pad only with the fingertip, it wil not be detected, both for clicking and for moving the pointer.

Strangley, two-finger gestures are detected even if the pad is only touched with the fingertips.

On ubuntuusers.de I found that Elantech touchpads require to reload the psmouse-module by:

sudo modprobe -r psmouse
sudo modprobe psmouse proto=imps 

If I do this, one finger finally gets detected as it should, but all two or more finger gestures stop working. Also

grep -B 5 mouse /proc/bus/input/devices

tells that the touchpad now is identified as a mouse, while before the changes it was identified correctly as ETPS/2 Elantech Touchpad.

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2 Answers

Here is a small explanation on how to set the sensibility of the touchpad.

Set the values for FingerLow and FingerHigh to 15 and 20. Original value seemed to be 25 and 30.

synclient FingerLow=15
synclient FingerHigh=20
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I have submitted a patch to xf86-input-synaptics today; you can see the letter for details.

Basically, it boils down to setting FingerLow=1 FingerHigh=1 as defaults, as that are the only sensible values for Elantech touchpads.

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