Bug 465390

Summary:	Moving windows with alt+left click makes alt behave as part of a shortcut for menu items
Product:	[Plasma] kwin	Reporter:	Riccardo Robecchi <sephiroth_pk>
Component:	general	Assignee:	KWin default assignee <kwin-bugs-null>
Status:	RESOLVED DUPLICATE
Severity:	normal	CC:	nate
Priority:	NOR
Version First Reported In:	5.26.5
Target Milestone:	---
Platform:	Neon
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description Riccardo Robecchi 2023-02-06 20:28:29 UTC

SUMMARY
KWin offers the ability to move windows by holding the "alt" key. However, this does not stop alt from behaving as it normally would, which means as part of a shortcut to a menu item (e.g. "alt+f" to open the "file" menu). I have found this to happen especially frequently with Thunderbird.

STEPS TO REPRODUCE
1. Press "alt" and drag a window
2. Stop pressing "alt"

OBSERVED RESULT
The dragged window behaves as if "alt" were still pressed.

EXPECTED RESULT
The dragged window behaves as if "alt" were not still pressed, as it is actually not.

SOFTWARE/OS VERSIONS
Linux: KDE neon
KDE Plasma Version: 5.26.5
KDE Frameworks Version: 5.102.0
Qt Version: 5.15.8

ADDITIONAL INFORMATION

Comment 1 Vlad Zahorodnii 2023-02-07 08:51:15 UTC

root cause same as in bug 444176

*** This bug has been marked as a duplicate of bug 444176 ***

Comment 2 Nate Graham 2023-02-07 18:34:33 UTC

Also, the modifier key for this is now Meta by default, not Alt. the Alt key suffered from various issues, including this one. So I would recommend just using the Meta key. If you didn't get that settings change automatically because you had previously customized it, you can set it manually at System Settings > Window Management > Window Actions tab.