Disabling a display refresh process
AssigneeHewlett Packard Enterprise Development LP
InventorsSze Hau Loh, Theodore F. Emerson
Life of this patent
Estimating the term…
Abstract
A method performed by a physical computing system, the method includes disabling a display refresh process of a video controller of the physical computing system if no active display device is connected to the physical computing system. A physical computing system includes a video controller comprising a rendering engine and a display refresh controller; a memory controller connected to a memory; and a display controller to determine whether an active display device is connected to the physical computing system; in which a display refresh process performed by the display refresh controller is disabled when no active display device is connected to the physical computing system.
Claims15
A system, comprising:
- a controller coupled to a video controller to generate a shutdown signal for the video controller to disable a display refresh process;
- and
- a video controller comprising a rendering engine and a display refresh controller, the video controller to continue using the rendering engine to place rendered data into a frame buffer while the display refresh process is disabled.
A method, comprising:
- detecting no active display devices;
- after detecting no active devices, transmitting a shutdown signal to a video controller to disable a display refresh process but maintain a rendering process to place data in a frame buffer;
- detecting an active display device;
- after detecting the active device, ceasing to transmit the shutdown signal and transmitting a display device change signal to the video controller.
A method, comprising:
- generating a control signal using an administrator policy setting;
- disabling, after generating the control signal, a display refresh process performed by a video controller;
- and
- maintaining generation of rendered data that is placed into a frame buffer while the display refresh process is disabled.
Dependencies are inferred from the claim text.