Bug 463657

Summary:	Applications are blurry after setting screen scaling (until next restart)
Product:	[Plasma] KScreen	Reporter:	Ralf Jung <post>
Component:	common	Assignee:	kscreen-bugs-null <kscreen-bugs-null>
Status:	RESOLVED UPSTREAM
Severity:	normal	CC:	nate
Priority:	NOR
Version First Reported In:	5.26.4
Target Milestone:	---
Platform:	Other
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description Ralf Jung 2022-12-31 09:15:14 UTC

SUMMARY
This is probably not a KScreen bug, but it affects all KDE applications so I am not sure where else to report it. I hope the devs know the right product/component for this. :)  I also probably used the wrong keywords when searching since I assume this has already been reported?


STEPS TO REPRODUCE
1. Have some KDE applications running
2. Change screen scaling to a different value

OBSERVED RESULT
The applications adjust their scaling in a way that is very blury, it's hard to even properly read text.
After logging out and back in, everything is crisp.

EXPECTED RESULT
Things should scale properly and crisply immediately. Having to restart all my applications is a big disruption of the work I am trying to get done and should not be necessary.

SOFTWARE/OS VERSIONS
Operating System: Debian GNU/Linux
KDE Plasma Version: 5.26.4
KDE Frameworks Version: 5.101.0
Qt Version: 5.15.7
Kernel Version: 6.0.0-6-amd64 (64-bit)
Graphics Platform: Wayland
Processors: 8 × Intel® Xeon® CPU E3-1505M v5 @ 2.80GHz
Memory: 31,2 GiB of RAM
Graphics Processor: Mesa Intel® HD Graphics P530
Manufacturer: LENOVO
Product Name: 20ENCTO1WW
System Version: ThinkPad P50

Comment 1 Nate Graham 2023-01-06 21:02:31 UTC

It's actually a Qt bug that's already fixed in Qt 6. Unfortunately the change was not backportable to our Qt 5 patch collection.