Bug 482803 - Huge delay when maximizing / fullscreening a window
Summary: Huge delay when maximizing / fullscreening a window
Status: RESOLVED DUPLICATE of bug 467283
Alias: None
Product: kwin
Classification: Plasma
Component: wayland-generic (show other bugs)
Version: 6.0.0
Platform: NixOS Linux
: NOR normal
Target Milestone: ---
Assignee: KWin default assignee
URL:
Keywords: qt6
Depends on:
Blocks:
 
Reported: 2024-03-08 02:11 UTC by arcinthesky
Modified: 2024-03-08 23:42 UTC (History)
1 user (show)

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Description arcinthesky 2024-03-08 02:11:00 UTC 
SUMMARY
When toggling maximize / fullscreen for a window (either by using the Kwin shortcuts or clicking the maximize window button on the Window Decoration), there's a huge lag.

This happens in both 6.0.0 and also in 6.0.1.

STEPS TO REPRODUCE
1.  Press the Kwin Maximize Window or Full Screen shortcut
2.  Huge delay when un-maximizing or using the mouse to drag the window so that it un-maximize

OBSERVED RESULT
Huge lag when toggling maximize or full screen -> unmaximize / un-full screen.

EXPECTED RESULT
Should be smooth as butter. I am using an AMD GPU (RX 6800 XT)

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: NixOS  24.05 - Unstable
KDE Plasma Version: 6.0.0 / 6.0.1
KDE Frameworks Version: 6.0.0
Qt Version: 6.6.2
Comment 1 arcinthesky 2024-03-08 04:45:01 UTC 
Okay I figured how to reproduce this. This lag is perceived when Window Decorations theme is NOT using Breeze. When using Breeze, it's smooth. Any other theme has huge stuttering. 

For example: Catppuccin Frappe Classic

I also tried other themes and have the same issue.
Comment 2 Nate Graham 2024-03-08 23:42:10 UTC 

*** This bug has been marked as a duplicate of bug 467283 ***