[Mesa-dev] [Bug 105376] es2gears_wayland reports 120 fps while drawing at 60 fps

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=105376

            Bug ID: 105376
           Summary: es2gears_wayland reports 120 fps while drawing at 60
                    fps
           Product: Mesa
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Demos
          Assignee: mesa-dev at lists.freedesktop.org
          Reporter: bugs at linkmauve.fr
        QA Contact: mesa-dev at lists.freedesktop.org

es2gears_wayland is requesting two frame callbacks per frame, and then
reporting a framerate double of what it is actually drawing, see this log:

[1648215.456]  -> wl_surface at 6.frame(new id wl_callback at 11)
[1648215.507]  -> wl_surface at 6.frame(new id wl_callback at 12)
[1648215.552]  -> wl_surface at 6.attach(wl_buffer at 14, 0, 0)  
[1648215.577]  -> wl_surface at 6.damage(0, 0, 2147483647, 2147483647)
[1648215.654]  -> wl_surface at 6.commit()                            
[1648226.261] wl_display at 1.delete_id(11)
[1648226.318] wl_display at 1.delete_id(12)
[1648226.345] wl_callback at 11.done(1097662536)
[1648226.368] wl_buffer at 9.release()          
[1648226.378] wl_callback at 12.done(1097662536)
[1648227.256]  -> wl_surface at 6.frame(new id wl_callback at 12)
[1648227.327]  -> wl_surface at 6.frame(new id wl_callback at 11)
[1648227.345]  -> wl_surface at 6.attach(wl_buffer at 9, 0, 0)   
[1648227.373]  -> wl_surface at 6.damage(0, 0, 2147483647, 2147483647)
[1648227.473]  -> wl_surface at 6.commit()                            
[1648247.237] wl_display at 1.delete_id(12)
[1648247.288] wl_display at 1.delete_id(11)
[1648247.309] wl_callback at 12.done(1097662553)
[1648247.341] wl_buffer at 14.release()         
[1648247.356] wl_callback at 11.done(1097662553)

This is apparently caused by the fix for bug 101814, see also
https://gitlab.gnome.org/GNOME/mutter/issues/55

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