[Touchpad-KCM] [Bug 408325] Touchpad KCM crashes on launch

[Eric Donkersloot]

https://bugs.kde.org/show_bug.cgi?id=408325

--- Comment #17 from Eric Donkersloot <eric.donkersloot at gmail.com> ---
Hi guys,

I guess I'm subscribed to the wrong bug report. This is teh behaviour I'm
seeing since 5.16:

On 5.15.5 (libunput installed, no xf86-input-synaptics installed):

1. Everything works fine, no crashes whatsoever
2. When I connect a bluetooth mouse, the touchpad disables as expected
3. When I disconnect the bluetooth mouse again, the touchpad is re-enabled

On 5.16 (libinput installed, no xf86-input-synatics installed):

1. kdeinit5 crashes after logging in
2. When I connect a bluetooth mouse, the touchpad disables as expected
3. When I disconnect the bluetooth mouse again, the touchpad is _not_
re-enabled

A workaround for the behaviour above:

1. Manually enable the touchpad again
2. Log out and log in again
3. Install xf86-input-synaptics, this will also prevent kdeinit5 from crashing

My system:

Lenovo X1 Carbon 6th gen
Operating System: Arch Linux 
KDE Plasma Version: 5.16.0
KDE Frameworks Version: 5.59.0
Qt Version: 5.12.4
Kernel Version: 5.1.11-arch1-1-ARCH
OS Type: 64-bit
Processors: 8 × Intel® Core™ i7-8550U CPU @ 1.80GHz
Memory: 15,4 GiB of RAM

Should a file another bug?

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