Bug 446494

Summary: When Minecraft launches, the window is transparent and other windows show through
Product: [Plasma] kwin Reporter: evanmohr22
Component: generalAssignee: KWin default assignee <kwin-bugs-null>
Status: RESOLVED UNMAINTAINED    
Severity: normal CC: nate
Priority: NOR    
Version First Reported In: 5.23.3   
Target Milestone: ---   
Platform: Arch Linux   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description evanmohr22 2021-12-04 23:43:08 UTC 
SUMMARY
***
When Minecraft initially launches, it opens up as a non-fullscreen window. During this time, the window makes an "imprint" of what's behind it and displays it. It sticks around, even after moving the window, until the game enters fullscreen.

Video of the issue: https://youtu.be/ZOL2EjBSwio
***


STEPS TO REPRODUCE
1. Position an easily identifiable window near the center of your screen.
2. Launch Minecraft

OBSERVED RESULT
The Minecraft window is transparent and windows that should be obscured are visible through it.

EXPECTED RESULT
The Minecraft window would start out as black instead of being transparent until it then transition into the red Mojang logo.

SOFTWARE/OS VERSIONS
Linux: 5.15.6
KDE Plasma Version: 5.23.4
KDE Frameworks Version: 5.88.0
Qt Version: 5.15.2

ADDITIONAL INFORMATION
Nvidia driver 495.44 on X11
Comment 1 David Edmundson 2023-09-06 10:39:14 UTC 
This bug was reported against an outdated version of KWin. We have made many changes since the. 
If the issue persists in newer versions can you reopen the bug report updating the version number.