diff --git a/qtwayland_5_12_8/0005-set-size-hints.patch b/qtwayland_5_12_8/0005-set-size-hints.patch
new file mode 100644
index 0000000..7a9bc79
--- /dev/null
+++ b/qtwayland_5_12_8/0005-set-size-hints.patch
@@ -0,0 +1,202 @@
+diff --git a/src/client/qwaylandshellsurface_p.h b/src/client/qwaylandshellsurface_p.h
+index c4f5512b..873193ae 100644
+--- a/src/client/qwaylandshellsurface_p.h
++++ b/src/client/qwaylandshellsurface_p.h
+@@ -97,6 +97,8 @@ public:
+     virtual void requestWindowStates(Qt::WindowStates states) {Q_UNUSED(states);}
+     virtual bool wantsDecorations() const { return false; }
+ 
++    virtual void propagateSizeHints() {}
++
+ private:
+     QWaylandWindow *m_window = nullptr;
+     friend class QWaylandWindow;
+diff --git a/src/client/qwaylandwindow.cpp b/src/client/qwaylandwindow.cpp
+index fed632b2..39cc5847 100644
+--- a/src/client/qwaylandwindow.cpp
++++ b/src/client/qwaylandwindow.cpp
+@@ -616,6 +616,11 @@ void QWaylandWindow::commit(QWaylandBuffer *buffer, const QRegion &damage)
+     wl_surface::commit();
+ }
+ 
++void QWaylandWindow::commit()
++{
++    wl_surface::commit();
++}
++
+ const wl_callback_listener QWaylandWindow::callbackListener = {
+     [](void *data, wl_callback *callback, uint32_t time) {
+         Q_UNUSED(callback);
+@@ -1195,6 +1200,12 @@ void QWaylandWindow::addAttachOffset(const QPoint point)
+     mOffset += point;
+ }
+ 
++void QWaylandWindow::propagateSizeHints()
++{
++    if (mShellSurface)
++        mShellSurface->propagateSizeHints();
++}
++
+ bool QWaylandWindow::startSystemResize(Qt::Edges edges)
+ {
+     if (auto *seat = display()->lastInputDevice())
+diff --git a/src/client/qwaylandwindow_p.h b/src/client/qwaylandwindow_p.h
+index 4242f3a8..a40b6c97 100644
+--- a/src/client/qwaylandwindow_p.h
++++ b/src/client/qwaylandwindow_p.h
+@@ -122,6 +122,8 @@ public:
+     void handleExpose(const QRegion &region);
+     void commit(QWaylandBuffer *buffer, const QRegion &damage);
+ 
++    void commit();
++
+     bool waitForFrameSync(int timeout);
+ 
+     QMargins frameMargins() const override;
+@@ -188,7 +190,7 @@ public:
+     QWaylandShmBackingStore *backingStore() const { return mBackingStore; }
+ 
+     bool setKeyboardGrabEnabled(bool) override { return false; }
+-    void propagateSizeHints() override { }
++    void propagateSizeHints() override;
+     void addAttachOffset(const QPoint point);
+ 
+     bool startSystemResize(Qt::Edges edges) override;
+diff --git a/src/plugins/shellintegration/xdg-shell-v6/qwaylandxdgshellv6.cpp b/src/plugins/shellintegration/xdg-shell-v6/qwaylandxdgshellv6.cpp
+index 4491b94b..ba3b5671 100644
+--- a/src/plugins/shellintegration/xdg-shell-v6/qwaylandxdgshellv6.cpp
++++ b/src/plugins/shellintegration/xdg-shell-v6/qwaylandxdgshellv6.cpp
+@@ -46,6 +46,8 @@
+ #include <QtWaylandClient/private/qwaylandscreen_p.h>
+ #include <QtWaylandClient/private/qwaylandabstractdecoration_p.h>
+ 
++#include <QtGui/private/qwindow_p.h>
++
+ QT_BEGIN_NAMESPACE
+ 
+ namespace QtWaylandClient {
+@@ -94,6 +96,9 @@ void QWaylandXdgSurfaceV6::Toplevel::applyConfigure()
+ 
+     QSize windowGeometrySize = m_xdgSurface->m_window->window()->frameGeometry().size();
+     m_xdgSurface->set_window_geometry(0, 0, windowGeometrySize.width(), windowGeometrySize.height());
++
++    m_xdgSurface->setSizeHints();
++
+     m_applied = m_pending;
+     qCDebug(lcQpaWayland) << "Applied pending zxdg_toplevel_v6 configure event:" << m_applied.size << m_applied.states;
+ }
+@@ -298,6 +303,31 @@ bool QWaylandXdgSurfaceV6::wantsDecorations() const
+     return m_toplevel && !(m_toplevel->m_pending.states & Qt::WindowFullScreen);
+ }
+ 
++void QWaylandXdgSurfaceV6::propagateSizeHints()
++{
++    setSizeHints();
++
++    if (m_toplevel && m_window)
++        m_window->commit();
++}
++
++void QWaylandXdgSurfaceV6::setSizeHints()
++{
++    if (m_toplevel && m_window) {
++        const int minWidth = qMax(0, m_window->windowMinimumSize().width());
++        const int minHeight = qMax(0, m_window->windowMinimumSize().height());
++        m_toplevel->set_min_size(minWidth, minHeight);
++
++        int maxWidth = qMax(0, m_window->windowMaximumSize().width());
++        if (maxWidth == QWINDOWSIZE_MAX)
++            maxWidth = 0;
++        int maxHeight = qMax(0, m_window->windowMaximumSize().height());
++        if (maxHeight == QWINDOWSIZE_MAX)
++            maxHeight = 0;
++        m_toplevel->set_max_size(maxWidth, maxHeight);
++    }
++}
++
+ void QWaylandXdgSurfaceV6::requestWindowStates(Qt::WindowStates states)
+ {
+     if (m_toplevel)
+diff --git a/src/plugins/shellintegration/xdg-shell-v6/qwaylandxdgshellv6_p.h b/src/plugins/shellintegration/xdg-shell-v6/qwaylandxdgshellv6_p.h
+index eb49119e..a93292ae 100644
+--- a/src/plugins/shellintegration/xdg-shell-v6/qwaylandxdgshellv6_p.h
++++ b/src/plugins/shellintegration/xdg-shell-v6/qwaylandxdgshellv6_p.h
+@@ -89,6 +89,9 @@ public:
+     bool handlesActiveState() const { return m_toplevel; }
+     void applyConfigure() override;
+     bool wantsDecorations() const override;
++    void propagateSizeHints() override;
++
++    void setSizeHints();
+ 
+ protected:
+     void requestWindowStates(Qt::WindowStates states) override;
+diff --git a/src/plugins/shellintegration/xdg-shell/qwaylandxdgshell.cpp b/src/plugins/shellintegration/xdg-shell/qwaylandxdgshell.cpp
+index c5ad57ab..5884f772 100644
+--- a/src/plugins/shellintegration/xdg-shell/qwaylandxdgshell.cpp
++++ b/src/plugins/shellintegration/xdg-shell/qwaylandxdgshell.cpp
+@@ -46,6 +46,8 @@
+ #include <QtWaylandClient/private/qwaylandscreen_p.h>
+ #include <QtWaylandClient/private/qwaylandabstractdecoration_p.h>
+ 
++#include <QtGui/private/qwindow_p.h>
++
+ QT_BEGIN_NAMESPACE
+ 
+ namespace QtWaylandClient {
+@@ -104,6 +106,9 @@ void QWaylandXdgSurface::Toplevel::applyConfigure()
+ 
+     QSize windowGeometrySize = m_xdgSurface->m_window->window()->frameGeometry().size();
+     m_xdgSurface->set_window_geometry(0, 0, windowGeometrySize.width(), windowGeometrySize.height());
++
++    m_xdgSurface->setSizeHints();
++
+     m_applied = m_pending;
+     qCDebug(lcQpaWayland) << "Applied pending xdg_toplevel configure event:" << m_applied.size << m_applied.states;
+ }
+@@ -332,6 +337,31 @@ bool QWaylandXdgSurface::wantsDecorations() const
+     return m_toplevel && m_toplevel->wantsDecorations();
+ }
+ 
++void QWaylandXdgSurface::propagateSizeHints()
++{
++    setSizeHints();
++
++    if (m_toplevel && m_window)
++        m_window->commit();
++}
++
++void QWaylandXdgSurface::setSizeHints()
++{
++    if (m_toplevel && m_window) {
++        const int minWidth = qMax(0, m_window->windowMinimumSize().width());
++        const int minHeight = qMax(0, m_window->windowMinimumSize().height());
++        m_toplevel->set_min_size(minWidth, minHeight);
++
++        int maxWidth = qMax(0, m_window->windowMaximumSize().width());
++        if (maxWidth == QWINDOWSIZE_MAX)
++            maxWidth = 0;
++        int maxHeight = qMax(0, m_window->windowMaximumSize().height());
++        if (maxHeight == QWINDOWSIZE_MAX)
++            maxHeight = 0;
++        m_toplevel->set_max_size(maxWidth, maxHeight);
++    }
++}
++
+ void QWaylandXdgSurface::requestWindowStates(Qt::WindowStates states)
+ {
+     if (m_toplevel)
+diff --git a/src/plugins/shellintegration/xdg-shell/qwaylandxdgshell_p.h b/src/plugins/shellintegration/xdg-shell/qwaylandxdgshell_p.h
+index a791ce7f..23c3b135 100644
+--- a/src/plugins/shellintegration/xdg-shell/qwaylandxdgshell_p.h
++++ b/src/plugins/shellintegration/xdg-shell/qwaylandxdgshell_p.h
+@@ -93,6 +93,9 @@ public:
+     bool handlesActiveState() const { return m_toplevel; }
+     void applyConfigure() override;
+     bool wantsDecorations() const override;
++    void propagateSizeHints() override;
++
++    void setSizeHints();
+ 
+ protected:
+     void requestWindowStates(Qt::WindowStates states) override;