From 2d4b07753407af18e05f53e7e39431a67dfc9fe9 Mon Sep 17 00:00:00 2001
From: JiDe Zhang <zhangjide@uniontech.com>
Date: Tue, 16 Jan 2024 17:18:19 +0800
Subject: [PATCH] Disable client side decorations on Vulkan window

Fixes: QTBUG-120950
Change-Id: I22a78691bd09093432e5d11a72e3abbeadf36cf2
Reviewed-by: David Edmundson <davidedmundson@kde.org>
---
 src/plugins/platforms/wayland/qwaylandwindow.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/plugins/platforms/wayland/qwaylandwindow.cpp b/src/plugins/platforms/wayland/qwaylandwindow.cpp
index 672ddc5b169..75942a238f4 100644
--- a/src/plugins/platforms/wayland/qwaylandwindow.cpp
+++ b/src/plugins/platforms/wayland/qwaylandwindow.cpp
@@ -1043,6 +1043,9 @@ bool QWaylandWindow::createDecoration()
 {
     Q_ASSERT_X(QThread::currentThreadId() == QThreadData::get2(thread())->threadId.loadRelaxed(),
                "QWaylandWindow::createDecoration", "not called from main thread");
+    // TODO: client side decorations do not work with Vulkan backend.
+    if (window()->surfaceType() == QSurface::VulkanSurface)
+        return false;
     if (!mDisplay->supportsWindowDecoration())
         return false;