Hi!

I'm using a fresh installation of KDE Neon 5.16.3 on a Fujitsu-Siemens Lifebook S935. Which, in theory, has a Synaptic Touchpad.
During the install the touchpad worked, and then booting in the first time it didn't. I checked on the net of possible solutions, like editing grub and such, but it only worked again once I installed these:

xserver-xorg-input-synaptics
xserver-xorg-input-libinput
xserver-xorg-input-evdev
xserver-xorg-input-mouse

All of that as installing alone the synaptics driver didn't work. Albeit executing a cat /proc/bus/input/devices | grep -I touchpad command showed that I do have Synaptics touchpad. Just like the xinput command did the same.
So I used the touchpad happily, but then I let the laptop to sleep. Waking it up, the Touchpad stopped working again. I tried again installing the drivers but of course had no luck with it. And it's really annoying. Any suggestions?

Thanks in advance!

I have similar problems--although mine is with the Logitech K400 touchpad--and have posted comments before
I'm guessing there's an old version or regression of libinput
some time ago, I filed a bug report and a libinput--that eventually worked--made its way into 18.10
so until Neon fixes what used to work, my temporary solution is to use Kubuntu until Neon catches up with the next LTS (and those libinput fixes)
I really need those double-clicks...

Oh, well. Thanks again!