Bug 502281

Summary:	When using fractional scaling, the Annotate window interface is scaled too large
Product:	[Applications] gwenview	Reporter:	masaq <masaq.dev>
Component:	general	Assignee:	Gwenview Bugs <gwenview-bugs-null>
Status:	RESOLVED DUPLICATE
Severity:	normal	CC:	john.kizer, m.kurz, madness742, realkpavel
Priority:	NOR
Version First Reported In:	24.12.3
Target Milestone:	---
Platform:	Manjaro
OS:	Linux
See Also:	https://bugs.kde.org/show_bug.cgi?id=485066
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:
Attachments:	screenshot

Description masaq 2025-04-01 13:49:13 UTC

Created attachment 179910 [details]
screenshot

SUMMARY

With fractional scaling on Wayland, the controls and content do not obey the scaling setting. Their scale factor is instead rounded up to the nearest integer. 

STEPS TO REPRODUCE
1. Have some fractional scale applied in the Wayland session.
2. Open an image in gwenview
3. Open the annotate window

OBSERVED RESULT
The annotate window and the image content are scaled larger than they're supposed to.

EXPECTED RESULT
The annotate window and the image content are scaled according to the system settings.

SOFTWARE/OS VERSIONS
Operating System: Manjaro Linux 
KDE Plasma Version: 6.3.3
KDE Frameworks Version: 6.12.0
Qt Version: 6.8.2
Kernel Version: 6.12.20-2-MANJARO (64-bit)
Graphics Platform: Wayland
Processors: 16 × AMD Ryzen 7 7840HS w/ Radeon 780M Graphics
Memory: 30,7 GiB of RAM
Graphics Processor: AMD Radeon 780M
Manufacturer: Framework
Product Name: Laptop 16 (AMD Ryzen 7040 Series)
System Version: AG

ADDITIONAL INFORMATION
Possibly related to https://bugs.kde.org/show_bug.cgi?id=485066

Comment 1 John Kizer 2025-04-10 19:04:50 UTC

Hi - I can reproduce this on my Fedora KDE 41 device. Thanks!

Comment 2 m.kurz 2025-05-20 18:33:06 UTC

Can reproduce also.

Operating System: Arch Linux ARM 
KDE Plasma Version: 6.3.5
KDE Frameworks Version: 6.14.0
Qt Version: 6.9.0
Kernel Version: 6.14.6-asahi-1-1-ARCH (64-bit)
Graphics Platform: Wayland
Processors: 8 × Apple Firestorm (M1 Pro), 2 × Apple Icestorm (M1 Pro)
Memory: 31,0 GiB of RAM
Graphics Processor 1: Apple M1 Pro
Graphics Processor 2: llvmpipe
Product Name: Apple MacBook Pro (14-inch, M1 Pro, 2021)

Comment 3 Kat Pavlu 2025-06-10 15:26:45 UTC

The library providing this functionality appears to be unmaintained.

*** This bug has been marked as a duplicate of bug 479215 ***