1 files changed, 6 insertions, 1 deletions
diff --git a/src/plugins/platforms/xcb/qxcbintegration.cpp b/src/plugins/platforms/xcb/qxcbintegration.cpp
index 5a89113a4f..802f7b85ce 100644
--- a/src/plugins/platforms/xcb/qxcbintegration.cpp
+++ b/src/plugins/platforms/xcb/qxcbintegration.cpp
@@ -267,9 +267,14 @@ bool QXcbIntegration::hasCapability(QPlatformIntegration::Capability cap) const
     case ForeignWindows:
     case SyncState:
     case RasterGLSurface:
-    case SwitchableWidgetComposition:
         return true;
 
+    case SwitchableWidgetComposition:
+    {
+        return m_connections.at(0)->glIntegration()
+            && m_connections.at(0)->glIntegration()->supportsSwitchableWidgetComposition();
+    }
+
     default: return QPlatformIntegration::hasCapability(cap);
     }
 }