Bug 456546

Summary:	Compose key = Right Alt has no effect when using non-primary keyboard layout
Product:	[Plasma] kwin	Reporter:	Rose Hudson <rose>
Component:	input	Assignee:	KWin default assignee <kwin-bugs-null>
Status:	RESOLVED UPSTREAM
Severity:	minor	CC:	kde
Priority:	NOR
Version First Reported In:	5.25.2
Target Milestone:	---
Platform:	Arch Linux
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description Rose Hudson 2022-07-10 12:03:05 UTC

*This occurs on both Wayland and X11 Plasma sessions, so maybe the problem lies somewhere upstream.*

STEPS TO REPRODUCE
1. Set keyboard layout to English (UK, Colemak-DH)
2. Enable Position of Compose Key -> Right Alt in advanced keyboard settings
3. Try to use the compose key

OBSERVED RESULT
Right Alt functions as normal, as a modifier to access alternate characters

EXPECTED RESULT
Right Alt functions as compose key

SOFTWARE/OS VERSIONS
KDE Plasma Version: 5.25.2
KDE Frameworks Version: 5.95.0
Qt Version: 5.15.5

ADDITIONAL INFORMATION
Compose key = Right Alt works fine on qwerty.

Comment 1 Rose Hudson 2023-02-02 15:32:17 UTC

Turns out that moving colemak-dh to the top of the layouts list made the compose key work.

Comment 2 David Edmundson 2023-05-04 08:27:57 UTC

>*This occurs on both Wayland and X11 Plasma sessions, so maybe the problem lies somewhere upstream.*

Sorry for the delay. You're absolutely right, on X11 we don't handle compose keys directly, the X server takes care of this. 

The relevant upstream is xkbcommon

Comment 3 Rose Hudson 2023-05-08 18:12:00 UTC

> Sorry for the delay. You're absolutely right, on X11 we don't handle compose
> keys directly, the X server takes care of this. 

Is xkbcommon responsible in the Wayland session too?