[Wayland-bugs] [Bug 78585] New: multiple monitor fullscreen images incorrect position/scale

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=78585

          Priority: medium
            Bug ID: 78585
          Assignee: wayland-bugs at lists.freedesktop.org
           Summary: multiple monitor fullscreen images incorrect
                    position/scale
          Severity: normal
    Classification: Unclassified
                OS: All
          Reporter: rqsmith at gmail.com
          Hardware: Other
            Status: NEW
           Version: unspecified
         Component: weston
           Product: Wayland

I observed this behavior on the trunk version of weston (pre 1.5 release) using
the game SuperMeatBoy with both libSDL 2.0.2 and libSDL2 trunk.  I was able to
duplicate this on the r600 driver with the drm backend and the X11 backend.  I
only saw this behavior with two monitors.

The game goes into fullscreen mode after launching and appears to run at my
native resolution of 1080p on the first monitor.  I reconfigure the game for
720p without exiting and the image shrinks down to the appropriate 1:1 size on
the first monitor with black borders around it.  It does not appear centered.

When the game is exited with this new settings and re-opened the game again
goes fullscreen but now the image is scale up with the black borders around it
again and it spans across to the other monitor.  On the X11 backend after I
move the weston compositor window the application shrinks down but the weston
menu bar at the top of the screen is then visible.  The image is still off
center.  On the drm backend the image continues displayed at the wrong
scale/position until the game is exited.

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