https://bugs.kde.org/show_bug.cgi?id=496879

            Bug ID: 496879
           Summary: Windows freeze and fade after wallpaper change
    Classification: Plasma
           Product: kwin
           Version: 6.2.0
          Platform: Other
                OS: Linux
            Status: REPORTED
          Severity: major
          Priority: NOR
         Component: compositing
          Assignee: kwin-bugs-n...@kde.org
          Reporter: trobl...@gmail.com
  Target Milestone: ---

SUMMARY
Right after changing the wallpaper (either manually or, more importantly, by
the slideshow wallpaper option), all windows on the screen freeze for a split
second and a fade effect takes place.
This makes the "slideshow" wallpaper option nearly useless.
I have recorded a video showcasing the issue:
https://www.youtube.com/watch?v=sV9EWZ1B-iw

STEPS TO REPRODUCE
1. Start a game or a video that changes often
2. Change your wallpaper

OBSERVED RESULT
After finishing wallpaper's fade animation, all windows freeze for a split
second

EXPECTED RESULT
Windows don't react at all to the wallpaper change.

SOFTWARE/OS VERSIONS
Operating System: Void 
KDE Plasma Version: 6.2.0
KDE Frameworks Version: 6.8.0
Qt Version: 6.7.2
Kernel Version: 6.11.10_1 (64-bit)
Graphics Platform: X11
Processors: 8 × AMD Ryzen 5 2400G with Radeon Vega Graphics
Memory: 13.6 GiB of RAM
Graphics Processor: NVIDIA GeForce RTX 2060/PCIe/SSE2

ADDITIONAL INFORMATION
- This only happens with KWin compositing enabled.
- This was an issue that is happening again after complete system reinstall.
- This is especially noticeable when playing games, and before pinpointing the
bug I resorted to just disabling KWin.
- If I recall correctly this was an issue also in Plasma 5.
- I am not sure if I have chosen the right component in the report, I'm very
sorry for any trouble

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