diff --git a/plugins/platforms/wayland/egl_wayland_backend.cpp b/plugins/platforms/wayland/egl_wayland_backend.cpp
index 67532178a..9113a96f3 100644
--- a/plugins/platforms/wayland/egl_wayland_backend.cpp
+++ b/plugins/platforms/wayland/egl_wayland_backend.cpp
@@ -1,410 +1,410 @@
 /********************************************************************
  KWin - the KDE window manager
  This file is part of the KDE project.
 
 Copyright 2019 Roman Gilg <subdiff@gmail.com>
 Copyright 2013 Martin Gräßlin <mgraesslin@kde.org>
 
 This program is free software; you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation; either version 2 of the License, or
 (at your option) any later version.
 
 This program is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.
 
 You should have received a copy of the GNU General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *********************************************************************/
 #define WL_EGL_PLATFORM 1
 
 #include "egl_wayland_backend.h"
 
 #include "wayland_backend.h"
 #include "wayland_output.h"
 
 #include "composite.h"
 #include "logging.h"
 #include "options.h"
 
 #include "wayland_server.h"
 #include "screens.h"
 
 // kwin libs
 #include <kwinglplatform.h>
 
 // KDE
 #include <KWayland/Client/surface.h>
 #include <KWayland/Server/buffer_interface.h>
 #include <KWayland/Server/display.h>
 
 // Qt
 #include <QOpenGLContext>
 
 namespace KWin
 {
 namespace Wayland
 {
 
 EglWaylandOutput::EglWaylandOutput(WaylandOutput *output, QObject *parent)
     : QObject(parent)
     , m_waylandOutput(output)
 {
 }
 
 bool EglWaylandOutput::init(EglWaylandBackend *backend)
 {
     auto surface = m_waylandOutput->surface();
     const QSize &size = m_waylandOutput->geometry().size();
     auto overlay = wl_egl_window_create(*surface, size.width(), size.height());
     if (!overlay) {
         qCCritical(KWIN_WAYLAND_BACKEND) << "Creating Wayland Egl window failed";
         return false;
     }
     m_overlay = overlay;
 
     EGLSurface eglSurface = EGL_NO_SURFACE;
     if (backend->havePlatformBase()) {
         eglSurface = eglCreatePlatformWindowSurfaceEXT(backend->eglDisplay(), backend->config(), (void *) overlay, nullptr);
     } else {
         eglSurface = eglCreateWindowSurface(backend->eglDisplay(), backend->config(), overlay, nullptr);
     }
     if (eglSurface == EGL_NO_SURFACE) {
         qCCritical(KWIN_WAYLAND_BACKEND) << "Create Window Surface failed";
         return false;
     }
     m_eglSurface = eglSurface;
 
     connect(m_waylandOutput, &WaylandOutput::sizeChanged, this, &EglWaylandOutput::updateSize);
 
     return true;
 }
 
 void EglWaylandOutput::updateSize(const QSize &size)
 {
     wl_egl_window_resize(m_overlay, size.width(), size.height(), 0, 0);
 }
 
 EglWaylandBackend::EglWaylandBackend(WaylandBackend *b)
     : AbstractEglBackend()
     , m_backend(b)
 {
     if (!m_backend) {
         setFailed("Wayland Backend has not been created");
         return;
     }
     qCDebug(KWIN_WAYLAND_BACKEND) << "Connected to Wayland display?" << (m_backend->display() ? "yes" : "no" );
     if (!m_backend->display()) {
         setFailed("Could not connect to Wayland compositor");
         return;
     }
 
     // Egl is always direct rendering
     setIsDirectRendering(true);
 
     connect(m_backend, &WaylandBackend::outputAdded, this, &EglWaylandBackend::createEglWaylandOutput);
     connect(m_backend, &WaylandBackend::outputRemoved, this,
         [this] (WaylandOutput *output) {
             auto it = std::find_if(m_outputs.begin(), m_outputs.end(),
                 [output] (const EglWaylandOutput *o) {
                     return o->m_waylandOutput == output;
                 }
             );
             if (it == m_outputs.end()) {
                 return;
             }
             cleanupOutput(*it);
             m_outputs.erase(it);
         }
     );
 }
 
 EglWaylandBackend::~EglWaylandBackend()
 {
     cleanup();
 }
 
 void EglWaylandBackend::cleanupSurfaces()
 {
     for (auto o : m_outputs) {
         cleanupOutput(o);
     }
     m_outputs.clear();
 }
 
 bool EglWaylandBackend::createEglWaylandOutput(WaylandOutput *waylandOutput)
 {
     auto *output = new EglWaylandOutput(waylandOutput, this);
-    if (output->init(this)) {
+    if (!output->init(this)) {
         return false;
     }
     m_outputs << output;
     return true;
 }
 
 void EglWaylandBackend::cleanupOutput(EglWaylandOutput *output)
 {
     wl_egl_window_destroy(output->m_overlay);
 }
 
 bool EglWaylandBackend::initializeEgl()
 {
     initClientExtensions();
     EGLDisplay display = m_backend->sceneEglDisplay();
 
     // Use eglGetPlatformDisplayEXT() to get the display pointer
     // if the implementation supports it.
     if (display == EGL_NO_DISPLAY) {
         m_havePlatformBase = hasClientExtension(QByteArrayLiteral("EGL_EXT_platform_base"));
         if (m_havePlatformBase) {
             // Make sure that the wayland platform is supported
             if (!hasClientExtension(QByteArrayLiteral("EGL_EXT_platform_wayland")))
                 return false;
 
             display = eglGetPlatformDisplayEXT(EGL_PLATFORM_WAYLAND_EXT, m_backend->display(), nullptr);
         } else {
             display = eglGetDisplay(m_backend->display());
         }
     }
 
     if (display == EGL_NO_DISPLAY)
         return false;
     setEglDisplay(display);
     return initEglAPI();
 }
 
 void EglWaylandBackend::init()
 {
     if (!initializeEgl()) {
         setFailed("Could not initialize egl");
         return;
     }
     if (!initRenderingContext()) {
         setFailed("Could not initialize rendering context");
         return;
     }
 
     initKWinGL();
     initBufferAge();
     initWayland();
 }
 
 bool EglWaylandBackend::initRenderingContext()
 {
     initBufferConfigs();
 
     if (!createContext()) {
         return false;
     }
 
     auto waylandOutputs = m_backend->waylandOutputs();
 
     // we only allow to start with at least one output
     if (waylandOutputs.isEmpty()) {
         return false;
     }
 
     for (auto *out : waylandOutputs) {
         if (!createEglWaylandOutput(out)) {
             return false;
         }
     }
 
     if (m_outputs.isEmpty()) {
         qCCritical(KWIN_WAYLAND_BACKEND) << "Create Window Surfaces failed";
         return false;
     }
 
     auto *firstOutput = m_outputs.first();
     // set our first surface as the one for the abstract backend, just to make it happy
     setSurface(firstOutput->m_eglSurface);
     return makeContextCurrent(firstOutput);
 }
 
 bool EglWaylandBackend::makeContextCurrent(EglWaylandOutput *output)
 {
     const EGLSurface eglSurface = output->m_eglSurface;
     if (eglSurface == EGL_NO_SURFACE) {
         return false;
     }
     if (eglMakeCurrent(eglDisplay(), eglSurface, eglSurface, context()) == EGL_FALSE) {
         qCCritical(KWIN_WAYLAND_BACKEND) << "Make Context Current failed";
         return false;
     }
 
     EGLint error = eglGetError();
     if (error != EGL_SUCCESS) {
         qCWarning(KWIN_WAYLAND_BACKEND) << "Error occurred while creating context " << error;
         return false;
     }
 
     const QRect &v = output->m_waylandOutput->geometry();
 
     qreal scale = output->m_waylandOutput->scale();
 
     const QSize overall = screens()->size();
     glViewport(-v.x() * scale, (v.height() - overall.height() + v.y()) * scale,
                overall.width() * scale, overall.height() * scale);
     return true;
 }
 
 bool EglWaylandBackend::initBufferConfigs()
 {
     const EGLint config_attribs[] = {
         EGL_SURFACE_TYPE,         EGL_WINDOW_BIT,
         EGL_RED_SIZE,             1,
         EGL_GREEN_SIZE,           1,
         EGL_BLUE_SIZE,            1,
         EGL_ALPHA_SIZE,           0,
         EGL_RENDERABLE_TYPE,      isOpenGLES() ? EGL_OPENGL_ES2_BIT : EGL_OPENGL_BIT,
         EGL_CONFIG_CAVEAT,        EGL_NONE,
         EGL_NONE,
     };
 
     EGLint count;
     EGLConfig configs[1024];
     if (eglChooseConfig(eglDisplay(), config_attribs, configs, 1, &count) == EGL_FALSE) {
         qCCritical(KWIN_WAYLAND_BACKEND) << "choose config failed";
         return false;
     }
     if (count != 1) {
         qCCritical(KWIN_WAYLAND_BACKEND) << "choose config did not return a config" << count;
         return false;
     }
     setConfig(configs[0]);
 
     return true;
 }
 
 void EglWaylandBackend::present()
 {
     for (auto *output: qAsConst(m_outputs)) {
         makeContextCurrent(output);
         presentOnSurface(output);
     }
 }
 
 void EglWaylandBackend::presentOnSurface(EglWaylandOutput *output)
 {
     output->m_waylandOutput->surface()->setupFrameCallback();
     Compositor::self()->aboutToSwapBuffers();
 
     if (supportsBufferAge()) {
         eglSwapBuffers(eglDisplay(), output->m_eglSurface);
         eglQuerySurface(eglDisplay(), output->m_eglSurface, EGL_BUFFER_AGE_EXT, &output->m_bufferAge);
     } else {
         eglSwapBuffers(eglDisplay(), output->m_eglSurface);
     }
 
 }
 
 void EglWaylandBackend::screenGeometryChanged(const QSize &size)
 {
     Q_UNUSED(size)
     // no backend specific code needed
     // TODO: base implementation in OpenGLBackend
 
     // The back buffer contents are now undefined
     for (auto *output : qAsConst(m_outputs)) {
         output->m_bufferAge = 0;
     }
 }
 
 SceneOpenGLTexturePrivate *EglWaylandBackend::createBackendTexture(SceneOpenGLTexture *texture)
 {
     return new EglWaylandTexture(texture, this);
 }
 
 QRegion EglWaylandBackend::prepareRenderingFrame()
 {
     eglWaitNative(EGL_CORE_NATIVE_ENGINE);
     startRenderTimer();
     return QRegion();
 }
 
 QRegion EglWaylandBackend::prepareRenderingForScreen(int screenId)
 {
     auto *output = m_outputs.at(screenId);
     makeContextCurrent(output);
     if (supportsBufferAge()) {
         QRegion region;
 
         // Note: An age of zero means the buffer contents are undefined
         if (output->m_bufferAge > 0 && output->m_bufferAge <= output->m_damageHistory.count()) {
             for (int i = 0; i < output->m_bufferAge - 1; i++)
                 region |= output->m_damageHistory[i];
         } else {
             region = output->m_waylandOutput->geometry();
         }
 
         return region;
     }
     return QRegion();
 }
 
 void EglWaylandBackend::endRenderingFrame(const QRegion &renderedRegion, const QRegion &damagedRegion)
 {
     Q_UNUSED(renderedRegion)
     Q_UNUSED(damagedRegion)
 }
 
 void EglWaylandBackend::endRenderingFrameForScreen(int screenId, const QRegion &renderedRegion, const QRegion &damagedRegion)
 {
     EglWaylandOutput *output = m_outputs[screenId];
     if (damagedRegion.intersected(output->m_waylandOutput->geometry()).isEmpty() && screenId == 0) {
 
         // If the damaged region of a window is fully occluded, the only
         // rendering done, if any, will have been to repair a reused back
         // buffer, making it identical to the front buffer.
         //
         // In this case we won't post the back buffer. Instead we'll just
         // set the buffer age to 1, so the repaired regions won't be
         // rendered again in the next frame.
         if (!renderedRegion.intersected(output->m_waylandOutput->geometry()).isEmpty()) {
             glFlush();
         }
 
         for (auto *o : qAsConst(m_outputs)) {
             o->m_bufferAge = 1;
         }
         return;
     }
     presentOnSurface(output);
 
     // Save the damaged region to history
     // Note: damage history is only collected for the first screen. See EglGbmBackend
     // for mor information regarding this limitation.
     if (supportsBufferAge() && screenId == 0) {
         if (output->m_damageHistory.count() > 10) {
             output->m_damageHistory.removeLast();
         }
 
         output->m_damageHistory.prepend(damagedRegion.intersected(output->m_waylandOutput->geometry()));
     }
 }
 
 bool EglWaylandBackend::usesOverlayWindow() const
 {
     return false;
 }
 
 bool EglWaylandBackend::perScreenRendering() const
 {
     return true;
 }
 
 /************************************************
  * EglTexture
  ************************************************/
 
 EglWaylandTexture::EglWaylandTexture(KWin::SceneOpenGLTexture *texture, KWin::Wayland::EglWaylandBackend *backend)
     : AbstractEglTexture(texture, backend)
 {
 }
 
 EglWaylandTexture::~EglWaylandTexture() = default;
 
 }
 }