2 files changed, 3 insertions, 1 deletions
diff --git a/src/plugins/platforms/xcb/qxcbconnection.h b/src/plugins/platforms/xcb/qxcbconnection.h
index f466928360..c67acb3218 100644
--- a/src/plugins/platforms/xcb/qxcbconnection.h
+++ b/src/plugins/platforms/xcb/qxcbconnection.h
@@ -376,6 +376,8 @@ public:
     bool hasXRandr() const { return has_randr_extension; }
     bool hasInputShape() const { return has_input_shape; }
 
+    bool supportsThreadedRendering() const { return m_reader->isRunning(); }
+
     xcb_timestamp_t getTimestamp();
 
 private slots:
diff --git a/src/plugins/platforms/xcb/qxcbintegration.cpp b/src/plugins/platforms/xcb/qxcbintegration.cpp
index 2ffe53c04b..22e5386937 100644
--- a/src/plugins/platforms/xcb/qxcbintegration.cpp
+++ b/src/plugins/platforms/xcb/qxcbintegration.cpp
@@ -214,7 +214,7 @@ bool QXcbIntegration::hasCapability(QPlatformIntegration::Capability cap) const
 #else
     case OpenGL: return false;
 #endif
-    case ThreadedOpenGL: return false;
+    case ThreadedOpenGL: return m_connections.at(0)->supportsThreadedRendering();
     case WindowMasks: return true;
     case MultipleWindows: return true;
     default: return QPlatformIntegration::hasCapability(cap);