After update: Deadkeys and ctrl+shift+u no longer working as expected

Ask Fedora
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1

After updating KDE Plasma deadkeys ¨ + u or ctrl+shift u no longer work. Was this feature removed?

Operating System: Fedora Linux 44
KDE Plasma Version: 6.7.0
KDE Frameworks Version: 6.27.0
Qt Version: 6.11.1
Kernel Version: 7.0.12-201.fc44.x86_64 (64-bit)
Graphics Platform: Wayland
Processors: 22 × Intel® Core™ Ultra 7 155H
Memory: 64 GiB of RAM (62.3 GiB usable)
Graphics Processor 1: Mesa Intel® Arc
Graphics Processor 2: zink Vulkan 1.4
Manufacturer: LENOVO
Product Name: 21KS002EMZ
System Version: ThinkPad P16s Gen 3
2

The dead keys and Ctrl-Shift-u are input method features.
You have to enable an input-method framework:

You also could export QT_IM_MODULES='wayland;ibus'

3

In the System Settings, Keyboard >> Virtual Keyboard, make sure “iBus Wayland” is selected.

Maybe the Plasma 6.7 upgrade switched this setting to “Plasma Keyboard”?

4

This is indeed the case. Who on earth thought that a good idea?