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();