[Wayland-bugs] [Bug 746723] New: testxinerama fails under wayland

[gtk+ (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=746723

            Bug ID: 746723
           Summary: testxinerama fails under wayland
    Classification: Platform
           Product: gtk+
           Version: 3.16.x
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: Normal
         Component: Backend: Wayland
          Assignee: gtk-bugs at gtk.org
          Reporter: airlied at gmail.com
        QA Contact: gtk-bugs at gtk.org
                CC: rob at robster.org.uk, wayland-bugs at lists.freedesktop.org
     GNOME version: ---

I was playing with the gtk+ wayland mode handling and tried to use testxinerama
under wayland, and it fails badly.

one arguable bug in gtk+, but more likely lots in the test:

the test calls gdk_screen_get_monitor_geometry before we've processed all the
wayland events to configure outputs. The tests relies on this to move the
windows to each monitor, and any monitor reconfiguration later fails if this
fails.

This leads to the test getting 0x0 at 0,0 for all the monitors.

When monitor reconfiguration happens (when wayland events get processed),
because all three windows are on the same screen from the first bug, it uses
gdk_screen_get_monitor_at_window and updates all 3 monitors with the same info.

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