[afedchin]

If you can tell how, sure. Finding out seems a real bitch.

Run dxdiag. Then look at Driver Model in section Drivers at Display tab. I'm wrong and video rendering/decoding with DX11 requires WDDM1.1 drivers.

The win7 computer with NIVIA GTX275 using the \ key for switching fullscreen mode switches my screen to a lower res.
http://pastebin.com/jTJcicqk

CWinSystemWin32::SetFullScreen (windowed) on screen 0 with size 635x374, refresh 0.000000

Using new build from this morning

Hm. From the log file I can see what you switched from true full-screen ([email protected]) to windowed mode with windows size 635x374. Firstly, DXGI switches to windowed mode

Code:

18:26:23 T:3652   DEBUG: CApplication::OnKey: backslash (0xf05c) pressed, action is ToggleFullScreen
18:26:23 T:3652   DEBUG: CRenderSystemDX::SetFullScreenInternal - Switching swap chain to windowed mode.

DXGI should restore native screen resolution (this is internal DXGI behavior). Then window is resized to requiested size

Code:

18:26:24 T:3652   DEBUG: CWinSystemWin32::ResizeInternal - resizing due to size change (0,0,1280,1024 fullscreen)->(366,191,1017,603)

Then resizes backbuffer to 635x374.

Code:

18:26:24 T:3652   DEBUG: CRenderSystemDX::CreateWindowSizeDependentResources - (Re)Create window size (635x374) dependent resources.

I've checked this part a few times and all works fine for me.