--- qtbase-opensource-src-5.7.1/src/plugins/platforms/xcb/qxcbconnection.cpp	2016-12-01 02:17:04.000000000 -0600
+++ qtbase-opensource-src-5.7.1/src/plugins/platforms/xcb.new/qxcbconnection.cpp	2017-09-20 15:41:47.057359162 -0500
@@ -109,6 +109,9 @@
 Q_LOGGING_CATEGORY(lcQpaXInputDevices, "qt.qpa.input.devices")
 Q_LOGGING_CATEGORY(lcQpaXInputEvents, "qt.qpa.input.events")
 Q_LOGGING_CATEGORY(lcQpaScreen, "qt.qpa.screen")
+Q_LOGGING_CATEGORY(lcQpaXcb, "qt.qpa.xcb")
+Q_LOGGING_CATEGORY(lcQpaXcbError, "qt.qpa.xcb.xcberror")
+// TODO: How to categorize by xcberror type? (e.g. only BadWindow)
 
 // this event type was added in libxcb 1.10,
 // but we support also older version
@@ -996,7 +999,9 @@
     uint clamped_error_code = qMin<uint>(error->error_code, (sizeof(xcb_errors) / sizeof(xcb_errors[0])) - 1);
     uint clamped_major_code = qMin<uint>(error->major_code, (sizeof(xcb_protocol_request_codes) / sizeof(xcb_protocol_request_codes[0])) - 1);
 
-    qWarning("QXcbConnection: XCB error: %d (%s), sequence: %d, resource id: %d, major code: %d (%s), minor code: %d",
+    //TODO: Make the category filterable based on the XCB Error
+    qCWarning(lcQpaXcbError,
+           "QXcbConnection: XCB error: %d (%s), sequence: %d, resource id: %d, major code: %d (%s), minor code: %d",
            int(error->error_code), xcb_errors[clamped_error_code],
            int(error->sequence), int(error->resource_id),
            int(error->major_code), xcb_protocol_request_codes[clamped_major_code],
@@ -1006,19 +1011,19 @@
     int i = 0;
     for (; i < m_callLog.size(); ++i) {
         if (m_callLog.at(i).sequence == error->sequence) {
-            qDebug("Caused by: %s:%d", m_callLog.at(i).file.constData(), m_callLog.at(i).line);
+            qCDebug(lcQpaXcbError, "Caused by: %s:%d", m_callLog.at(i).file.constData(), m_callLog.at(i).line);
             break;
         } else if (m_callLog.at(i).sequence > error->sequence) {
-            qDebug("Caused some time before: %s:%d", m_callLog.at(i).file.constData(),
+            qCDebug(lcQpaXcbError, "Caused some time before: %s:%d", m_callLog.at(i).file.constData(),
                    m_callLog.at(i).line);
             if (i > 0)
-                qDebug("and after: %s:%d", m_callLog.at(i-1).file.constData(),
+                qCDebug(lcQpaXcbError, "and after: %s:%d", m_callLog.at(i-1).file.constData(),
                        m_callLog.at(i-1).line);
             break;
         }
     }
     if (i == m_callLog.size() && !m_callLog.isEmpty())
-        qDebug("Caused some time after: %s:%d", qAsConst(m_callLog).first().file.constData(),
+        qCDebug(lcQpaXcbError, "Caused some time after: %s:%d", qAsConst(m_callLog).first().file.constData(),
                qAsConst(m_callLog).first().line);
 #endif
 }
--- qtbase-opensource-src-5.7.1/src/plugins/platforms/xcb/qxcbconnection.h	2016-12-01 02:17:04.000000000 -0600
+++ qtbase-opensource-src-5.7.1/src/plugins/platforms/xcb.new/qxcbconnection.h	2017-09-20 15:35:55.655555316 -0500
@@ -87,6 +87,8 @@
 Q_DECLARE_LOGGING_CATEGORY(lcQpaXInputDevices)
 Q_DECLARE_LOGGING_CATEGORY(lcQpaXInputEvents)
 Q_DECLARE_LOGGING_CATEGORY(lcQpaScreen)
+Q_DECLARE_LOGGING_CATEGORY(lcQpaXcb)
+Q_DECLARE_LOGGING_CATEGORY(lcQpaXcbError)
 
 class QXcbVirtualDesktop;
 class QXcbScreen;