Bug 364985

Summary:	KCM standalone window gets corrupted on minimize/maximize
Product:	[Plasma] kde-cli-tools	Reporter:	Maxim Egorushkin <maxim.yegorushkin>
Component:	general	Assignee:	Aleix Pol <aleixpol>
Status:	CONFIRMED ---
Severity:	normal	CC:	11tete11, bugseforuns, dequire, wazhai
Priority:	NOR
Version:	5.12.4
Target Milestone:	---
Platform:	Fedora RPMs
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:
Attachments:	Font manager just started, correct graphics. Font manager after having been minimized/unminized a few times.

Description Maxim Egorushkin 2016-07-01 19:21:37 UTC

Font Management application window contents get corrupted after minimize/unminimize through the task manager panel widget. 

Reproducible: Always

Steps to Reproduce:
1. Start the Font Management application.
2. Change its window size, make it occupy a half of the screen by snapping to the left or right.
3. Using the task manager click on the application title to minimize/unminimize 1-2 times.

Actual Results:  
Font Management application window contents get corrupted. 

Expected Results:  
Font Management application window contents display normally.

Other applications like Google Chrome, Konsole, Emacs do not exhibit the same issue.

Comment 1 Maxim Egorushkin 2016-07-06 09:24:24 UTC

Created attachment 99879 [details]
Font manager just started, correct graphics.

Comment 2 Maxim Egorushkin 2016-07-06 09:25:15 UTC

Created attachment 99880 [details]
Font manager after having been minimized/unminized a few times.

Comment 3 Maxim Egorushkin 2016-07-06 09:27:21 UTC

This issue also reproduces on a different workstation with Fedora 22 and plasma-desktop-5.5.5-5.fc22.x86_64.

Comment 4 James Cain 2018-02-22 21:14:03 UTC

Still an issue today: That is, works fine within System Settings, but if Font Management is run from application launcher then minimized / maximized it will become corrupted and need to be forced to close. See attachment for .gif video showing problem.

- Plasma 5.12.2
- Applications 5.43.0
- Qt 5.9.3

AMD open source graphics / Mesa 17.3.2

Comment 5 James Cain 2018-02-22 21:17:37 UTC

Link to animated GIF showing problem (download file if animation is not showing in browser). I had to publish a link since the gif file exceeded the upload file size.

https://my.pcloud.com/publink/show?code=XZm3cR7ZUqUwsXIxa04gJzUDQkgRYREXSeH7

Comment 6 Patrick Silva 2018-02-22 22:01:59 UTC

*** Bug 385076 has been marked as a duplicate of this bug. ***

Comment 7 wazhai 2018-04-14 14:30:31 UTC

As noted in duplicate Bug 385076, this affects every standalone KCM window and is a bug in kcmshell.

I can reproduce it with:
systemsettings 5.12.4
KDE Frameworks 5.44.0
Qt 5.9.4 (built against 5.9.4)

(This is my first attempt at triaging, so please forgive me if I made a mistake.)

Comment 8 wazhai 2018-04-14 14:55:08 UTC

*** Bug 344199 has been marked as a duplicate of this bug. ***

Comment 9 wazhai 2023-02-07 07:35:19 UTC

Is this still a bug? As I understand it, it's no longer possible to open a stand-alone KCM, it always opens with systemsettings