Bug 502154

Summary:	"Both Shifts together enable Caps Lock" option breaks layout switching on "Alt+Shift" (NOT "Shift+Alt")
Product:	[Plasma] kwin	Reporter:	Ilia Pozdnyakov <iliazeus>
Component:	input	Assignee:	KWin default assignee <kwin-bugs-null>
Status:	REPORTED ---
Severity:	normal	CC:	dev, duha.bugs, nate
Priority:	NOR
Version First Reported In:	6.3.3
Target Milestone:	---
Platform:	Arch Linux
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description Ilia Pozdnyakov 2025-03-29 14:02:00 UTC

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SUMMARY
When the "Compatibility Options: Both Shifts together enable Caps Lock" and "Switching to another layout: Alt+Shift" options are both enabled in keyboard settings, the "hold Alt and press Shift" shortcut does not switch the layout; the "hold Shift and press Alt" way still works. If the "Both Shifts together enable Caps Lock" option is disabled, both "Shift+Alt" and "Alt+Shift" work as expected.

STEPS TO REPRODUCE
1. Enable both "Compatibility Options: Both Shifts together enable Caps Lock" and "Switching to another layout: Alt+Shift"
2. Set up more than one keyboard layout
3. Press Shift while holding Alt

OBSERVED RESULT
Layout is unchanged

EXPECTED RESULT
Layout should switch

SOFTWARE/OS VERSIONS
Operating System: Arch Linux 
KDE Plasma Version: 6.3.3
KDE Frameworks Version: 6.12.0
Qt Version: 6.8.2
Kernel Version: 6.13.8-zen1-1-zen (64-bit)
Graphics Platform: Wayland
Processors: 8 × 11th Gen Intel® Core™ i7-11390H @ 3.40GHz
Memory: 15.4 GiB of RAM
Graphics Processor: Intel® Iris® Xe Graphics
Manufacturer: Dell Inc.
Product Name: Vostro 15 5510

ADDITIONAL INFORMATION