Bug 467658

Summary: Some chromium/electron apps have gaps (a few pixels wide, they don't fill the whole screen) when maximized and using fractional scaling
Product: [Plasma] kwin Reporter: fzjgd8ga
Component: generalAssignee: KWin default assignee <kwin-bugs-null>
Status: RESOLVED DUPLICATE    
Severity: normal CC: kde
Priority: NOR    
Version: unspecified   
Target Milestone: ---   
Platform: Fedora RPMs   
OS: Linux   
Latest Commit: Version Fixed In:
Attachments: Example of this bug with VsCodium

Description fzjgd8ga 2023-03-21 17:58:30 UTC
Created attachment 157499 [details]
Example of this bug with VsCodium

STEPS TO REPRODUCE
1. Set fractional scaling (150% in my case)
2. Open a chromium/electron app (e.g. Brave, Vscodium, Signal)
3. Maximize it (if it isn't already)

OBSERVED RESULT
Window has gaps on the right and at the bottom (see attachment).

EXPECTED RESULT
The window should be maximized with no gaps around it.

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Fedora (KDE spin)
(available in About System)
KDE Plasma Version: 5.27.3
KDE Frameworks Version: 5.104.0
Qt Version: 5.15.8

ADDITIONAL INFORMATION
This only happens on Wayland. (But on xorg, some desktop elements such as taskbar don't scale properly)
Comment 1 David Edmundson 2023-03-25 12:55:20 UTC

*** This bug has been marked as a duplicate of bug 459373 ***