Bug 465945

Summary:	[X11][regression] Global scale doesn't affect GTK widget sizes
Product:	[Plasma] Breeze	Reporter:	Emilio Cobos Álvarez (:emilio) <emilio>
Component:	gtk theme	Assignee:	Plasma Bugs List <plasma-bugs>
Status:	RESOLVED FIXED
Severity:	normal	CC:	agrinev98, nate, nicolas.fella, uhhadd
Priority:	NOR
Version:	unspecified
Target Milestone:	---
Platform:	Other
OS:	Linux
See Also:	https://bugs.kde.org/show_bug.cgi?id=442901
Latest Commit:		Version Fixed In:	5.27.1
Sentry Crash Report:
Attachments:	screenshot of tiny window icons

Description Emilio Cobos Álvarez (:emilio) 2023-02-17 16:25:57 UTC

Created attachment 156380 [details]
screenshot of tiny window icons

SUMMARY
***
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***


STEPS TO REPRODUCE
1. Start Plasma 5.27 on X11
2. Set global scale to 200%
3. Use any GTK application like gtk4-demo

OBSERVED RESULT

Tiny icons and scrollbars (see screenshot).

EXPECTED RESULT

Icons and scrollbars are scaled properly. This is a regression from 5.26. It seems the scale is now communicated via the text scale, but not the window scale.

SOFTWARE/OS VERSIONS
KDE Plasma Version: 5.27.0
KDE Frameworks Version: 5.103.0
Qt Version: 5.15.8

ADDITIONAL INFORMATION

Comment 1 Nicolas Fella 2023-02-17 16:52:52 UTC


*** This bug has been marked as a duplicate of bug 465733 ***

Comment 2 Emilio Cobos Álvarez (:emilio) 2023-02-17 17:41:58 UTC

Isn't the duplicate wayland-specific? This happens on a plain x11 session

Comment 3 Emilio Cobos Álvarez (:emilio) 2023-02-18 01:21:22 UTC

I don't think this is bug 442901 since that was specific to wayland. What happens here is that GTK has two scales, the "window" scale, and the "font" scale.

Before, the global scale used to be floored, and given as window scale, and the rest was passed as font scale. Now it seems it's unconditionally passed as font scale, which seems broken because it affects text, but not the size of other widgets like scrollbars or window buttons.

Comment 4 Nate Graham 2023-02-21 23:39:46 UTC

This is fixed in Plasma 5.27.1