https://bugs.kde.org/show_bug.cgi?id=506530

            Bug ID: 506530
           Summary: Freesync flicker caused by borderless window video
                    game
    Classification: Plasma
           Product: plasmashell
      Version First master
       Reported In:
          Platform: Other
                OS: iOS
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: Activities in general
          Assignee: [email protected]
          Reporter: [email protected]
                CC: [email protected]
  Target Milestone: 1.0

SUMMARY
I am new to Linux, using the latest Bazzite OS. I’ve been playing final fantasy
16 with adaptive sync set to auto and the game running in borderless window.
Consistently when i would close the game and return to desktop, the frame rates
would be all over the place resulting in freesync flicker. Disabling and
reenabling adaptive sync would stop. So far the “permanent “ fix is to run the
game in exclusive fullscreen mode. As expected, when closing the game, the
desktop refresh rate is pinned to 144hz rather than wildly fluctuating. 

STEPS TO REPRODUCE
1. Regularly playing the game in borderless window causes the issue upon
closing
2. Disabling and enabling adaptive sync temporarily stops
3. 

OBSERVED RESULT
Extreme frame rate fluctuations and brightness flicker

EXPECTED RESULT
Stable frame rates on desktop with no brightness flicker 

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
(available in the Info Center app, or by running `kinfo` in a terminal window)
Linux/KDE Plasma: Bazzite 42
KDE Plasma Version: 6.4.0
KDE Frameworks Version: 6.15.0
Qt Version: 6.9.1

ADDITIONAL INFORMATION
Graphics platform is Wayland. General system specs: 5700X3D, Asrock B350,
9070XT, 32Gbs RAM, MSI 1440p 144hz monitor connected with club 3D DisplayPort
cable.

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