diff --git a/dlls/d3d8/device.c b/dlls/d3d8/device.c
index 22d3b88512a..62a8e70c3dd 100644
--- a/dlls/d3d8/device.c
+++ b/dlls/d3d8/device.c
@@ -421,7 +421,7 @@ static HRESULT WINAPI d3d8_device_GetDisplayMode(IDirect3DDevice8 *iface, D3DDIS
     TRACE("iface %p, mode %p.\n", iface, mode);
 
     wined3d_mutex_lock();
-    hr = wined3d_device_get_display_mode(device->wined3d_device, 0, &wined3d_mode);
+    hr = wined3d_device_get_display_mode(device->wined3d_device, 0, &wined3d_mode, NULL);
     wined3d_mutex_unlock();
 
     if (SUCCEEDED(hr))
diff --git a/dlls/d3d9/device.c b/dlls/d3d9/device.c
index 44f64903dc4..d4256fc4711 100644
--- a/dlls/d3d9/device.c
+++ b/dlls/d3d9/device.c
@@ -363,7 +363,7 @@ static HRESULT WINAPI d3d9_device_GetDisplayMode(IDirect3DDevice9Ex *iface, UINT
     TRACE("iface %p, swapchain %u, mode %p.\n", iface, swapchain, mode);
 
     wined3d_mutex_lock();
-    hr = wined3d_device_get_display_mode(device->wined3d_device, swapchain, &wined3d_mode);
+    hr = wined3d_device_get_display_mode(device->wined3d_device, swapchain, &wined3d_mode, NULL);
     wined3d_mutex_unlock();
 
     if (SUCCEEDED(hr))
@@ -2930,12 +2930,34 @@ static HRESULT WINAPI d3d9_device_ResetEx(IDirect3DDevice9Ex *iface,
     return E_NOTIMPL;
 }
 
-static HRESULT  WINAPI  d3d9_device_GetDisplayModeEx(IDirect3DDevice9Ex *iface,
+static HRESULT WINAPI d3d9_device_GetDisplayModeEx(IDirect3DDevice9Ex *iface,
         UINT swapchain_idx, D3DDISPLAYMODEEX *mode, D3DDISPLAYROTATION *rotation)
 {
-    FIXME("iface %p, swapchain_idx %u, mode %p, rotation %p stub!\n", iface, swapchain_idx, mode, rotation);
+    struct d3d9_device *device = impl_from_IDirect3DDevice9Ex(iface);
+    struct wined3d_display_mode wined3d_mode;
+    HRESULT hr;
 
-    return E_NOTIMPL;
+    TRACE("iface %p, swapchain_idx %u, mode %p, rotation %p.\n",
+            iface, swapchain_idx, mode, rotation);
+
+    if (mode->Size != sizeof(*mode))
+        return D3DERR_INVALIDCALL;
+
+    wined3d_mutex_lock();
+    hr = wined3d_device_get_display_mode(device->wined3d_device, swapchain_idx, &wined3d_mode,
+            (enum wined3d_display_rotation *)rotation);
+    wined3d_mutex_unlock();
+
+    if (SUCCEEDED(hr))
+    {
+        mode->Width = wined3d_mode.width;
+        mode->Height = wined3d_mode.height;
+        mode->RefreshRate = wined3d_mode.refresh_rate;
+        mode->Format = d3dformat_from_wined3dformat(wined3d_mode.format_id);
+        mode->ScanLineOrdering = wined3d_mode.scanline_ordering;
+    }
+
+    return hr;
 }
 
 static const struct IDirect3DDevice9ExVtbl d3d9_device_vtbl =
diff --git a/dlls/d3d9/swapchain.c b/dlls/d3d9/swapchain.c
index b8439a92e1a..d73e6a8b75b 100644
--- a/dlls/d3d9/swapchain.c
+++ b/dlls/d3d9/swapchain.c
@@ -175,7 +175,7 @@ static HRESULT WINAPI d3d9_swapchain_GetDisplayMode(IDirect3DSwapChain9 *iface,
     TRACE("iface %p, mode %p.\n", iface, mode);
 
     wined3d_mutex_lock();
-    hr = wined3d_swapchain_get_display_mode(swapchain->wined3d_swapchain, &wined3d_mode);
+    hr = wined3d_swapchain_get_display_mode(swapchain->wined3d_swapchain, &wined3d_mode, NULL);
     wined3d_mutex_unlock();
 
     if (SUCCEEDED(hr))
diff --git a/dlls/wined3d/device.c b/dlls/wined3d/device.c
index df648007550..8c01184ef34 100644
--- a/dlls/wined3d/device.c
+++ b/dlls/wined3d/device.c
@@ -3715,17 +3715,18 @@ HRESULT CDECL wined3d_device_get_device_caps(const struct wined3d_device *device
             device->create_parms.device_type, caps);
 }
 
-HRESULT CDECL wined3d_device_get_display_mode(const struct wined3d_device *device,
-        UINT swapchain_idx, struct wined3d_display_mode *mode)
+HRESULT CDECL wined3d_device_get_display_mode(const struct wined3d_device *device, UINT swapchain_idx,
+        struct wined3d_display_mode *mode, enum wined3d_display_rotation *rotation)
 {
     struct wined3d_swapchain *swapchain;
     HRESULT hr;
 
-    TRACE("device %p, swapchain_idx %u, mode %p.\n", device, swapchain_idx, mode);
+    TRACE("device %p, swapchain_idx %u, mode %p, rotation %p.\n",
+            device, swapchain_idx, mode, rotation);
 
     if (SUCCEEDED(hr = wined3d_device_get_swapchain(device, swapchain_idx, &swapchain)))
     {
-        hr = wined3d_swapchain_get_display_mode(swapchain, mode);
+        hr = wined3d_swapchain_get_display_mode(swapchain, mode, rotation);
         wined3d_swapchain_decref(swapchain);
     }
 
diff --git a/dlls/wined3d/swapchain.c b/dlls/wined3d/swapchain.c
index ea6e466bd22..6dbd2d761b3 100644
--- a/dlls/wined3d/swapchain.c
+++ b/dlls/wined3d/swapchain.c
@@ -239,7 +239,7 @@ HRESULT CDECL wined3d_swapchain_get_raster_status(const struct wined3d_swapchain
     if (!QueryPerformanceCounter(&counter) || !QueryPerformanceFrequency(&freq_per_sec))
         return WINED3DERR_INVALIDCALL;
 
-    if (FAILED(wined3d_swapchain_get_display_mode(swapchain, &mode)))
+    if (FAILED(wined3d_swapchain_get_display_mode(swapchain, &mode, NULL)))
         return WINED3DERR_INVALIDCALL;
     if (mode.refresh_rate == DEFAULT_REFRESH_RATE)
         mode.refresh_rate = 60;
@@ -261,14 +261,14 @@ HRESULT CDECL wined3d_swapchain_get_raster_status(const struct wined3d_swapchain
 }
 
 HRESULT CDECL wined3d_swapchain_get_display_mode(const struct wined3d_swapchain *swapchain,
-        struct wined3d_display_mode *mode)
+        struct wined3d_display_mode *mode, enum wined3d_display_rotation *rotation)
 {
     HRESULT hr;
 
-    TRACE("swapchain %p, mode %p.\n", swapchain, mode);
+    TRACE("swapchain %p, mode %p, rotation %p.\n", swapchain, mode, rotation);
 
     hr = wined3d_get_adapter_display_mode(swapchain->device->wined3d,
-            swapchain->device->adapter->ordinal, mode, NULL);
+            swapchain->device->adapter->ordinal, mode, rotation);
 
     TRACE("Returning w %u, h %u, refresh rate %u, format %s.\n",
             mode->width, mode->height, mode->refresh_rate, debug_d3dformat(mode->format_id));
diff --git a/include/wine/wined3d.h b/include/wine/wined3d.h
index 1c6ef150756..5d4111daeee 100644
--- a/include/wine/wined3d.h
+++ b/include/wine/wined3d.h
@@ -2117,8 +2117,8 @@ HRESULT __cdecl wined3d_device_get_creation_parameters(const struct wined3d_devi
 HRESULT __cdecl wined3d_device_get_depth_stencil(const struct wined3d_device *device,
         struct wined3d_surface **depth_stencil);
 HRESULT __cdecl wined3d_device_get_device_caps(const struct wined3d_device *device, WINED3DCAPS *caps);
-HRESULT __cdecl wined3d_device_get_display_mode(const struct wined3d_device *device,
-        UINT swapchain_idx, struct wined3d_display_mode *mode);
+HRESULT __cdecl wined3d_device_get_display_mode(const struct wined3d_device *device, UINT swapchain_idx,
+        struct wined3d_display_mode *mode, enum wined3d_display_rotation *rotation);
 HRESULT __cdecl wined3d_device_get_front_buffer_data(const struct wined3d_device *device,
         UINT swapchain_idx, struct wined3d_surface *dst_surface);
 void __cdecl wined3d_device_get_gamma_ramp(const struct wined3d_device *device,
@@ -2366,7 +2366,7 @@ HRESULT __cdecl wined3d_swapchain_get_back_buffer(const struct wined3d_swapchain
         UINT backbuffer_idx, enum wined3d_backbuffer_type backbuffer_type, struct wined3d_surface **backbuffer);
 struct wined3d_device * __cdecl wined3d_swapchain_get_device(const struct wined3d_swapchain *swapchain);
 HRESULT __cdecl wined3d_swapchain_get_display_mode(const struct wined3d_swapchain *swapchain,
-        struct wined3d_display_mode *mode);
+        struct wined3d_display_mode *mode, enum wined3d_display_rotation *rotation);
 HRESULT __cdecl wined3d_swapchain_get_front_buffer_data(const struct wined3d_swapchain *swapchain,
         struct wined3d_surface *dst_surface);
 HRESULT __cdecl wined3d_swapchain_get_gamma_ramp(const struct wined3d_swapchain *swapchain,