1 files changed, 3 insertions, 4 deletions
diff --git a/src/plugins/platforms/xcb/qxcbwindow.cpp b/src/plugins/platforms/xcb/qxcbwindow.cpp
index f46bed77d6..63894373b8 100644
--- a/src/plugins/platforms/xcb/qxcbwindow.cpp
+++ b/src/plugins/platforms/xcb/qxcbwindow.cpp
@@ -297,7 +297,7 @@ void QXcbWindow::create()
 #elif defined(XCB_USE_EGL)
         EGLDisplay eglDisplay = connection()->egl_display();
         EGLConfig eglConfig = q_configFromGLFormat(eglDisplay, m_format, true);
-        m_format = q_glFormatFromConfig(eglDisplay, eglConfig);
+        m_format = q_glFormatFromConfig(eglDisplay, eglConfig, m_format);
 
         VisualID id = QXlibEglIntegration::getCompatibleVisualId(DISPLAY_FROM_XCB(this), eglDisplay, eglConfig);
 
@@ -672,8 +672,6 @@ void QXcbWindow::show()
 
     m_screen->windowShown(this);
 
-    xcb_flush(xcb_connection());
-
     connection()->sync();
 }
 
@@ -1695,6 +1693,7 @@ void QXcbWindow::handleButtonPressEvent(const xcb_button_press_event_t *event)
     Qt::KeyboardModifiers modifiers = connection()->keyboard()->translateModifiers(event->state);
 
     if (isWheel) {
+#ifndef XCB_USE_XINPUT21
         // Logic borrowed from qapplication_x11.cpp
         int delta = 120 * ((event->detail == 4 || event->detail == 6) ? 1 : -1);
         bool hor = (((event->detail == 4 || event->detail == 5)
@@ -1703,6 +1702,7 @@ void QXcbWindow::handleButtonPressEvent(const xcb_button_press_event_t *event)
 
         QWindowSystemInterface::handleWheelEvent(window(), event->time,
                                                  local, global, delta, hor ? Qt::Horizontal : Qt::Vertical, modifiers);
+#endif
         return;
     }
 
@@ -1893,7 +1893,6 @@ void QXcbWindow::updateSyncRequestCounter()
 {
     if (m_usingSyncProtocol && (m_syncValue.lo != 0 || m_syncValue.hi != 0)) {
         Q_XCB_CALL(xcb_sync_set_counter(xcb_connection(), m_syncCounter, m_syncValue));
-        xcb_flush(xcb_connection());
         connection()->sync();
 
         m_syncValue.lo = 0;