How do I move mouse's arrow with 1 index finger on topside of touchpad while other index finger touches left bottom area of the touchpad?

Question

How do I move the pointer around with one index finger on the topside of the touchpad while my other index finger is static and touching the left bottom side of the touchpad? I can do this in Windows 10 but for some reason the mouse arrow does not move in Ubuntu when I do this.

system:Ubuntu 18.04 with kernel 5.4.0-050400-generic and LXDE as desktop environment.

Thanks

score 0 · Accepted Answer · edited Jan 06 '21 at 10:40

Copying /usr/share/X11/xorg.conf.d/40-libinput.conf to file 90-libinput.conf in the same folder and updating 90-libinput.conf as follows fixes the problem:

Section "InputClass"
     Identifier "libinput touchpad catchall"
     MatchIsTouchpad "on"
     MatchDevicePath "/dev/input/event*"
     Driver "libinput"
         Option "Tapping" "True"
         Option "DisableWhileTyping" "True"
         Option "TransformationMatrix" "4.000000 0.000000 0.000000 0.000000 4.000000 0.000000 0.000000 0.000000 1.000000"
EndSection

How do I move mouse's arrow with 1 index finger on topside of touchpad while other index finger touches left bottom area of the touchpad?

1 Answers1