Bug 489905

Summary: Maximized titlebars have a seam under them with 120% or 110% screen scaling
Product: [Plasma] kwin Reporter: me
Component: decorationsAssignee: KWin default assignee <kwin-bugs-null>
Status: RESOLVED DUPLICATE    
Severity: normal CC: xaver.hugl
Priority: NOR    
Version First Reported In: 6.1.1   
Target Milestone: ---   
Platform: Fedora RPMs   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:
Attachments: Screenshots with some of these seams on a bunch of apps.

Description me 2024-07-08 08:32:43 UTC
Created attachment 171472 [details]
Screenshots with some of these seams on a bunch of apps.

SUMMARY
I'm on a 14 inch laptop with a 1080p display, so I set the scaling to 120% to see things better. However, this causes most applications to show a 1px tall seam between the window and the titlebar when the window is maximized. This also happens when you set the scale to 110%, but not any other scaling above 100%.

STEPS TO REPRODUCE
1. Set screen scaling to 120% or 110%.
2. Maximize any window.

OBSERVED RESULT
There's a seam under the titlebar of maximized windows.

EXPECTED RESULT
There should be no seam.

SOFTWARE/OS VERSIONS
Linux: Fedora KDE 40 
(available in About System)
KDE Plasma Version: 6.1.1
KDE Frameworks Version: 6.3.0
Qt Version: 6.7.2

ADDITIONAL INFORMATION
Comment 1 Zamundaaa 2024-07-08 11:16:25 UTC

*** This bug has been marked as a duplicate of bug 483338 ***