diff --git a/src/qt/qt_mainwindow.cpp b/src/qt/qt_mainwindow.cpp
index d15151039..ac2f18e32 100644
--- a/src/qt/qt_mainwindow.cpp
+++ b/src/qt/qt_mainwindow.cpp
@@ -1453,6 +1453,10 @@ void MainWindow::keyPressEvent(QKeyEvent* event)
 {
     if (send_keyboard_input && !(kbd_req_capture && !mouse_capture && !video_fullscreen))
     {
+        // Windows keys in Qt have one-to-one mapping.
+        if (event->key() == Qt::Key_Super_L || event->key() == Qt::Key_Super_R) {
+            keyboard_input(1, event->key() == Qt::Key_Super_L ? 0x15B : 0x15C);
+        } else
 #ifdef Q_OS_MACOS
         processMacKeyboardInput(true, event);
 #else
@@ -1480,6 +1484,9 @@ void MainWindow::keyReleaseEvent(QKeyEvent* event)
     if (!send_keyboard_input)
         return;
 
+    if (event->key() == Qt::Key_Super_L || event->key() == Qt::Key_Super_R) {
+        keyboard_input(0, event->key() == Qt::Key_Super_L ? 0x15B : 0x15C);
+    } else
 #ifdef Q_OS_MACOS
     processMacKeyboardInput(false, event);
 #else
diff --git a/src/qt/qt_vulkanrenderer.cpp b/src/qt/qt_vulkanrenderer.cpp
index e820e3a11..c62154669 100644
--- a/src/qt/qt_vulkanrenderer.cpp
+++ b/src/qt/qt_vulkanrenderer.cpp
@@ -964,10 +964,10 @@ void VulkanRenderer2::startNextFrame()
     m_devFuncs->vkCmdBindVertexBuffers(cb, 0, 1, &m_buf, &vbOffset);
 
     VkViewport viewport;
-    viewport.x = destination.x();
-    viewport.y = destination.y();
-    viewport.width = destination.width();
-    viewport.height = destination.height();
+    viewport.x = destination.x() * m_window->devicePixelRatio();
+    viewport.y = destination.y() * m_window->devicePixelRatio();
+    viewport.width = destination.width() * m_window->devicePixelRatio();
+    viewport.height = destination.height() * m_window->devicePixelRatio();
     viewport.minDepth = 0;
     viewport.maxDepth = 1;
     m_devFuncs->vkCmdSetViewport(cb, 0, 1, &viewport);
diff --git a/src/qt/qt_vulkanwindowrenderer.cpp b/src/qt/qt_vulkanwindowrenderer.cpp
index 4563bd349..bd9f9d66f 100644
--- a/src/qt/qt_vulkanwindowrenderer.cpp
+++ b/src/qt/qt_vulkanwindowrenderer.cpp
@@ -797,6 +797,7 @@ VulkanWindowRenderer::VulkanWindowRenderer(QWidget* parent)
     parentWidget = parent;
     instance.setLayers(QByteArrayList() << "VK_LAYER_KHRONOS_validation");
     instance.setExtensions(QByteArrayList() << "VK_EXT_debug_report");
+    instance.setApiVersion(QVersionNumber(1, 0));
     if (!instance.create()) {
         throw std::runtime_error("Could not create Vulkan instance");
     }
@@ -808,6 +809,7 @@ VulkanWindowRenderer::VulkanWindowRenderer(QWidget* parent)
     qDebug() << instance.layers();
     setVulkanInstance(&instance);
     setPhysicalDeviceIndex(0);
+    setPreferredColorFormats({VK_FORMAT_B8G8R8A8_UNORM, VK_FORMAT_R8G8B8A8_UNORM, VK_FORMAT_A8B8G8R8_UNORM_PACK32});
     setFlags(Flag::PersistentResources);
     buf_usage = std::vector<std::atomic_flag>(1);
     buf_usage[0].clear();