17 files changed, 276 insertions, 253 deletions
diff --git a/src/plugins/platforms/cocoa/qcocoasystemtrayicon.h b/src/plugins/platforms/cocoa/qcocoasystemtrayicon.h
index 6779bda491..738c40aba6 100644
--- a/src/plugins/platforms/cocoa/qcocoasystemtrayicon.h
+++ b/src/plugins/platforms/cocoa/qcocoasystemtrayicon.h
@@ -65,7 +65,7 @@ public:
     void updateMenu(QPlatformMenu *menu) override;
     QRect geometry() const override;
     void showMessage(const QString &title, const QString &msg,
-                     const QIcon& icon, MessageIcon iconType, int secs) override;
+                     const QIcon& icon, MessageIcon iconType, int msecs) override;
 
     bool isSystemTrayAvailable() const override;
     bool supportsMessages() const override;
diff --git a/src/plugins/platforms/cocoa/qcocoasystemtrayicon.mm b/src/plugins/platforms/cocoa/qcocoasystemtrayicon.mm
index db64702b8d..1390ace632 100644
--- a/src/plugins/platforms/cocoa/qcocoasystemtrayicon.mm
+++ b/src/plugins/platforms/cocoa/qcocoasystemtrayicon.mm
@@ -264,7 +264,7 @@ bool QCocoaSystemTrayIcon::supportsMessages() const
 }
 
 void QCocoaSystemTrayIcon::showMessage(const QString &title, const QString &message,
-                                       const QIcon& icon, MessageIcon, int)
+                                       const QIcon& icon, MessageIcon, int msecs)
 {
     if (!m_sys)
         return;
@@ -282,6 +282,10 @@ void QCocoaSystemTrayIcon::showMessage(const QString &title, const QString &mess
     NSUserNotificationCenter *center = NSUserNotificationCenter.defaultUserNotificationCenter;
     center.delegate = m_sys->item;
     [center deliverNotification:notification];
+    if (msecs) {
+        NSTimeInterval timeout = msecs / 1000.0;
+        [center performSelector:@selector(removeDeliveredNotification:) withObject:notification afterDelay:timeout];
+    }
     [notification release];
 }
 QT_END_NAMESPACE
@@ -434,8 +438,7 @@ QT_END_NAMESPACE
 }
 
 - (void)userNotificationCenter:(NSUserNotificationCenter *)center didActivateNotification:(NSUserNotification *)notification {
-    Q_UNUSED(center);
-    Q_UNUSED(notification);
+    [center removeDeliveredNotification:notification];
     emit systray->messageClicked();
 }
 
diff --git a/src/plugins/platforms/windows/qwindowsglcontext.cpp b/src/plugins/platforms/windows/qwindowsglcontext.cpp
index 101db75d0b..64b83e2bc4 100644
--- a/src/plugins/platforms/windows/qwindowsglcontext.cpp
+++ b/src/plugins/platforms/windows/qwindowsglcontext.cpp
@@ -196,6 +196,7 @@ bool QWindowsOpengl32DLL::init(bool softwareRendering)
     wglShareLists = reinterpret_cast<BOOL (WINAPI *)(HGLRC, HGLRC)>(resolve("wglShareLists"));
     wglSwapBuffers = reinterpret_cast<BOOL (WINAPI *)(HDC)>(resolve("wglSwapBuffers"));
     wglSetPixelFormat = reinterpret_cast<BOOL (WINAPI *)(HDC, int, const PIXELFORMATDESCRIPTOR *)>(resolve("wglSetPixelFormat"));
+    wglDescribePixelFormat = reinterpret_cast<int (WINAPI *)(HDC, int, UINT, PIXELFORMATDESCRIPTOR *)>(resolve("wglDescribePixelFormat"));
 
     glGetError = reinterpret_cast<GLenum (APIENTRY *)()>(resolve("glGetError"));
     glGetIntegerv = reinterpret_cast<void (APIENTRY *)(GLenum , GLint *)>(resolve("glGetIntegerv"));
@@ -214,6 +215,11 @@ BOOL QWindowsOpengl32DLL::setPixelFormat(HDC dc, int pf, const PIXELFORMATDESCRI
     return moduleIsNotOpengl32() ? wglSetPixelFormat(dc, pf, pfd) : SetPixelFormat(dc, pf, pfd);
 }
 
+int QWindowsOpengl32DLL::describePixelFormat(HDC dc, int pf, UINT size, PIXELFORMATDESCRIPTOR *pfd)
+{
+    return moduleIsNotOpengl32() ? wglDescribePixelFormat(dc, pf, size, pfd) : DescribePixelFormat(dc, pf, size, pfd);
+}
+
 QWindowsOpenGLContext *QOpenGLStaticContext::createContext(QOpenGLContext *context)
 {
     return new QWindowsGLContext(this, context);
@@ -322,11 +328,11 @@ static inline bool
 
 static void describeFormats(HDC hdc)
 {
-    const int pfiMax = DescribePixelFormat(hdc, 0, 0, nullptr);
+    const int pfiMax = QOpenGLStaticContext::opengl32.describePixelFormat(hdc, 0, 0, nullptr);
     for (int i = 0; i < pfiMax; i++) {
         PIXELFORMATDESCRIPTOR pfd;
         initPixelFormatDescriptor(&pfd);
-        DescribePixelFormat(hdc, i, sizeof(PIXELFORMATDESCRIPTOR), &pfd);
+        QOpenGLStaticContext::opengl32.describePixelFormat(hdc, i, sizeof(PIXELFORMATDESCRIPTOR), &pfd);
         qCDebug(lcQpaGl) << '#' << i << '/' << pfiMax << ':' << pfd;
     }
 }
@@ -617,7 +623,7 @@ static int choosePixelFormat(HDC hdc,
     // Verify if format is acceptable. Note that the returned
     // formats have been observed to not contain PFD_SUPPORT_OPENGL, ignore.
     initPixelFormatDescriptor(obtainedPfd);
-    DescribePixelFormat(hdc, pixelFormat, sizeof(PIXELFORMATDESCRIPTOR), obtainedPfd);
+    QOpenGLStaticContext::opengl32.describePixelFormat(hdc, pixelFormat, sizeof(PIXELFORMATDESCRIPTOR), obtainedPfd);
     if (!isAcceptableFormat(additional, *obtainedPfd, true)) {
         qCDebug(lcQpaGl) << __FUNCTION__ << " obtained px #" << pixelFormat
             << " not acceptable=" << *obtainedPfd;
diff --git a/src/plugins/platforms/windows/qwindowsglcontext.h b/src/plugins/platforms/windows/qwindowsglcontext.h
index 1abe2eb390..e962af39c2 100644
--- a/src/plugins/platforms/windows/qwindowsglcontext.h
+++ b/src/plugins/platforms/windows/qwindowsglcontext.h
@@ -107,6 +107,7 @@ struct QWindowsOpengl32DLL
     // Wrappers. Always use these instead of SwapBuffers/wglSwapBuffers/etc.
     BOOL swapBuffers(HDC dc);
     BOOL setPixelFormat(HDC dc, int pf, const PIXELFORMATDESCRIPTOR *pfd);
+    int describePixelFormat(HDC dc, int pf, UINT size, PIXELFORMATDESCRIPTOR *pfd);
 
     // WGL
     HGLRC (WINAPI * wglCreateContext)(HDC dc);
@@ -130,6 +131,7 @@ private:
     // For Mesa llvmpipe shipped with a name other than opengl32.dll
     BOOL (WINAPI * wglSwapBuffers)(HDC dc);
     BOOL (WINAPI * wglSetPixelFormat)(HDC dc, int pf, const PIXELFORMATDESCRIPTOR *pfd);
+    int (WINAPI * wglDescribePixelFormat)(HDC dc, int pf, UINT size, PIXELFORMATDESCRIPTOR *pfd);
 };
 
 class QOpenGLStaticContext : public QWindowsStaticOpenGLContext
diff --git a/src/plugins/platforms/windows/qwindowsopengltester.cpp b/src/plugins/platforms/windows/qwindowsopengltester.cpp
index afc1991e2c..63ecbfe0ea 100644
--- a/src/plugins/platforms/windows/qwindowsopengltester.cpp
+++ b/src/plugins/platforms/windows/qwindowsopengltester.cpp
@@ -47,6 +47,7 @@
 #include <QtCore/qfile.h>
 #include <QtCore/qfileinfo.h>
 #include <QtCore/qstandardpaths.h>
+#include <QtCore/qlibrary.h>
 #include <QtCore/qlibraryinfo.h>
 #include <QtCore/qhash.h>
 
@@ -57,6 +58,8 @@
 #include <QtCore/qt_windows.h>
 #include <private/qsystemlibrary_p.h>
 #include <d3d9.h>
+#include <d3d10.h>
+#include <dxgi.h>
 
 QT_BEGIN_NAMESPACE
 
@@ -80,52 +83,259 @@ static GpuDescription adapterIdentifierToGpuDescription(const D3DADAPTER_IDENTIF
     return result;
 }
 
-class QDirect3D9Handle
+class QGraphicsAdapterInfo
 {
 public:
-    Q_DISABLE_COPY_MOVE(QDirect3D9Handle)
+    Q_DISABLE_COPY_MOVE(QGraphicsAdapterInfo)
 
-    QDirect3D9Handle();
-    ~QDirect3D9Handle();
+    QGraphicsAdapterInfo();
+    ~QGraphicsAdapterInfo();
 
-    bool isValid() const { return m_direct3D9 != nullptr; }
+    bool isValid() const;
 
-    UINT adapterCount() const { return m_direct3D9 ? m_direct3D9->GetAdapterCount() : 0u; }
+    UINT adapterCount() const;
     bool retrieveAdapterIdentifier(UINT n, D3DADAPTER_IDENTIFIER9 *adapterIdentifier) const;
 
 private:
+    QSystemLibrary m_dxgilib;
+    IDXGIFactory1 *m_dxgiFactory1 = nullptr;
+
     QSystemLibrary m_d3d9lib;
     IDirect3D9 *m_direct3D9 = nullptr;
+
+    /* This is a value from the DXGI_ADAPTER_FLAG enum.
+     * However, it's not available in dxgi.h from MinGW,
+     * so define it here in any case. */
+    enum { DXGI_ADAPTER_FLAG_SOFTWARE = 2 };
+
+    UINT adapterCountDXGI() const;
+    bool retrieveAdapterIdentifierDXGI(UINT n, D3DADAPTER_IDENTIFIER9 *adapterIdentifier) const;
+
+    UINT adapterCountD3D9() const;
+    bool retrieveAdapterIdentifierD3D9(UINT n, D3DADAPTER_IDENTIFIER9 *adapterIdentifier) const;
 };
 
-QDirect3D9Handle::QDirect3D9Handle() :
+QGraphicsAdapterInfo::QGraphicsAdapterInfo() :
+    m_dxgilib(QStringLiteral("dxgi")),
     m_d3d9lib(QStringLiteral("d3d9"))
 {
-    using PtrDirect3DCreate9 = IDirect3D9 *(WINAPI *)(UINT);
+    using PtrCreateDXGIFactory1 = HRESULT (WINAPI *)(REFIID, void**);
 
-    if (m_d3d9lib.load()) {
-        if (auto direct3DCreate9 = (PtrDirect3DCreate9)m_d3d9lib.resolve("Direct3DCreate9"))
-            m_direct3D9 = direct3DCreate9(D3D_SDK_VERSION);
+    if (m_dxgilib.load()) {
+        if (auto createDXGIFactory1 = (PtrCreateDXGIFactory1)m_dxgilib.resolve("CreateDXGIFactory1"))
+            createDXGIFactory1(IID_PPV_ARGS(&m_dxgiFactory1));
+    }
+
+    if (!m_dxgiFactory1) {
+        using PtrDirect3DCreate9 = IDirect3D9 *(WINAPI *)(UINT);
+
+        if (m_d3d9lib.load()) {
+            if (auto direct3DCreate9 = (PtrDirect3DCreate9)m_d3d9lib.resolve("Direct3DCreate9"))
+                m_direct3D9 = direct3DCreate9(D3D_SDK_VERSION);
+        }
     }
 }
 
-QDirect3D9Handle::~QDirect3D9Handle()
+QGraphicsAdapterInfo::~QGraphicsAdapterInfo()
 {
+    if (m_dxgiFactory1)
+       m_dxgiFactory1->Release();
     if (m_direct3D9)
        m_direct3D9->Release();
 }
 
-bool QDirect3D9Handle::retrieveAdapterIdentifier(UINT n, D3DADAPTER_IDENTIFIER9 *adapterIdentifier) const
+bool QGraphicsAdapterInfo::isValid() const
+{
+    return m_dxgiFactory1 != nullptr || m_direct3D9 != nullptr;
+}
+
+UINT QGraphicsAdapterInfo::adapterCount() const
+{
+    if (m_dxgiFactory1)
+        return adapterCountDXGI();
+    if (m_direct3D9)
+        return adapterCountD3D9();
+    return 0;
+}
+
+bool QGraphicsAdapterInfo::retrieveAdapterIdentifier(UINT n, D3DADAPTER_IDENTIFIER9 *adapterIdentifier) const
+{
+    if (m_dxgiFactory1)
+        return retrieveAdapterIdentifierDXGI(n, adapterIdentifier);
+    if (m_direct3D9)
+        return retrieveAdapterIdentifierD3D9(n, adapterIdentifier);
+    return false;
+}
+
+UINT QGraphicsAdapterInfo::adapterCountDXGI() const
+{
+    /* DXGI doesn't have an adapterCount(), instead we have to call EnumAdapters1()
+     * until DXGI_ERROR_NOT_FOUND is returned. */
+    UINT n = 0;
+
+    IDXGIAdapter1 *adapter;
+    while (SUCCEEDED(m_dxgiFactory1->EnumAdapters1(n, &adapter))) {
+        adapter->Release();
+        ++n;
+    }
+
+    return n;
+}
+
+// Detect whether we are running under 64-bit Windows.
+static bool isWow64Process()
+{
+    typedef BOOL (WINAPI *IsWow64ProcessPtr)(HANDLE hProcess, PBOOL Wow64Process);
+    IsWow64ProcessPtr IsWow64Process = (IsWow64ProcessPtr)QLibrary::resolve(
+                QStringLiteral("kernel32.dll"), "IsWow64Process");
+
+    if (IsWow64Process) {
+        BOOL IsWow64 = FALSE;
+        if (IsWow64Process(GetCurrentProcess(), &IsWow64))
+            return IsWow64;
+    }
+    return false;
+}
+
+// Read a string value from registry
+static QString regGetString(HKEY key, const wchar_t* valueName)
+{
+    QVarLengthArray<wchar_t, MAX_PATH> buf (MAX_PATH);
+    LRESULT res;
+    DWORD bufSize = buf.size() * sizeof(wchar_t);
+    res = RegGetValue(key, nullptr, valueName,
+                      RRF_RT_REG_SZ | RRF_RT_REG_MULTI_SZ, nullptr,
+                      buf.data(), &bufSize);
+    if (res == ERROR_MORE_DATA) {
+        buf.resize(bufSize / sizeof(wchar_t));
+        bufSize = buf.size() * sizeof(wchar_t);
+        res = RegGetValue(key, nullptr, valueName,
+                        RRF_RT_REG_SZ | RRF_RT_REG_MULTI_SZ, nullptr,
+                        buf.data(), &bufSize);
+    }
+    /* In case of REG_MULTI_SZ, this returns just the first string,
+     * but that is sufficient for our purposes. */
+    if (res == ERROR_SUCCESS)
+        return QString::fromWCharArray(buf.data());
+    return QString();
+}
+
+// Read driver name given a DeviceKey
+static QString retrieveDriverName(const wchar_t *driverKey)
+{
+    /* Kernel-style prefix, maps to HKLM
+     * (see https://docs.microsoft.com/en-us/windows-hardware/drivers/kernel/registry-key-object-routines) */
+    static const wchar_t prefixMappingHKLM[] = L"\\Registry\\Machine\\";
+    const size_t prefixMappingHKLMLen = wcslen(prefixMappingHKLM);
+    if (wcsnicmp(driverKey, prefixMappingHKLM, prefixMappingHKLMLen) != 0)
+        return QString();
+
+    driverKey += prefixMappingHKLMLen;
+    QString driverPath;
+    HKEY key;
+    if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, driverKey, 0, KEY_READ | KEY_WOW64_64KEY, &key) == ERROR_SUCCESS) {
+        const wchar_t *valueName =
+                isWow64Process() ? L"UserModeDriverNameWow" : L"UserModeDriverName";
+        driverPath = regGetString(key, valueName);
+        RegCloseKey(key);
+    }
+    if (!driverPath.isEmpty()) {
+        int fileNameSep = driverPath.lastIndexOf(QLatin1Char('\\'));
+        if (fileNameSep >= 0)
+            driverPath = driverPath.mid(fileNameSep + 1);
+        return driverPath;
+    }
+    return QString();
+}
+
+// Retrieve driver name for a display device from registry.
+static QString driverNameForDevice(const wchar_t *displayDevice)
+{
+    QString driverName;
+    DISPLAY_DEVICE dd;
+    memset(&dd, 0, sizeof(dd));
+    dd.cb = sizeof(dd);
+    for (int dev = 0; EnumDisplayDevices(nullptr, dev, &dd, 0); ++dev) {
+        if (wcsicmp(displayDevice, dd.DeviceName) == 0) {
+            // DeviceKey is documented as "internal", but it's a registry key in kernel format
+            driverName = retrieveDriverName(dd.DeviceKey);
+            break;
+        }
+    }
+    if (driverName.isEmpty()) {
+        /* Fall back to driver name from EnumDisplaySettings.
+         * This is only a fallback as on Windows 10 this just returns an device-independent
+         * name. OTOH, it's possible to recognize RDP connections from the driver name. */
+        DEVMODE devMode;
+        if (EnumDisplaySettings(displayDevice, ENUM_CURRENT_SETTINGS, &devMode))
+            driverName = QString::fromWCharArray(devMode.dmDeviceName);
+    }
+    return driverName;
+}
+
+bool QGraphicsAdapterInfo::retrieveAdapterIdentifierDXGI(UINT n, D3DADAPTER_IDENTIFIER9 *adapterIdentifier) const
+{
+    IDXGIAdapter1 *adapter;
+    if (FAILED(m_dxgiFactory1->EnumAdapters1(n, &adapter)))
+        return false;
+
+    bool result = false;
+
+    DXGI_ADAPTER_DESC1 adapterDesc;
+    if (SUCCEEDED(adapter->GetDesc1(&adapterDesc))) {
+        if ((adapterDesc.VendorId != 0) && (adapterDesc.DeviceId != 0) // Don't use adapter description of Software Devices
+            && ((adapterDesc.Flags & DXGI_ADAPTER_FLAG_SOFTWARE) == 0)) {
+            memset(adapterIdentifier, 0, sizeof(*adapterIdentifier));
+            WideCharToMultiByte(1252, 0, adapterDesc.Description, -1,
+                                adapterIdentifier->Description,
+                                sizeof(adapterIdentifier->Description), nullptr, nullptr);
+            adapterIdentifier->Description[sizeof(adapterIdentifier->Description) - 1] = 0;
+            adapterIdentifier->VendorId = adapterDesc.VendorId;
+            adapterIdentifier->DeviceId = adapterDesc.DeviceId;
+            adapterIdentifier->SubSysId = adapterDesc.SubSysId;
+            adapterIdentifier->Revision = adapterDesc.Revision;
+
+            LARGE_INTEGER umdVersion;
+            if (SUCCEEDED(adapter->CheckInterfaceSupport(__uuidof(ID3D10Device), &umdVersion))) {
+                adapterIdentifier->DriverVersion = umdVersion;
+                result = true;
+            }
+
+            /* DXGI doesn't expose the driver name, but we can get it from the registry.
+             * But we need a device name to follow. */
+            IDXGIOutput *output = nullptr;
+            if (SUCCEEDED(adapter->EnumOutputs (0, &output))) {
+                DXGI_OUTPUT_DESC outputDesc;
+                if (SUCCEEDED(output->GetDesc (&outputDesc))) {
+                    QString driverName = driverNameForDevice(outputDesc.DeviceName);
+                    qstrncpy(adapterIdentifier->Driver, driverName.toLatin1().constData(),
+                             sizeof(adapterIdentifier->Driver));
+                }
+                output->Release();
+            }
+        }
+    }
+
+    adapter->Release();
+
+    return result;
+}
+
+UINT QGraphicsAdapterInfo::adapterCountD3D9() const
+{
+    return m_direct3D9->GetAdapterCount();
+}
+
+bool QGraphicsAdapterInfo::retrieveAdapterIdentifierD3D9(UINT n, D3DADAPTER_IDENTIFIER9 *adapterIdentifier) const
 {
-    return m_direct3D9
-        && SUCCEEDED(m_direct3D9->GetAdapterIdentifier(n, 0, adapterIdentifier));
+    return SUCCEEDED(m_direct3D9->GetAdapterIdentifier(n, 0, adapterIdentifier));
 }
 
 GpuDescription GpuDescription::detect()
 {
     GpuDescription result;
-    QDirect3D9Handle direct3D9;
-    if (!direct3D9.isValid())
+    QGraphicsAdapterInfo adapterInfo;
+    if (!adapterInfo.isValid())
         return result;
 
     D3DADAPTER_IDENTIFIER9 adapterIdentifier;
@@ -136,7 +346,7 @@ GpuDescription GpuDescription::detect()
     // and D3D uses by default. Therefore querying any additional adapters is
     // futile and not useful for our purposes in general, except for
     // identifying a few special cases later on.
-    if (direct3D9.retrieveAdapterIdentifier(0, &adapterIdentifier)) {
+    if (adapterInfo.retrieveAdapterIdentifier(0, &adapterIdentifier)) {
         result = adapterIdentifierToGpuDescription(adapterIdentifier);
         isAMD = result.vendorId == VENDOR_ID_AMD;
     }
@@ -145,9 +355,9 @@ GpuDescription GpuDescription::detect()
     // when starting apps on a screen connected to the Intel card) by looking
     // for a default AMD adapter and an additional non-AMD one.
     if (isAMD) {
-        const UINT adapterCount = direct3D9.adapterCount();
+        const UINT adapterCount = adapterInfo.adapterCount();
         for (UINT adp = 1; adp < adapterCount; ++adp) {
-            if (direct3D9.retrieveAdapterIdentifier(adp, &adapterIdentifier)
+            if (adapterInfo.retrieveAdapterIdentifier(adp, &adapterIdentifier)
                 && adapterIdentifier.VendorId != VENDOR_ID_AMD) {
                 // Bingo. Now figure out the display for the AMD card.
                 DISPLAY_DEVICE dd;
@@ -172,11 +382,11 @@ GpuDescription GpuDescription::detect()
 QVector<GpuDescription> GpuDescription::detectAll()
 {
     QVector<GpuDescription> result;
-    QDirect3D9Handle direct3D9;
-    if (const UINT adapterCount = direct3D9.adapterCount()) {
+    QGraphicsAdapterInfo adapterInfo;
+    if (const UINT adapterCount = adapterInfo.adapterCount()) {
         for (UINT adp = 0; adp < adapterCount; ++adp) {
             D3DADAPTER_IDENTIFIER9 adapterIdentifier;
-            if (direct3D9.retrieveAdapterIdentifier(adp, &adapterIdentifier))
+            if (adapterInfo.retrieveAdapterIdentifier(adp, &adapterIdentifier))
                 result.append(adapterIdentifierToGpuDescription(adapterIdentifier));
         }
     }
diff --git a/src/plugins/platforms/windows/windows.pri b/src/plugins/platforms/windows/windows.pri
index 95ba961df1..7de6369541 100644
--- a/src/plugins/platforms/windows/windows.pri
+++ b/src/plugins/platforms/windows/windows.pri
@@ -12,6 +12,8 @@ LIBS += -lshlwapi -lwtsapi32
 QMAKE_USE_PRIVATE += \
     advapi32 \
     d3d9/nolink \
+    d3d11/nolink \
+    dxgi/nolink \
     ole32 \
     shell32 \
     user32 \
diff --git a/src/plugins/platforms/xcb/qxcbconnection.cpp b/src/plugins/platforms/xcb/qxcbconnection.cpp
index cac6345b66..e51c3d0502 100644
--- a/src/plugins/platforms/xcb/qxcbconnection.cpp
+++ b/src/plugins/platforms/xcb/qxcbconnection.cpp
@@ -66,14 +66,10 @@
 #include <errno.h>
 
 #include <xcb/xfixes.h>
-#if QT_CONFIG(xkb)
 #define explicit dont_use_cxx_explicit
 #include <xcb/xkb.h>
 #undef explicit
-#endif
-#if QT_CONFIG(xcb_xinput)
 #include <xcb/xinput.h>
-#endif
 
 QT_BEGIN_NAMESPACE
 
@@ -88,12 +84,6 @@ Q_LOGGING_CATEGORY(lcQpaKeyboard, "qt.qpa.xkeyboard")
 Q_LOGGING_CATEGORY(lcQpaClipboard, "qt.qpa.clipboard")
 Q_LOGGING_CATEGORY(lcQpaXDnd, "qt.qpa.xdnd")
 
-// this event type was added in libxcb 1.10,
-// but we support also older version
-#ifndef XCB_GE_GENERIC
-#define XCB_GE_GENERIC 35
-#endif
-
 QXcbConnection::QXcbConnection(QXcbNativeInterface *nativeInterface, bool canGrabServer, xcb_visualid_t defaultVisualId, const char *displayName)
     : QXcbBasicConnection(displayName)
     , m_canGrabServer(canGrabServer)
@@ -112,12 +102,10 @@ QXcbConnection::QXcbConnection(QXcbNativeInterface *nativeInterface, bool canGra
 
     initializeScreens();
 
-#if QT_CONFIG(xcb_xinput)
     if (hasXInput2()) {
         xi2SetupDevices();
         xi2SelectStateEvents();
     }
-#endif
 
     m_wmSupport.reset(new QXcbWMSupport(this));
     m_keyboard = new QXcbKeyboard(this);
@@ -518,7 +506,6 @@ Qt::MouseButton QXcbConnection::translateMouseButton(xcb_button_t s)
     }
 }
 
-#if QT_CONFIG(xkb)
 namespace {
     typedef union {
         /* All XKB events share these fields. */
@@ -534,7 +521,6 @@ namespace {
         xcb_xkb_state_notify_event_t state_notify;
     } _xkb_event;
 }
-#endif
 
 void QXcbConnection::handleXcbEvent(xcb_generic_event_t *event)
 {
@@ -611,16 +597,12 @@ void QXcbConnection::handleXcbEvent(xcb_generic_event_t *event)
         HANDLE_PLATFORM_WINDOW_EVENT(xcb_client_message_event_t, window, handleClientMessageEvent);
     }
     case XCB_ENTER_NOTIFY:
-#if QT_CONFIG(xcb_xinput)
         if (hasXInput2() && !xi2MouseEventsDisabled())
             break;
-#endif
         HANDLE_PLATFORM_WINDOW_EVENT(xcb_enter_notify_event_t, event, handleEnterNotifyEvent);
     case XCB_LEAVE_NOTIFY:
-#if QT_CONFIG(xcb_xinput)
         if (hasXInput2() && !xi2MouseEventsDisabled())
             break;
-#endif
         m_keyboard->updateXKBStateFromCore(reinterpret_cast<xcb_leave_notify_event_t *>(event)->state);
         HANDLE_PLATFORM_WINDOW_EVENT(xcb_leave_notify_event_t, event, handleLeaveNotifyEvent);
     case XCB_FOCUS_IN:
@@ -682,13 +664,11 @@ void QXcbConnection::handleXcbEvent(xcb_generic_event_t *event)
         }
         break;
     }
-#if QT_CONFIG(xcb_xinput)
     case XCB_GE_GENERIC:
         // Here the windowEventListener is invoked from xi2HandleEvent()
         if (hasXInput2() && isXIEvent(event))
             xi2HandleEvent(reinterpret_cast<xcb_ge_event_t *>(event));
         break;
-#endif
     default:
         handled = false; // event type not recognized
         break;
@@ -712,7 +692,6 @@ void QXcbConnection::handleXcbEvent(xcb_generic_event_t *event)
         auto change_event = reinterpret_cast<xcb_randr_screen_change_notify_event_t *>(event);
         if (auto virtualDesktop = virtualDesktopForRootWindow(change_event->root))
             virtualDesktop->handleScreenChange(change_event);
-#if QT_CONFIG(xkb)
     } else if (isXkbType(response_type)) {
         auto xkb_event = reinterpret_cast<_xkb_event *>(event);
         if (xkb_event->any.deviceID == m_keyboard->coreDeviceId()) {
@@ -735,7 +714,6 @@ void QXcbConnection::handleXcbEvent(xcb_generic_event_t *event)
                     break;
             }
         }
-#endif
     } else {
         handled = false; // event type still not recognized
     }
@@ -912,7 +890,6 @@ bool QXcbConnection::compressEvent(xcb_generic_event_t *event) const
         });
     }
 
-#if QT_CONFIG(xcb_xinput)
     // compress XI_* events
     if (responseType == XCB_GE_GENERIC) {
         if (!hasXInput2())
@@ -948,7 +925,6 @@ bool QXcbConnection::compressEvent(xcb_generic_event_t *event) const
 
         return false;
     }
-#endif
 
     if (responseType == XCB_CONFIGURE_NOTIFY) {
         // compress multiple configure notify events for the same window
@@ -978,7 +954,6 @@ bool QXcbConnection::isUserInputEvent(xcb_generic_event_t *event) const
     if (isInputEvent)
         return true;
 
-#if QT_CONFIG(xcb_xinput)
     if (connection()->hasXInput2()) {
         isInputEvent = isXIType(event, XCB_INPUT_BUTTON_PRESS) ||
                        isXIType(event, XCB_INPUT_BUTTON_RELEASE) ||
@@ -993,7 +968,6 @@ bool QXcbConnection::isUserInputEvent(xcb_generic_event_t *event) const
     }
     if (isInputEvent)
         return true;
-#endif
 
     if (eventType == XCB_CLIENT_MESSAGE) {
         auto clientMessage = reinterpret_cast<const xcb_client_message_event_t *>(event);
diff --git a/src/plugins/platforms/xcb/qxcbconnection.h b/src/plugins/platforms/xcb/qxcbconnection.h
index 7cf25d41a6..a894944096 100644
--- a/src/plugins/platforms/xcb/qxcbconnection.h
+++ b/src/plugins/platforms/xcb/qxcbconnection.h
@@ -104,10 +104,8 @@ public:
     virtual void handleFocusInEvent(const xcb_focus_in_event_t *) {}
     virtual void handleFocusOutEvent(const xcb_focus_out_event_t *) {}
     virtual void handlePropertyNotifyEvent(const xcb_property_notify_event_t *) {}
-#if QT_CONFIG(xcb_xinput)
     virtual void handleXIMouseEvent(xcb_ge_event_t *, Qt::MouseEventSource = Qt::MouseEventNotSynthesized) {}
     virtual void handleXIEnterLeave(xcb_ge_event_t *) {}
-#endif
     virtual QXcbWindow *toWindow() { return nullptr; }
 };
 
@@ -225,7 +223,6 @@ public:
 
     bool isUserInputEvent(xcb_generic_event_t *event) const;
 
-#if QT_CONFIG(xcb_xinput)
     void xi2SelectStateEvents();
     void xi2SelectDeviceEvents(xcb_window_t window);
     void xi2SelectDeviceEventsCompatibility(xcb_window_t window);
@@ -236,7 +233,6 @@ public:
     bool startSystemMoveResizeForTouchBegin(xcb_window_t window, const QPoint &point, int corner);
     void abortSystemMoveResizeForTouch();
     bool isTouchScreen(int id);
-#endif
 
     bool canGrab() const { return m_canGrabServer; }
 
@@ -267,7 +263,6 @@ private:
     inline bool timeGreaterThan(xcb_timestamp_t a, xcb_timestamp_t b) const
     { return static_cast<int32_t>(a - b) > 0 || b == XCB_CURRENT_TIME; }
 
-#if QT_CONFIG(xcb_xinput)
     void xi2SetupDevice(void *info, bool removeExisting = true);
     void xi2SetupDevices();
     struct TouchDeviceData {
@@ -341,7 +336,6 @@ private:
         uint32_t pointid;
         int corner;
     } m_startSystemMoveResizeInfo;
-#endif // QT_CONFIG(xcb_xinput)
 
     const bool m_canGrabServer;
     const xcb_visualid_t m_defaultVisualId;
@@ -389,12 +383,10 @@ private:
     QTimer m_focusInTimer;
 
 };
-#if QT_CONFIG(xcb_xinput)
 #if QT_CONFIG(tabletevent)
 Q_DECLARE_TYPEINFO(QXcbConnection::TabletData::ValuatorClassInfo, Q_PRIMITIVE_TYPE);
 Q_DECLARE_TYPEINFO(QXcbConnection::TabletData, Q_MOVABLE_TYPE);
 #endif
-#endif
 
 class QXcbConnectionGrabber
 {
diff --git a/src/plugins/platforms/xcb/qxcbconnection_basic.cpp b/src/plugins/platforms/xcb/qxcbconnection_basic.cpp
index 9a028e5a7e..1ba4b4a1b9 100644
--- a/src/plugins/platforms/xcb/qxcbconnection_basic.cpp
+++ b/src/plugins/platforms/xcb/qxcbconnection_basic.cpp
@@ -45,14 +45,10 @@
 #include <xcb/xfixes.h>
 #include <xcb/xinerama.h>
 #include <xcb/render.h>
-#if QT_CONFIG(xcb_xinput)
 #include <xcb/xinput.h>
-#endif
-#if QT_CONFIG(xkb)
 #define explicit dont_use_cxx_explicit
 #include <xcb/xkb.h>
 #undef explicit
-#endif
 
 #if QT_CONFIG(xcb_xlib)
 #define register        /* C++17 deprecated register */
@@ -138,14 +134,7 @@ QXcbBasicConnection::QXcbBasicConnection(const char *displayName)
 
     xcb_extension_t *extensions[] = {
         &xcb_shm_id, &xcb_xfixes_id, &xcb_randr_id, &xcb_shape_id, &xcb_sync_id,
-        &xcb_render_id,
-#if QT_CONFIG(xkb)
-        &xcb_xkb_id,
-#endif
-#if QT_CONFIG(xcb_xinput)
-        &xcb_input_id,
-#endif
-        0
+        &xcb_render_id, &xcb_xkb_id, &xcb_input_id, 0
     };
 
     for (xcb_extension_t **ext_it = extensions; *ext_it; ++ext_it)
@@ -160,10 +149,8 @@ QXcbBasicConnection::QXcbBasicConnection(const char *displayName)
         initializeXinerama();
     initializeXFixes();
     initializeXRender();
-#if QT_CONFIG(xcb_xinput)
     if (!qEnvironmentVariableIsSet("QT_XCB_NO_XI2"))
         initializeXInput2();
-#endif
     initializeXShape();
     initializeXKB();
 }
@@ -213,7 +200,6 @@ bool QXcbBasicConnection::hasBigRequest() const
     return m_maximumRequestLength > m_setup->maximum_request_length;
 }
 
-#if QT_CONFIG(xcb_xinput)
 // Starting from the xcb version 1.9.3 struct xcb_ge_event_t has changed:
 // - "pad0" became "extension"
 // - "pad1" and "pad" became "pad0"
@@ -240,7 +226,6 @@ bool QXcbBasicConnection::isXIType(xcb_generic_event_t *event, uint16_t type) co
     auto *e = reinterpret_cast<qt_xcb_ge_event_t *>(event);
     return e->event_type == type;
 }
-#endif // QT_CONFIG(xcb_xinput)
 
 bool QXcbBasicConnection::isXFixesType(uint responseType, int eventType) const
 {
@@ -370,7 +355,6 @@ void QXcbBasicConnection::initializeXRandr()
     m_xrandrFirstEvent = reply->first_event;
 }
 
-#if QT_CONFIG(xcb_xinput)
 void QXcbBasicConnection::initializeXInput2()
 {
     const xcb_query_extension_reply_t *reply = xcb_get_extension_data(m_xcbConnection, &xcb_input_id);
@@ -393,7 +377,6 @@ void QXcbBasicConnection::initializeXInput2()
     m_xinputFirstEvent = reply->first_event;
     m_xi2Minor = xinputQuery->minor_version;
 }
-#endif
 
 void QXcbBasicConnection::initializeXShape()
 {
@@ -417,7 +400,6 @@ void QXcbBasicConnection::initializeXShape()
 
 void QXcbBasicConnection::initializeXKB()
 {
-#if QT_CONFIG(xkb)
     const xcb_query_extension_reply_t *reply = xcb_get_extension_data(m_xcbConnection, &xcb_xkb_id);
     if (!reply || !reply->present) {
         qCWarning(lcQpaXcb, "XKeyboard extension not present on the X server");
@@ -439,7 +421,6 @@ void QXcbBasicConnection::initializeXKB()
 
     m_hasXkb = true;
     m_xkbFirstEvent = reply->first_event;
-#endif
 }
 
 QT_END_NAMESPACE
diff --git a/src/plugins/platforms/xcb/qxcbconnection_basic.h b/src/plugins/platforms/xcb/qxcbconnection_basic.h
index 1bd4310562..109186f966 100644
--- a/src/plugins/platforms/xcb/qxcbconnection_basic.h
+++ b/src/plugins/platforms/xcb/qxcbconnection_basic.h
@@ -99,12 +99,10 @@ public:
     bool hasXinerama() const { return m_hasXinerama; }
     bool hasBigRequest() const;
 
-#if QT_CONFIG(xcb_xinput)
     bool isAtLeastXI21() const { return m_xi2Enabled && m_xi2Minor >= 1; }
     bool isAtLeastXI22() const { return m_xi2Enabled && m_xi2Minor >= 2; }
     bool isXIEvent(xcb_generic_event_t *event) const;
     bool isXIType(xcb_generic_event_t *event, uint16_t type) const;
-#endif
 
     bool isXFixesType(uint responseType, int eventType) const;
     bool isXRandrType(uint responseType, int eventType) const;
@@ -119,9 +117,7 @@ protected:
     void initializeXShape();
     void initializeXKB();
     void initializeXSync();
-#if QT_CONFIG(xcb_xinput)
     void initializeXInput2();
-#endif
 
 private:
 #if QT_CONFIG(xcb_xlib)
@@ -147,11 +143,9 @@ private:
     QPair<int, int> m_xrenderVersion;
 
     bool m_xi2Enabled = false;
-#if QT_CONFIG(xcb_xinput)
     int m_xi2Minor = -1;
     int m_xiOpCode = -1;
     uint32_t m_xinputFirstEvent = 0;
-#endif
 
     uint32_t m_xfixesFirstEvent = 0;
     uint32_t m_xrandrFirstEvent = 0;
diff --git a/src/plugins/platforms/xcb/qxcbkeyboard.cpp b/src/plugins/platforms/xcb/qxcbkeyboard.cpp
index d0e02ecdd1..3caee3f409 100644
--- a/src/plugins/platforms/xcb/qxcbkeyboard.cpp
+++ b/src/plugins/platforms/xcb/qxcbkeyboard.cpp
@@ -49,13 +49,7 @@
 
 #include <private/qguiapplication_p.h>
 
-#if QT_CONFIG(xkb)
-#include <xkbcommon/xkbcommon-x11.h>
-#endif
-
-#if QT_CONFIG(xcb_xinput)
 #include <xcb/xinput.h>
-#endif
 
 QT_BEGIN_NAMESPACE
 
@@ -392,20 +386,16 @@ void QXcbKeyboard::updateKeymap()
         xkb_context_set_log_level(m_xkbContext.get(), logLevel);
     }
 
-#if QT_CONFIG(xkb)
     if (connection()->hasXKB()) {
         m_xkbKeymap.reset(xkb_x11_keymap_new_from_device(m_xkbContext.get(), xcb_connection(),
                                                          core_device_id, XKB_KEYMAP_COMPILE_NO_FLAGS));
         if (m_xkbKeymap)
             m_xkbState.reset(xkb_x11_state_new_from_device(m_xkbKeymap.get(), xcb_connection(), core_device_id));
     } else {
-#endif
         m_xkbKeymap.reset(keymapFromCore(keysymMods));
         if (m_xkbKeymap)
             m_xkbState.reset(xkb_state_new(m_xkbKeymap.get()));
-#if QT_CONFIG(xkb)
     }
-#endif
 
     if (!m_xkbKeymap) {
         qCWarning(lcQpaKeyboard, "failed to compile a keymap");
@@ -428,7 +418,6 @@ QList<int> QXcbKeyboard::possibleKeys(const QKeyEvent *event) const
     return QXkbCommon::possibleKeys(m_xkbState.get(), event, m_superAsMeta, m_hyperAsMeta);
 }
 
-#if QT_CONFIG(xkb)
 void QXcbKeyboard::updateXKBState(xcb_xkb_state_notify_event_t *state)
 {
     if (m_config && connection()->hasXKB()) {
@@ -444,7 +433,6 @@ void QXcbKeyboard::updateXKBState(xcb_xkb_state_notify_event_t *state)
         handleStateChanges(changedComponents);
     }
 }
-#endif
 
 static xkb_layout_index_t lockedGroup(quint16 state)
 {
@@ -473,7 +461,6 @@ void QXcbKeyboard::updateXKBStateFromCore(quint16 state)
     }
 }
 
-#if QT_CONFIG(xcb_xinput)
 void QXcbKeyboard::updateXKBStateFromXI(void *modInfo, void *groupInfo)
 {
     if (m_config && !connection()->hasXKB()) {
@@ -491,7 +478,6 @@ void QXcbKeyboard::updateXKBStateFromXI(void *modInfo, void *groupInfo)
         handleStateChanges(changedComponents);
     }
 }
-#endif
 
 void QXcbKeyboard::handleStateChanges(xkb_state_component changedComponents)
 {
@@ -541,7 +527,6 @@ void QXcbKeyboard::updateXKBMods()
 QXcbKeyboard::QXcbKeyboard(QXcbConnection *connection)
     : QXcbObject(connection)
 {
-#if QT_CONFIG(xkb)
     core_device_id = 0;
     if (connection->hasXKB()) {
         selectEvents();
@@ -551,11 +536,9 @@ QXcbKeyboard::QXcbKeyboard(QXcbConnection *connection)
             return;
         }
     } else {
-#endif
         m_key_symbols = xcb_key_symbols_alloc(xcb_connection());
-#if QT_CONFIG(xkb)
     }
-#endif
+
     updateKeymap();
 }
 
@@ -573,7 +556,6 @@ void QXcbKeyboard::initialize()
 
 void QXcbKeyboard::selectEvents()
 {
-#if QT_CONFIG(xkb)
     const uint16_t required_map_parts = (XCB_XKB_MAP_PART_KEY_TYPES |
         XCB_XKB_MAP_PART_KEY_SYMS |
         XCB_XKB_MAP_PART_MODIFIER_MAP |
@@ -604,12 +586,10 @@ void QXcbKeyboard::selectEvents()
         free(error);
         qCWarning(lcQpaXcb, "failed to select notify events from XKB");
     }
-#endif
 }
 
 void QXcbKeyboard::updateVModMapping()
 {
-#if QT_CONFIG(xkb)
     xcb_xkb_get_names_value_list_t names_list;
 
     memset(&vmod_masks, 0, sizeof(vmod_masks));
@@ -667,12 +647,10 @@ void QXcbKeyboard::updateVModMapping()
         else if (qstrcmp(vmod_name, "Hyper") == 0)
             vmod_masks.hyper = bit;
     }
-#endif
 }
 
 void QXcbKeyboard::updateVModToRModMapping()
 {
-#if QT_CONFIG(xkb)
     xcb_xkb_get_map_map_t map;
 
     memset(&rmod_masks, 0, sizeof(rmod_masks));
@@ -729,7 +707,6 @@ void QXcbKeyboard::updateVModToRModMapping()
         else if (vmod_masks.hyper == bit)
             rmod_masks.hyper = modmap;
     }
-#endif
 }
 
 // Small helper: set modifier bit, if modifier position is valid
diff --git a/src/plugins/platforms/xcb/qxcbkeyboard.h b/src/plugins/platforms/xcb/qxcbkeyboard.h
index e35c82ad24..0ee08aeff2 100644
--- a/src/plugins/platforms/xcb/qxcbkeyboard.h
+++ b/src/plugins/platforms/xcb/qxcbkeyboard.h
@@ -43,14 +43,12 @@
 #include "qxcbobject.h"
 
 #include <xcb/xcb_keysyms.h>
-#if QT_CONFIG(xkb)
 #define explicit dont_use_cxx_explicit
 #include <xcb/xkb.h>
 #undef explicit
-#endif
 
-#include <xkbcommon/xkbcommon.h>
 #include <QtXkbCommonSupport/private/qxkbcommon_p.h>
+#include <xkbcommon/xkbcommon-x11.h>
 
 #include <QEvent>
 
@@ -74,18 +72,14 @@ public:
     void updateKeymap();
     QList<int> possibleKeys(const QKeyEvent *event) const;
 
-    // when XKEYBOARD not present on the X server
     void updateXKBMods();
     xkb_mod_mask_t xkbModMask(quint16 state);
     void updateXKBStateFromCore(quint16 state);
-#if QT_CONFIG(xcb_xinput)
     void updateXKBStateFromXI(void *modInfo, void *groupInfo);
-#endif
-#if QT_CONFIG(xkb)
-    // when XKEYBOARD is present on the X server
+
     int coreDeviceId() const { return core_device_id; }
     void updateXKBState(xcb_xkb_state_notify_event_t *state);
-#endif
+
     void handleStateChanges(xkb_state_component changedComponents);
 
 protected:
@@ -97,10 +91,9 @@ protected:
     typedef QMap<xcb_keysym_t, int> KeysymModifierMap;
     struct xkb_keymap *keymapFromCore(const KeysymModifierMap &keysymMods);
 
-    // when XKEYBOARD not present on the X server
     void updateModifiers(const KeysymModifierMap &keysymMods);
     KeysymModifierMap keysymsToModifiers();
-    // when XKEYBOARD is present on the X server
+
     void updateVModMapping();
     void updateVModToRModMapping();
 
@@ -119,7 +112,6 @@ private:
 
     _mod_masks rmod_masks;
 
-    // when XKEYBOARD not present on the X server
     xcb_key_symbols_t *m_key_symbols = nullptr;
     struct _xkb_mods {
         xkb_mod_index_t shift;
@@ -132,11 +124,9 @@ private:
         xkb_mod_index_t mod5;
     };
     _xkb_mods xkb_mods;
-#if QT_CONFIG(xkb)
-    // when XKEYBOARD is present on the X server
+
     _mod_masks vmod_masks;
     int core_device_id;
-#endif
 
     QXkbCommon::ScopedXKBState m_xkbState;
     QXkbCommon::ScopedXKBKeymap m_xkbKeymap;
diff --git a/src/plugins/platforms/xcb/qxcbwindow.cpp b/src/plugins/platforms/xcb/qxcbwindow.cpp
index 97da420798..76d3545d35 100644
--- a/src/plugins/platforms/xcb/qxcbwindow.cpp
+++ b/src/plugins/platforms/xcb/qxcbwindow.cpp
@@ -67,9 +67,7 @@
 #include <xcb/xcb_icccm.h>
 #include <xcb/xfixes.h>
 #include <xcb/shape.h>
-#if QT_CONFIG(xcb_xinput)
 #include <xcb/xinput.h>
-#endif
 
 #include <private/qguiapplication_p.h>
 #include <private/qwindow_p.h>
@@ -492,14 +490,12 @@ void QXcbWindow::create()
                         atom(QXcbAtom::_XEMBED_INFO),
                         32, 2, (void *)data);
 
-#if QT_CONFIG(xcb_xinput)
     if (connection()->hasXInput2()) {
         if (connection()->xi2MouseEventsDisabled())
             connection()->xi2SelectDeviceEventsCompatibility(m_window);
         else
             connection()->xi2SelectDeviceEvents(m_window);
     }
-#endif
 
     setWindowState(window()->windowStates());
     setWindowFlags(window()->flags());
@@ -1895,9 +1891,7 @@ void QXcbWindow::handleButtonPressEvent(int event_x, int event_y, int root_x, in
     QPoint global(root_x, root_y);
 
     if (isWheel) {
-#if QT_CONFIG(xcb_xinput)
         if (!connection()->isAtLeastXI21()) {
-#endif
             QPoint angleDelta;
             if (detail == 4)
                 angleDelta.setY(120);
@@ -1910,9 +1904,7 @@ void QXcbWindow::handleButtonPressEvent(int event_x, int event_y, int root_x, in
             if (modifiers & Qt::AltModifier)
                 angleDelta = angleDelta.transposed();
             QWindowSystemInterface::handleWheelEvent(window(), timestamp, local, global, QPoint(), angleDelta, modifiers);
-#if QT_CONFIG(xcb_xinput)
         }
-#endif
         return;
     }
 
@@ -1948,13 +1940,8 @@ static inline bool doCheckUnGrabAncestor(QXcbConnection *conn)
      * not pressed, otherwise (e.g. on Alt+Tab) it can igonre important enter/leave events.
     */
     if (conn) {
-
         const bool mouseButtonsPressed = (conn->buttonState() != Qt::NoButton);
-#if QT_CONFIG(xcb_xinput)
         return mouseButtonsPressed || (conn->hasXInput2() && !conn->xi2MouseEventsDisabled());
-#else
-        return mouseButtonsPressed;
-#endif
     }
     return true;
 }
@@ -1986,10 +1973,9 @@ void QXcbWindow::handleEnterNotifyEvent(int event_x, int event_y, int root_x, in
 
     if (ignoreEnterEvent(mode, detail, connection()) || connection()->mousePressWindow())
         return;
-#if QT_CONFIG(xcb_xinput)
+
     // Updates scroll valuators, as user might have done some scrolling outside our X client.
     connection()->xi2UpdateScrollingDevices();
-#endif
 
     const QPoint local(event_x, event_y);
     QWindowSystemInterface::handleEnterEvent(window(), local, global);
@@ -2064,7 +2050,6 @@ void QXcbWindow::handleMotionNotifyEvent(const xcb_motion_notify_event_t *event)
                             event->time, QEvent::MouseMove);
 }
 
-#if QT_CONFIG(xcb_xinput)
 static inline int fixed1616ToInt(xcb_input_fp1616_t val)
 {
     return int(qreal(val) / 0x10000);
@@ -2165,7 +2150,6 @@ void QXcbWindow::handleXIEnterLeave(xcb_ge_event_t *event)
         break;
     }
 }
-#endif
 
 QXcbWindow *QXcbWindow::toWindow() { return this; }
 
@@ -2301,14 +2285,12 @@ bool QXcbWindow::setMouseGrabEnabled(bool grab)
     if (grab && !connection()->canGrab())
         return false;
 
-#if QT_CONFIG(xcb_xinput)
     if (connection()->hasXInput2() && !connection()->xi2MouseEventsDisabled()) {
         bool result = connection()->xi2SetMouseGrabEnabled(m_window, grab);
         if (grab && result)
             connection()->setMouseGrabber(this);
         return result;
     }
-#endif
 
     if (!grab) {
         xcb_ungrab_pointer(xcb_connection(), XCB_TIME_CURRENT_TIME);
@@ -2376,7 +2358,7 @@ bool QXcbWindow::startSystemMoveResize(const QPoint &pos, int corner)
         return false;
 
     const QPoint globalPos = QHighDpi::toNativePixels(window()->mapToGlobal(pos), window()->screen());
-#if QT_CONFIG(xcb_xinput)
+
     // ### FIXME QTBUG-53389
     bool startedByTouch = connection()->startSystemMoveResizeForTouchBegin(m_window, globalPos, corner);
     if (startedByTouch) {
@@ -2386,9 +2368,7 @@ bool QXcbWindow::startSystemMoveResize(const QPoint &pos, int corner)
             return false;
         }
         // KWin, Openbox, AwesomeWM have been tested to work with _NET_WM_MOVERESIZE.
-    } else
-#endif
-    { // Started by mouse press.
+    } else { // Started by mouse press.
         if (connection()->isUnity())
             return false; // _NET_WM_MOVERESIZE on this WM is bouncy (WM bug?).
 
diff --git a/src/plugins/platforms/xcb/qxcbwindow.h b/src/plugins/platforms/xcb/qxcbwindow.h
index 5de5974ca7..13b37db028 100644
--- a/src/plugins/platforms/xcb/qxcbwindow.h
+++ b/src/plugins/platforms/xcb/qxcbwindow.h
@@ -137,10 +137,8 @@ public:
     void handleFocusInEvent(const xcb_focus_in_event_t *event) override;
     void handleFocusOutEvent(const xcb_focus_out_event_t *event) override;
     void handlePropertyNotifyEvent(const xcb_property_notify_event_t *event) override;
-#if QT_CONFIG(xcb_xinput)
     void handleXIMouseEvent(xcb_ge_event_t *, Qt::MouseEventSource source = Qt::MouseEventNotSynthesized) override;
     void handleXIEnterLeave(xcb_ge_event_t *) override;
-#endif
 
     QXcbWindow *toWindow() override;
 
diff --git a/src/plugins/platforms/xcb/xcb-static/xcb-static.pro b/src/plugins/platforms/xcb/xcb-static/xcb-static.pro
deleted file mode 100644
index 078b275381..0000000000
--- a/src/plugins/platforms/xcb/xcb-static/xcb-static.pro
+++ /dev/null
@@ -1,80 +0,0 @@
-#
-# Statically compile in code for
-# libxcb-fixes, libxcb-randr, libxcb-shm, libxcb-sync, libxcb-image,
-# libxcb-keysyms, libxcb-icccm, libxcb-renderutil, libxcb-xkb,
-# libxcb-xinerama, libxcb-xinput
-#
-CONFIG += static
-
-XCB_DIR = $$QT_SOURCE_TREE/src/3rdparty/xcb
-
-MODULE_INCLUDEPATH += $$XCB_DIR/include $$XCB_DIR/sysinclude
-INCLUDEPATH += $$XCB_DIR/include/xcb
-
-QMAKE_USE += xcb/nolink
-
-# ignore compiler warnings in 3rdparty code
-QMAKE_CFLAGS_STATIC_LIB+=-w
-
-#
-# libxcb
-#
-LIBXCB_DIR = $$XCB_DIR/libxcb
-
-SOURCES += \
-    $$LIBXCB_DIR/xfixes.c \
-    $$LIBXCB_DIR/randr.c \
-    $$LIBXCB_DIR/shm.c \
-    $$LIBXCB_DIR/sync.c \
-    $$LIBXCB_DIR/render.c \
-    $$LIBXCB_DIR/shape.c \
-    $$LIBXCB_DIR/xkb.c \
-    $$LIBXCB_DIR/xinerama.c \
-    $$LIBXCB_DIR/xinput.c
-
-#
-# xcb-util
-#
-XCB_UTIL_DIR = $$XCB_DIR/xcb-util
-
-
-SOURCES += \
-    $$XCB_UTIL_DIR/xcb_aux.c \
-    $$XCB_UTIL_DIR/atoms.c \
-    $$XCB_UTIL_DIR/event.c
-
-#
-# xcb-util-image
-#
-XCB_IMAGE_DIR = $$XCB_DIR/xcb-util-image
-
-SOURCES += $$XCB_IMAGE_DIR/xcb_image.c
-
-#
-# xcb-util-keysyms
-#
-XCB_KEYSYMS_DIR = $$XCB_DIR/xcb-util-keysyms
-
-SOURCES += $$XCB_KEYSYMS_DIR/keysyms.c
-
-#
-# xcb-util-renderutil
-#
-
-XCB_RENDERUTIL_DIR = $$XCB_DIR/xcb-util-renderutil
-
-SOURCES += $$XCB_RENDERUTIL_DIR/util.c
-
-#
-# xcb-util-wm
-#
-XCB_WM_DIR = $$XCB_DIR/xcb-util-wm
-
-SOURCES += \
-    $$XCB_WM_DIR/icccm.c
-
-OTHER_FILES = $$XCB_DIR/README
-
-TR_EXCLUDE += $$XCB_DIR/*
-
-load(qt_helper_lib)
diff --git a/src/plugins/platforms/xcb/xcb.pro b/src/plugins/platforms/xcb/xcb.pro
index 0d27645a60..1c43c5ca04 100644
--- a/src/plugins/platforms/xcb/xcb.pro
+++ b/src/plugins/platforms/xcb/xcb.pro
@@ -2,8 +2,6 @@ TEMPLATE = subdirs
 CONFIG += ordered
 QT_FOR_CONFIG += gui-private
 
-!qtConfig(system-xcb): SUBDIRS += xcb-static
-
 SUBDIRS += xcb_qpa_lib.pro
 SUBDIRS += xcb-plugin.pro
 SUBDIRS += gl_integrations
diff --git a/src/plugins/platforms/xcb/xcb_qpa_lib.pro b/src/plugins/platforms/xcb/xcb_qpa_lib.pro
index 34c671c8c7..a5d05faa9c 100644
--- a/src/plugins/platforms/xcb/xcb_qpa_lib.pro
+++ b/src/plugins/platforms/xcb/xcb_qpa_lib.pro
@@ -35,6 +35,7 @@ SOURCES = \
         qxcbeventdispatcher.cpp \
         qxcbconnection_basic.cpp \
         qxcbconnection_screens.cpp \
+        qxcbconnection_xi2.cpp \
         qxcbatom.cpp
 
 HEADERS = \
@@ -71,10 +72,6 @@ qtConfig(xcb-xlib) {
     QMAKE_USE += xcb_xlib
 }
 
-qtConfig(xcb-xinput) {
-    SOURCES += qxcbconnection_xi2.cpp
-}
-
 qtConfig(xcb-sm) {
     QMAKE_USE += x11sm
     SOURCES += qxcbsessionmanager.cpp
@@ -94,20 +91,19 @@ qtConfig(vulkan) {
         qxcbvulkanwindow.h
 }
 
-!qtConfig(system-xcb) {
-    QMAKE_USE += xcb-static
-} else {
-    qtConfig(xcb-xinput): QMAKE_USE += xcb_xinput
-    QMAKE_USE += \
-        xcb_icccm xcb_image xcb_keysyms xcb_randr xcb_render xcb_renderutil \
-        xcb_shape xcb_shm xcb_sync xcb_xfixes xcb_xinerama
-}
-QMAKE_USE += xcb
+QMAKE_USE += \
+    xcb xcb_icccm xcb_image xcb_keysyms xcb_randr xcb_render xcb_renderutil \
+    xcb_shape xcb_shm xcb_sync xcb_xfixes xcb_xinerama xcb_xkb xkbcommon xkbcommon_x11
 
-QMAKE_USE += xkbcommon
-qtConfig(xkb) {
-    QMAKE_USE += xkbcommon_x11
-    qtConfig(system-xcb): QMAKE_USE += xcb_xkb
+qtConfig(system-xcb-xinput) {
+    QMAKE_USE += xcb_xinput
+} else {
+    # Use bundled xcb-xinput sources.
+    XCB_DIR = $$QT_SOURCE_TREE/src/3rdparty/xcb
+    INCLUDEPATH += $$XCB_DIR/include/
+    SOURCES += $$XCB_DIR/libxcb/xinput.c
+    # Ignore compiler warnings in 3rdparty C code.
+    QMAKE_CFLAGS+=-w
 }
 
 qtConfig(dlopen): QMAKE_USE += libdl