Bug ID: 417686
Summary: Certain KDE/Plasma components don't respect touchpad
scroll direction setting in Wayland with Qt 5.14.x
Target Milestone: 1.0
In certain parts of Plasma, the Touchpad scroll direction setting is reversed
when running a Plasma Wayland Session with Qt 5.14.x. This bug started for me
in Plasma 5.17 when Manjaro & Arch updated to Qt 5.14. It still persists in
Plasma 5.18 with Qt 5.14.1. Most apps respect the setting, but scrolling
direction is reversed in the System Settings app, the Application Launcher, and
the wifi networks list in the plasma-nm taskbar applet. [Scrolling in other
areas may also be affected; these are the only ones I've noticed.]
STEPS TO REPRODUCE
1. Open a Plasma Wayland Session with Qt 5.14.x.
2. In System Setttings, Input Devices, Touchpad: Choose your preference for
"Invert Scroll Direction (Natural Scrolling)".
3. Attempt to scroll using the touchpad in the list of System Settings modules,
the application launcher, or the wifi networks in the plasma-nm taskbar applet.
The scrolling direction is opposite of the setting.
The scrolling direction is the same as the setting.
Linux/KDE Plasma: Linux 5.5.3-2-MANJARO
(available in About System)
KDE Plasma Version: 5.17.x and 5.18
KDE Frameworks Version: 5.65 through 5.67
Qt Version: 5.14 and 5.14.1
The bug is not present in Kubuntu 19.10 [with Plasma 5.17] or 20.04-nightly
[with Plasma 5.18] because they build against Qt 5.12.x.
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