[20.04.2] Touchpad hell

Support & Help Requests
#1

I've been using 20.04.2-latest on a laptop with a Logitech K400+ (basically a wireless keyboard with an embedded touchpad) for several months now and since during installation time I was able to 2x tap on the touchpad of the K400+ and MATE reacted to it as a double click (Same as when using the touchpad of the laptop itself).

Sometimes last week during a regular user session the 2x tap function of the K400 suddently stopped working for no valid reason. Yet the touchpad of the laptop still worked properly...

As I have looked around the other posts of this forum I have noticed somewhat of a history of Love in between the touchpad and MATE yet I wasn't able to find any other same exact behaviour yet I can tell you this:

$ cat /proc/bus/input/devices | grep -i touch   
N: Name="ETPS/2 Elantech Touchpad"
$

and that the touchpad option is enabled under Control Center.

Any ideas or what would be the proper next steps to diagnose this unique little problem of mine?

#2

Not sure if this might help ... give it a try.

https://medium.com/@barcelos.ds/how-to-fix-touchpad-mouse-not-working-in-linux-operating-systems-b328bb43b4c5

#3

Hello @DLS
If you press the function key and the left mouse key together, does it work then?
This would disabled/enabled tap to click (in theory).
image

If not, does a tripple tap result in a double click?

#4

After a much needed follow-up:

  1. Thanks for both of your answers <3
  2. @Geus that's the one! SOLVED.

Cheers guys!

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