Bug 462727

Summary: Unreal Editor's fps is 60 until unmaximized and maximized back (Kde wayland)
Product: [Plasma] kwin Reporter: uladzislaukviatko
Component: wayland-genericAssignee: KWin default assignee <kwin-bugs-null>
Status: RESOLVED DOWNSTREAM    
Severity: normal CC: kde, nate
Priority: NOR    
Version First Reported In: 5.26.4   
Target Milestone: ---   
Platform: Fedora RPMs   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description uladzislaukviatko 2022-12-06 23:00:50 UTC 
SUMMARY:
Unreal Editor's fps is 60 until unmaximized and maximized back (Kde wayland)


STEPS TO REPRODUCE:
1. Download Unreal Engine binary from official web page (version 5.1 or 5.0.3)
2. Open any test project (Third person, First person, etc..)
3.Press Alt+3 to turn on unlit mode. (this mode massively reduces load on gpu)
4. Turn on fps meter from drop-down menu icon located in left top corner (Before "Perspective" button)
5. Unmaximize and maximize editor's window.
6.Click play and look at the fps counter.

OBSERVED RESULT:
Unreal Editor's fps is 60 until unmaximized and maximized back

EXPECTED RESULT:
Unreal Editor's fps is not locked to 60 right from the start.

SOFTWARE/OS VERSIONS: 
Linux/KDE Plasma: Fedora 37 (Kde wayland)
KDE Plasma Version: 5.26.4
KDE Frameworks Version: 5.100.0
Qt Version: 5.15.7
Comment 1 David Edmundson 2023-07-06 11:02:45 UTC 
Report to unreal. We are not locking any framerates