https://bugs.kde.org/show_bug.cgi?id=356882

            Bug ID: 356882
           Summary: No compositing with Mesa 11.1.0 (EGL 1.5) and
                    Plasma/KWin 5.5.1 when using EGL OpenGL interface
           Product: kwin
           Version: 5.5.1
          Platform: Gentoo Packages
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: egl
          Assignee: kwin-bugs-n...@kde.org
          Reporter: devuran...@gmx.net

In {Systemsettings > Display And Monitor > Compositor} I selected EGL as the
OpenGL interface.
I just updated to Mesa 11.1.0 and Plasma 5.5.1. Now I don't get any
compositing:
```
# kwin_x11 --replace
QXcbConnection: XCB error: 3 (BadWindow), sequence: 172, resource id: 37748742,
major code: 20 (GetProperty), minor code: 0
kwin_core: Failed to initialize compositing, compositing disabled
QXcbConnection: XCB error: 3 (BadWindow), sequence: 1661, resource id: 111,
major code: 3 (GetWindowAttributes), minor code: 0
```

When I switch to the GLX OpenGL interface in {Systemsettings > Display And
Monitor > Compositor}, I see this output instead:
```
# kwin_x11 --replace
QXcbConnection: XCB error: 3 (BadWindow), sequence: 172, resource id: 20971526,
major code: 20 (GetProperty), minor code: 0
OpenGL vendor string:                   X.Org
OpenGL renderer string:                 Gallium 0.4 on AMD KAVERI (DRM 2.43.0,
LLVM 3.7.0)
OpenGL version string:                  4.1 (Core Profile) Mesa 11.1.0
OpenGL shading language version string: 4.10
Driver:                                 Unknown
GPU class:                              Unknown
OpenGL version:                         4.1
GLSL version:                           4.10
Mesa version:                           11.1
X server version:                       1.17.4
Linux kernel version:                   4.3.2
Requires strict binding:                yes
GLSL shaders:                           yes
Texture NPOT support:                   yes
Virtual Machine:                        no
QMetaProperty::read: Unable to handle unregistered datatype
'KWayland::Server::SurfaceInterface*' for property 'KWin::Toplevel::surface'
libkwinglutils: Update of color profiles failed
```

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