Static Library Bindingsįor any application without an existing application profile, there is a set of libraries which, when statically linked to a given application executable, will direct the Optimus driver to render the application using High Performance Graphics. The default value of the setting will be Auto-Select:Integrated. When creating a profile, the user can set the current value for Preferred graphics processor. Users can also create new application profiles for applications which do not already have a profile. NVIDIA delivers its Optimus driver with an initial set of application profiles, for applications that have been tested and verified to run on an Optimus configuration. The value for the Preferred graphics processor attribute may be read-only, which is used by NVIDIA to block the setting from being changed when application or driver constraints exist. Refer to the Global Profile Settings section for more information. The Use global setting value is a 'power' feature which provides a user the ability to override many profiles at a time. The default value is either 1) Integrated or 2) High Performance. If the current value is set to Use global setting, then the default value is also defined within the parentheses. The Preferred graphics processor value will be either 1) Integrated, 2) High Performance, or 3) Use global setting. While the user can alter the current value based on personal preference, the user can also use Restore Defaults to return a profile back to its default settings, which restores each setting to the listed default value. The value shown for this attribute describes the current value and a default value for a given profile. One of the attributes for each profile is Preferred graphics processor. A profile associates an application and one or more executables to a set of attributes that can affect the runtime behavior of the application. Application Profile SettingsĪpplication profiles are accessible from within the NVIDIA Control Panel, under the Manage 3D Settings > Program Settings tab. The user can choose to render using either Integrated or High Performance Graphics. This applies only to that particular application instance. The NVIDIA Optimus driver inserts an item in the mouse right-click context menu which allows the user to override application profile settings for a given application. Note: This mechanism does NOT override any application profile where the Preferred graphics processor setting in the NVIDIA Control Panel is set by NVIDIA as read-only (cannot be changed by the user). It overrides the Global settings for all applications, whether or not they have an associated application profile. This mechanism is used to specify rendering the application using either the Integrated Graphics or the NVIDIA High Performance Graphics. The Forced Rendering Mode mechanism will override all other mechanisms described below.
For example, an OEM may choose to make the system render using only Integrated Graphics when on battery mode. Others have linked this feature to the use of OS power plans. Some OEMs exploit this feature through the use of a physical switch, or a hot key. OEMs are provided mechanisms within the driver to dynamically override standard Optimus rendering behavior, and force graphics rendering for all applications to occur using either Integrated Graphics or High Performance Graphics. The following sections describe each of the methods. Changes to any of the settings for a given application, or set of applications will NOT apply to any running instance of an application, and will take effect only upon subsequent application executions. The rendering device for a given application is determined when the application starts. Global Variable NvOptimusEnablement (new in Driver Release 302).This feature is enabled using the following set of methods, listed in order from highest to lowest precedence: Enabling NVIDIA High Performance Graphics Rendering on Optimus Systems A key feature of Optimus configurations is to support rendering applications using NVIDIA High Performance Graphics while displaying on monitors connected to the Integrated Graphics.
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