Bug 1213995

Summary:	Tooltip corruption on Qt apps
Product:	[openSUSE] openSUSE Distribution	Reporter:	Ricardo Gabriel Berlasso <rgb.mldc>
Component:	KDE Applications	Assignee:	E-Mail List <opensuse-kde-bugs>
Status:	RESOLVED UPSTREAM	QA Contact:	E-mail List <qa-bugs>
Severity:	Normal
Priority:	P5 - None
Version:	Leap 15.5
Target Milestone:	---
Hardware:	Other
OS:	openSUSE Leap 15.5
Whiteboard:
Found By:	---	Services Priority:
Business Priority:		Blocker:	---
Marketing QA Status:	---	IT Deployment:	---
Attachments:	Screen recording of Kate showing the problem Screenshot showing the problem

Description Ricardo Gabriel Berlasso 2023-08-04 15:24:33 UTC

Created attachment 868634 [details]
Screen recording of Kate showing the problem

Since upgrading to Leap 15.5 (didn't happen on 15.4), I can see graphical glitches on tooltips for pure KDE/Qt applications such a Kate or RSS Guard, or applications that use the Qt toolkit for drawing the Ui such as LibreOffice (the problem does not happen if selecting the GTK3 interface).

This problem happens when moving the mouse pointer from one button to another. In the case of Kate, for example, the tooltip will try to redraw, but fail. On other apps such as LyX it will redraw quickly so the glitches are less noticeable. 

Usually moving away and back the mouse pointer will successfully redraw the tooltip, but then at the next move the following tooltip will fail.

I'm using the X11 session on Plasma 5.27.4.

On the Spanish forums another user reports similar problems with Tumbleweed

https://forums.opensuse.org/t/errores-graficos-en-los-tooltips/168171/3

Comment 1 Ricardo Gabriel Berlasso 2023-08-04 15:27:17 UTC

Created attachment 868635 [details]
Screenshot showing the problem

On the attached file you can see a few screenshots presenting the problem on Kate, RSS Guard and LibreOffice with the kd5 UI.

Comment 2 Ricardo Gabriel Berlasso 2023-08-24 20:01:22 UTC

I found the correct bug report from KDE project

Morphing Popups effect: glitch when the size of a tooltip is reduced 

https://bugs.kde.org/show_bug.cgi?id=416048