Bug 382902

Summary:	KDE showing afterimages on text lines after applying 1.3x scale
Product:	[Applications] kate	Reporter:	t123yh
Component:	part	Assignee:	KWrite Developers <kwrite-bugs-null>
Status:	RESOLVED DUPLICATE
Severity:	normal	CC:	christoph, lukas.hetzenecker, rthomsen6
Priority:	NOR
Version:	unspecified
Target Milestone:	---
Platform:	Manjaro
OS:	Linux
See Also:	https://bugs.kde.org/show_bug.cgi?id=379727
Latest Commit:		Version Fixed In:
Sentry Crash Report:

Description t123yh 2017-07-29 14:28:30 UTC

Sorry, I don't know the name of the behavior but I've recorded two videos to show you the problem:

https://www.youtube.com/watch?v=rK21rQ8Wfo4
https://www.youtube.com/watch?v=CGzDOxKh2YI

Note the random wires between two lines. The problem both exists on Konsole and Ark.

I'm using a Dell Inspiron 7347 with an Intel i5-4210U. The operation system is Manjaro Linux, alone with KDE 5.10.4 and KDE framework 5.36.0 . The display is 1.3x scaled in the System Settings.

I don't know where the problem lies. Please move this to the correct section.

Comment 1 Christoph Feck 2017-07-31 12:07:03 UTC

Konsole is bug 373232. Reassigning to ark developers for inspection.

Comment 2 t123yh 2017-07-31 12:52:20 UTC

I think this is not an application-specific bug, but a global bug somewhere related to rendering. With different scaling and DPI settings, similar things happened even on System Settings and various apps.

Comment 3 Christoph Feck 2017-07-31 14:10:34 UTC

The referenced Konsole bug is specific to Konsole. If this happens with many applications, it could also be a Qt bug, but it has be investigated individually. I suggest to report it for each application you see it.

Comment 4 Elvis Angelaccio 2017-07-31 14:14:27 UTC

What I see in the second video is actually the katepart.

Comment 5 Christoph Cullmann 2017-12-20 20:29:48 UTC

Yeap, we have there some rendering issues :/

*** This bug has been marked as a duplicate of bug 379727 ***