Jelly Comb WGJP-012 on Debian 10


To use the cheapo USB touchpad branded as Jelly Comb WGJP-012 on Debian 10 Buster, you might have to do a bit of tweaking.

  1. Make sure you have xserver-xorg-input-libinput, xserver-xorg-input-evdev and server-xorg-input-mouse installed.

  2. Make sure you do not have xserver-xorg-libinput-synaptics installed.

  3. Create a file /etc/X11/xorg.conf.d/40-libinput.conf with the following contents.

     Section "InputClass"
     	Identifier "libinput touchpad catchall"
     	MatchIsTouchpad "on"
     	MatchDevicePath "/dev/input/event*"
     	Driver "libinput"
     	Option "Tapping" "on"

After a reboot, you should be able to left-click (single tap), right-click (tap with two fingers) and scroll (swipe with two fingers.)

(Infos taken from the Debian Wiki, but shortened for the Jelly Comb touchpad.)