Advance Wayland and KDE package bring-up

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

local/recipes/kde/kwin/source/src/utils/softwarevsyncmonitor.h

@@ -0,0 +1,47 @@
+/*
+    SPDX-FileCopyrightText: 2020 Vlad Zahorodnii <vlad.zahorodnii@kde.org>
+
+    SPDX-License-Identifier: GPL-2.0-or-later
+*/
+
+#pragma once
+
+#include "utils/vsyncmonitor.h"
+
+#include <QTimer>
+#include <memory>
+
+namespace KWin
+{
+
+/**
+ * The SoftwareVsyncMonitor class provides synthetic vblank events with constant interval.
+ *
+ * The software vsync monitor can never fail and it is always available. It can be used as
+ * fallback if hardware based approaches to monitor vsync events are unavailable.
+ *
+ * The vblank interval can be changed by calling the setRefreshRate() function.
+ */
+class KWIN_EXPORT SoftwareVsyncMonitor : public VsyncMonitor
+{
+    Q_OBJECT
+
+public:
+    static std::unique_ptr<SoftwareVsyncMonitor> create();
+
+    int refreshRate() const;
+    void setRefreshRate(int refreshRate);
+
+public Q_SLOTS:
+    void arm() override;
+
+private:
+    explicit SoftwareVsyncMonitor();
+    void handleSyntheticVsync();
+
+    QTimer m_softwareClock;
+    int m_refreshRate = 60000;
+    std::chrono::nanoseconds m_vblankTimestamp = std::chrono::nanoseconds::zero();
+};
+
+} // namespace KWin