1 files changed, 6 insertions, 3 deletions
diff --git a/src/plugins/platforms/xcb/qxcbbackingstore.cpp b/src/plugins/platforms/xcb/qxcbbackingstore.cpp
index d6cc0bc2af..8353fac6a9 100644
--- a/src/plugins/platforms/xcb/qxcbbackingstore.cpp
+++ b/src/plugins/platforms/xcb/qxcbbackingstore.cpp
@@ -173,7 +173,7 @@ void QXcbBackingStoreImage::init(const QSize &size, uint depth, QImage::Format f
     m_qimage_format = format;
     m_hasAlpha = QImage::toPixelFormat(m_qimage_format).alphaUsage() == QPixelFormat::UsesAlpha;
     if (!m_hasAlpha)
-        m_qimage_format = qt_maybeAlphaVersionWithSameDepth(m_qimage_format);
+        m_qimage_format = qt_maybeDataCompatibleAlphaVersion(m_qimage_format);
 
     memset(&m_shm_info, 0, sizeof m_shm_info);
 
@@ -866,6 +866,7 @@ void QXcbBackingStore::render(xcb_window_t window, const QRegion &region, const
 }
 
 QPlatformBackingStore::FlushResult QXcbBackingStore::rhiFlush(QWindow *window,
+                                                              qreal sourceDevicePixelRatio,
                                                               const QRegion &region,
                                                               const QPoint &offset,
                                                               QPlatformTextureList *textures,
@@ -876,8 +877,10 @@ QPlatformBackingStore::FlushResult QXcbBackingStore::rhiFlush(QWindow *window,
 
     m_image->flushScrolledRegion(true);
 
-    QPlatformBackingStore::rhiFlush(window, region, offset, textures, translucentBackground);
-
+    auto result = QPlatformBackingStore::rhiFlush(window, sourceDevicePixelRatio, region, offset,
+                                                  textures, translucentBackground);
+    if (result != FlushSuccess)
+        return result;
     QXcbWindow *platformWindow = static_cast<QXcbWindow *>(window->handle());
     if (platformWindow->needsSync()) {
         platformWindow->updateSyncRequestCounter();