Bug 440849

Summary:	Titlebar disappears in certain circumstances
Product:	[Plasma] kwin	Reporter:	Troy Dawson <tdawson>
Component:	aurorae	Assignee:	KWin default assignee <kwin-bugs-null>
Status:	RESOLVED UNMAINTAINED
Severity:	normal	CC:	nate, rdieter
Priority:	NOR
Version First Reported In:	5.22.4
Target Milestone:	---
Platform:	Fedora RPMs
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:
Attachments:	Proper titlebar Titlebar missing

Description Troy Dawson 2021-08-10 21:07:14 UTC

SUMMARY
The titelbar disappears when certain things happens.  It is recoverable but inconvenient.

STEPS TO REPRODUCE
1. Log into the desktop, picking Plasma(Wayland)
2. Change your window decorations to Plastik (System-Settings-> Appearance -> Window Decorations -> Plastik)
3. Start a program.  For this example open Dolphin (graphical file manager).
4. Maximize the window. (Click on upper right button, just left of the X button)
5. Completely close the program. (Click the upper X)
6. Start the program.

OBSERVED RESULT
The window comes up maximized, but the top titlebar is gone.

EXPECTED RESULT
The window comes up maximized, but the top titlebar is there.

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Fedora 34
KDE Plasma Version: 5.22.4
KDE Frameworks Version: 5.83.0
Qt Version: 5.15.2

ADDITIONAL INFORMATION
This doesn't happen in X11.
This doesn't happen with the breeze window decorations.
It was originally observed in plasma/kwin 5.21.3.
I've been able to reproduce this in a fresh KDE install, as well as starting with a fedora workstation (with gnome installed) and then installing KDE Plasma Dekstop.

Comment 1 Troy Dawson 2021-08-10 21:09:17 UTC

Created attachment 140643 [details]
Proper titlebar

Comment 2 Troy Dawson 2021-08-10 21:09:42 UTC

Created attachment 140644 [details]
Titlebar missing

Comment 3 Nate Graham 2021-08-11 14:53:26 UTC

Is it invisible but still interactive or just gone? If it's gone, does this mean that clicks in the area where it should be actually get passed down to whatever is underneath the titlebar-less window?

Comment 4 Troy Dawson 2021-08-11 15:12:19 UTC

It is fairly interactive.   You can right click on it, and get the normal right click selections.  If I click around I can eventually hit some buttons, but they seems to be out of place.  But it does seem to be "invisible" versus "gone".

Comment 5 Nate Graham 2021-08-11 15:20:00 UTC

Interesting, thanks.

Comment 6 David Edmundson 2023-09-06 10:39:10 UTC

This bug was reported against an outdated version of KWin. We have made many changes since the. 
If the issue persists in newer versions can you reopen the bug report updating the version number.