Public bug reported:

[ Impact ]

On the affected Ubuntu 24.04 system, fullscreen applications can run at
approximately 37-55 FPS on a 75 Hz display, causing visible stutter.

Mutter: 46.2-1ubuntu0.24.04.16


[ Test Plan ]

1. On an affected Ubuntu 24.04 GNOME Wayland system, configure the display to
   1920x1080 at approximately the panel refresh rate.

2. Restart GDM or log out and back in. Confirm that a new GNOME Shell process
   is running.

3. Run for at least 120 seconds and record every five-second FPS report:

   glxgears -fullscreen

4. Repeat from a new graphical session. Expect sustained periods where the 
framerate
   is approximately the same as the monitor refresh rate.


[ Where problems could occur ]

TBD

[ Other Info ]

** Affects: mutter (Ubuntu)
     Importance: Undecided
         Status: New

** Summary changed:

- [SRU] mutter: fullscreen applications run below the display refresh rate
+ [Draft][SRU] mutter: fullscreen applications run below the display refresh 
rate

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https://bugs.launchpad.net/bugs/2167418

Title:
  [Draft][SRU] mutter: fullscreen applications run below the display
  refresh rate

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