Bug 412118

Summary:	After I enable fractional display scaling on Wayland, Plasma and Qt5 apps already running become blurry until they are restarted
Product:	[Plasma] KScreen	Reporter:	Patrick Silva <bugseforuns>
Component:	common	Assignee:	kscreen-bugs-null <kscreen-bugs-null>
Status:	RESOLVED DUPLICATE
Severity:	normal	CC:	claudius.ellsel, nate, null
Priority:	NOR	Keywords:	wayland-only
Version First Reported In:	5.20.90
Target Milestone:	---
Platform:	Arch Linux
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description Patrick Silva 2019-09-20 12:50:02 UTC

STEPS TO REPRODUCE
1. start Wayland session
2. open any app that runs natively on Wayland, let's say Dolphin
3. search for "display configuration" KCM in the apps launcher and open it
4.. change display scale factor from 1 to 1.2

OBSERVED RESULT
Dolphin and Plasma look blurry. 
Dolphin is not blurry after you restart it and Plasma is not blurry after relogin.

EXPECTED RESULT
Apps and Plasma are crisp immediately after fractional display scaling to be enabled.

SOFTWARE/OS VERSIONS
Operating System: Arch Linux 
KDE Plasma Version: 5.16.90
KDE Frameworks Version: 5.62.0
Qt Version: 5.13.1

Comment 1 Patrick Silva 2020-05-15 14:17:19 UTC

Operating System: Arch Linux 
KDE Plasma Version: 5.18.90
KDE Frameworks Version: 5.70.0
Qt Version: 5.15.0 rc2

Comment 2 Claudius Ellsel 2020-08-10 11:06:10 UTC

Marking as confirmed. I think I experienced exactly the same behavior, also noticeable looking at the mouse cursor.

Comment 3 Nate Graham 2021-06-01 16:15:57 UTC


*** This bug has been marked as a duplicate of bug 433416 ***