Disabling tapping on a non-synaptics touchpad.

[Yoru3]

My system is up and running on Linux Lite 4.0 and all is well, including what appears to be a fully functional wireless Keyboard/touchpad. I have zoom and two finger scroll, in addition to the normal  touchpad cursor control. The only minor detail is that the tap to click needs to be disabled, because it is too easy to make accidental clicks.


The problem is that it appears not to be a Synaptics touchpad, and consequently the Mouse and Touchpad within the Control Panel, does not have a Touchpad tab under devices, and no Tap touchpad to click box.


The wireless keyboard/touchpad is the VicTsing model KG3608. The system recognises it as device  DaKai 2.4 RX


By looking at the X log, and installing libinput-tools, as far as I can tell, it is the libinput driver that is being used, as a generic support.


Having determined that it is the /usr/share/X11/xorg.conf.d directory that contains the startup options configuration files (I think), I added Option “Tapping” “0” within the Section “InputClass”
of the 40-libinput.conf file, as follows.


Section ”InputClass”
Idendifier “libinput pointer catchall”
MatchIsPointer “on”
MatchDevicePath “/dev/input/event*”
Option “Tapping” “0”
Driver “libinput”
EndSection


I used pointer because that’s what the libinput list-devices said. But this had no effect.


Unfortunately, at an earlier stage, I managed to actually crash the xserver, by having a non-unigue identifier conflict. But was able to get back in via tty2 and recover


I’m now somewhat apprehensive of making more changes, when the non-synaptics touchpad, although working, does not appear to be fully supported.


Although the Synaptics may well be the de facto on Notebooks and Laptops, it seems there are an increasing number of wireless keyboards that do not use the Synaptics.


So the question is has anyone else had this problem, and know of a solution, or have a knowledgable suggestion that might allow the tap to click to be disabled.

[Yoru3]

Just an update.


I’ve finally given up on the VicTsing model KG3608 wireless keyboard/touch pad.


Seeing that the Amazon price of the Logitech K400+ had dropped to a more sensible level, at lest in the UK, I got one, which arrived the next day, without having to pay for next day delivery.


Anyway, it very similar to the Logitech K400r, that I use on my Windows 7 machine (that I’m migrating from).


The thing is, the K400r had an issue regarding tapping to click on Windows 7, even though it was fully support, and had a disable box in its configuration tool, but it was unreliable and didn’t always fully disable.


HOWEVER, some wise keyboard design engineer put in an undocumented feature, that disables tap to click on the keyboard itself. By using the Fn + left click key, which has to be used each time the keyboard is turned.


Luckily, the K400+ still has the same undocumented feature.


Which is very fortunate, because it is now apparent that even the Logitech K400+ wireless keyboard does not use a Synaptics touchpad. Which puts it in the same situation as the VicTsing by also not having a Tap touchpad box to click, within the Control Panels, Mouse and Touchpad.


It would seem that probably most, if not all wireless keyboards with a touchpad do not have a Synaptics touchpad. Probably due to the prohibitive cost of the royalties, on a relatively lower price item, when compared to Laptops and Notebooks, and where there is a more appropriate low cost alternative available.


Given that wireless keyboards with touchpad appear to be increasing in popularity and number available products, perhaps the Ubuntu people, assuming it is a kernel rather than a distro issue, should be giving non-Synaptics touchpad support a greater priority.


Meanwhile, at least the Logitech undocumented feature is a fix, if not a more general solution for all keyboard touchpads.