Bug 465853

Summary:	Since 5.27 some gtk apps under xwayland have weird scale
Product:	[Plasma] kwin	Reporter:	gudvinr+kde
Component:	general	Assignee:	KWin default assignee <kwin-bugs-null>
Status:	RESOLVED DUPLICATE
Severity:	normal	CC:	kde
Priority:	NOR
Version First Reported In:	5.27.0
Target Milestone:	---
Platform:	Arch Linux
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:
Attachments:	no GDK_SCALE GDK_SCALE=

Description gudvinr+kde 2023-02-16 16:54:30 UTC

SUMMARY

I've seen this behavior only in Prusa Slicer so far, but before I upgrade to 5.27 today (and also to kf 5.103), it now doesn't scale.

If I run it with GDK_SCALE set, it starts normally as I usually see it. It doesn't matter if I set "GDK_SCALE" or "GDK_SCALE=1", result is the same.
I didn't use any env variables before so I think there could be some regression.

SOFTWARE/OS VERSIONS
Operating System: Arch Linux 
KDE Plasma Version: 5.27.0
KDE Frameworks Version: 5.103.0
Qt Version: 5.15.8
Kernel Version: 6.1.12-zen1-1-zen (64-bit)
Graphics Platform: Wayland
Graphics Processor: AMD Radeon RX Vega M GL Graphics

ADDITIONAL INFORMATION
Prusa Slicer is wxgtk app, I have wxgtk 3.2 and it uses gtk3 backend.

Comment 1 gudvinr+kde 2023-02-16 16:54:59 UTC

Created attachment 156313 [details]
no GDK_SCALE

Comment 2 gudvinr+kde 2023-02-16 16:55:16 UTC

Created attachment 156314 [details]
GDK_SCALE=

Comment 3 gudvinr+kde 2023-02-16 16:59:44 UTC

Just as I filed this issue, I opened discord and it has same behaviour. Interface is tiny and if I launch discord with GDK_SCALE= discord, it starts having normal scale.

So I suspect it isn't wxgtk nor prusa-slicer issue.

Comment 4 David Edmundson 2023-02-16 17:19:23 UTC


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

Comment 5 David Edmundson 2023-02-16 17:23:19 UTC

Just to clarify "doesn't scale" == looks really small on your high res screen?

Comment 6 gudvinr+kde 2023-02-16 17:24:09 UTC

(In reply to David Edmundson from comment #5)
> Just to clarify "doesn't scale" == looks really small on your high res
> screen?

Yeah. Maybe that was wrong wording here, but yes.