"Touchpad" is checked in the system tray settings under "Extra items" but its icon only appears in the system tray under X11. I use neon dev unstable.
Can confirm Distribution: KDE neon Developer Edition Kernel: 4.15.0-29-generic Plasma: 5.13.80 Apps: 18.11.70 Qt: 5.11.1 Frameworks: 5.48.0 Graphics: Card-1: Intel driver: i915 v: kernel bus ID: 00:02.0 chip ID: 8086:5917 Card-2: NVIDIA GM108M [GeForce 940MX] driver: nouveau v: kernel bus ID: 01:00.0 chip ID: 10de:134d Display: wayland server: X.Org 1.19.6 driver: modesetting,nouveau unloaded: fbdev,vesa alternate: nvidia compositor: kwin wayland resolution: 1920x1080~57Hz OpenGL: renderer: Mesa DRI Intel UHD Graphics 620 (Kabylake GT2) v: 4.5 Mesa 18.0.5 compat-v: 3.0 direct render: Yes
bug persists Operating System: KDE neon Developer Edition KDE Plasma Version: 5.15.80 KDE Frameworks Version: 5.57.0 Qt Version: 5.12.0
*** Bug 407582 has been marked as a duplicate of this bug. ***
Urgh, the dataengine code reimplements talking to the DBus interface, but without the helpful abstraction layer. Should be a relatively easy fix.
Touchpad has 3 backends, 2 for X one for wayland. The kded handles global shortcuts and is a proxy for data for the applet. It supports talking to all backends The problem is that on wayland: - the relevant global shortcuts were moving into kwin directly - so the kded module was disabled on wayland to avoid a conflict - but the applet still tries to talk to kded - relevant information is available for kwin, but in a different way We can: - put an abstraction layer in the plasmoid to speak to kded or kwin - make kwin expose the same interface as kded - re-enable the kded on wayland and remove shortcut handling from kwin I don't know which is best
A possibly relevant merge request was started @ https://invent.kde.org/plasma/plasma-desktop/-/merge_requests/455
Git commit 3b4026641454c02ad3030c8cd2134a672995ffa9 by Nate Graham. Committed on 18/05/2021 at 18:15. Pushed by ngraham into branch 'master'. Delete the Touchpad applet Ths only thing this applet can do is disable or re-enable your touchpad. If you have no touchpad, it is pointless. If you have only a touchpad and no mouse, then the only thing it can do is give you a way to brick your laptop until you find a mouse you can use to re-enable the touchpad. The only conceivable non-catastrophic usage of this applet is to manually disable a laptop's touchpad when a mouse is plugged in. This is an extremely niche use case that can already be accomplished by using the "Toggle Touchpad" keyboard shortcut which is exported by the KCM, and would be better served by a setting in the touchpad KCM itself to automatically disable the touchpad when a mouse is plugged in and re-enable it when unplugged, should such a feature be deemed useful. I have my doubts, as Libinput has gotten very good at ignoring false input these days, so I think there is no longer much of a use case for disabling a touchpad at all. Overall, this applet is not worth the bugs and degradation of the user experience that it can cause. It is too dangerous to exist. Let's delete it. Related: bug 434720, bug 434718, bug 378879, bug 430029, bug 434717 FIXED-IN: 5.23 M +1 -1 kcms/touchpad/CMakeLists.txt D +0 -155 kcms/touchpad/applet/qml/contents/ui/touchpad.qml D +0 -160 kcms/touchpad/applet/qml/metadata.desktop D +0 -30 kcms/touchpad/applet/touchpad.svg R +4 -12 kcms/touchpad/dataengine/CMakeLists.txt [from: kcms/touchpad/applet/CMakeLists.txt - 065% similarity] R +0 -0 kcms/touchpad/dataengine/plasma-dataengine-touchpad.desktop [from: kcms/touchpad/applet/plasma-dataengine-touchpad.desktop - 100% similarity] R +0 -0 kcms/touchpad/dataengine/touchpad.operations [from: kcms/touchpad/applet/touchpad.operations - 100% similarity] R +0 -0 kcms/touchpad/dataengine/touchpadengine.cpp [from: kcms/touchpad/applet/touchpadengine.cpp - 100% similarity] R +0 -0 kcms/touchpad/dataengine/touchpadengine.h [from: kcms/touchpad/applet/touchpadengine.h - 100% similarity] R +0 -0 kcms/touchpad/dataengine/touchpadservice.cpp [from: kcms/touchpad/applet/touchpadservice.cpp - 100% similarity] R +0 -0 kcms/touchpad/dataengine/touchpadservice.h [from: kcms/touchpad/applet/touchpadservice.h - 100% similarity] https://invent.kde.org/plasma/plasma-desktop/commit/3b4026641454c02ad3030c8cd2134a672995ffa9