Bug 420110

Summary:	Scrollwheel does not work for some non focused GTK app windows
Product:	[Plasma] kwin	Reporter:	postix <postix>
Component:	input	Assignee:	KWin default assignee <kwin-bugs-null>
Status:	RESOLVED DUPLICATE
Severity:	normal	CC:	bugseforuns, nate, postix
Priority:	NOR
Version First Reported In:	5.18.4
Target Milestone:	---
Platform:	Other
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description postix 2020-04-15 11:45:28 UTC

Let's have two apps, a Qt and a GTK app, side by side. 

1) If you select the GTK app and hover the mouse over the Qt app's window, you can use the scrollwheel.
2) If you select the Qt app and hover the mouse over the GTK app's window, it does not work for some GTK apps.


- GTK apps for which it does not work include Xournal, Dino, Lutris
+ GTK apps for which it does work are Firefox and GIMP


Is there something special GTK apps have to implement or does KWin not support all necessary parts of GTK in order to support this feature for all kind of apps?


SOFTWARE/OS VERSIONS
Operating System: Manjaro Linux 
KDE Plasma Version: 5.18.4
KDE Frameworks Version: 5.69.0
Qt Version: 5.14.2
X11

Comment 1 Patrick Silva 2020-04-15 13:38:44 UTC

Possible duplicate of bug 394772.

Comment 2 Nate Graham 2020-04-15 18:12:56 UTC

Yup.

*** This bug has been marked as a duplicate of bug 394772 ***