Bug 509347

Summary:	With large oxygen buttons: Maximized window, after full-screen (f11) and restore (f11) to maximized has buttons in titlebar clipped
Product:	[Plasma] kwin	Reporter:	shamim.islam <shamim.islam>
Component:	effects-window-management	Assignee:	KWin default assignee <kwin-bugs-null>
Status:	CONFIRMED ---
Severity:	normal	CC:	kdedev, linux
Priority:	NOR	Keywords:	X11-only
Version First Reported In:	6.4.4
Target Milestone:	---
Platform:	Fedora RPMs
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:
Attachments:	Window Decoration/Buttons clipped at top of screen attachment-3455815-0.html

Description shamim.islam@gmail.com 2025-09-10 14:21:15 UTC

Created attachment 184867 [details]
Window Decoration/Buttons clipped at top of screen

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SUMMARY


STEPS TO REPRODUCE
1. Run plasma-x11 with large oxygen buttons (not sure what other widgets cause the problem)
2. Open any application window and maximize the screen
3. Press F11 to go fullscreen and again to restore to maximized

OBSERVED RESULT
Window management buttons are half above the visible screen and titlebar

EXPECTED RESULT
Window management buttons should be fully visible.

SOFTWARE/OS VERSIONS
Windows: NA
macOS: NA
(available in the Info Center app, or by running `kinfo` in a terminal window)
Linux/KDE Plasma: 6.4.4
KDE Plasma Version: 6.4.4
KDE Frameworks Version: ??
Qt Version: 6

ADDITIONAL INFORMATION
Has been happening for months.

Comment 1 Bernd Steinhauser 2025-10-23 11:25:48 UTC

Can confirm this on Plasma Wayland 6.5.0. I think it started with 6.3 or 6.4.
Un-maximizing Windows and then maximizing them again fixes it temporarily.

With breeze and plastik, it works fine.

Comment 2 TraceyC 2025-12-31 20:45:43 UTC

I can reproduce this on Plasma built from git-master

Downgrading from major to normal since there's an easy workaround

Comment 3 TraceyC 2025-12-31 20:46:34 UTC

This also affects Wayland

Comment 4 shamim.islam@gmail.com 2025-12-31 20:50:28 UTC

Created attachment 188119 [details]
attachment-3455815-0.html

What's the easy workaround? The tooltip prevents clicking the buttons when
clipped.

On Wed, Dec 31, 2025 at 3:45 PM TraceyC <bugzilla_noreply@kde.org> wrote:

> https://bugs.kde.org/show_bug.cgi?id=509347
>
> TraceyC <kdedev@tlcnet.info> changed:
>
>            What    |Removed                     |Added
>
> ----------------------------------------------------------------------------
>            Keywords|                            |X11-only
>              Status|REPORTED                    |CONFIRMED
>                  CC|                            |kdedev@tlcnet.info
>            Severity|major                       |normal
>      Ever confirmed|0                           |1
>             Summary|Maximized window, after     |On x11 with large oxygen
>                    |full-screen (f11) and       |buttons: Maximized window,
>                    |restore (f11) to maximized  |after full-screen (f11)
> and
>                    |has buttons in titlebar     |restore (f11) to maximized
>                    |clipped.                    |has buttons in titlebar
>                    |                            |clipped
>
> --- Comment #2 from TraceyC <kdedev@tlcnet.info> ---
> I can reproduce this on Plasma built from git-master
>
> Downgrading from major to normal since there's an easy workaround
>
> --
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> You reported the bug.