Video mode in OGRE Engine Rendering Setup - screen-resolution

Question

I'm trying out OGRE and I'd like to ask a question about the OGRE config dialog.
The dialog which can be opened with Ogre::Root::showConfigDialog(), lists only "800 x 600 # 32-bit colour" for Video Mode, both for "Direct3D9 Rendering Subsystem" and "Direct3D11 Rendering Subsystem".
My question is, why is there only 800x600x32 ? Is there a way to make it list more video modes, like 1024x768x32, 1980x1080x32, etc?
I've tried Google-searching, but the closest thing I got was how to change video mode without the use of the config dialog.
Any help would be appreciated, thank you!
EDIT:
Here's a link to my screenshot of OGRE Engine Rendering Setup dialog, since I don't have enough reputation to upload images.
http://imgur.com/kNDy48E

Answer 1

In general: This list will automatically contain all available video modes reported by the selected rendering API drivers. If you are certain that your current API and drivers should allow more, you could debug the respective _initialise() function, e.g. for D3D11 in OgreD3D11RenderSystem.cpp:
RenderWindow* D3D11RenderSystem::_initialise( bool autoCreateWindow, const String& windowTitle )
Internally, the function D3D11VideoModeList::enumerate() will be used to enumerate all possible values from the driver.
I saw that your GPU uses "NVIDIA Optimus". Did you try to tell NVIDIA to use the correct GPU for your Ogre application? I saw that in the config dialog the GTX is selected, but just to make sure: How to select Optimus GPU.
Also this Optimus policy trick might help:
NVIDIA released Optimus rendering policies guidelines not long ago.
If the user has driver 302 or higher, we can hint the driver to use the dedicated GPU. All we need to do is to export a variable:
extern "C" {
_declspec(dllexport) DWORD NvOptimusEnablement = 0x00000001;
}