Switching display update properties upon detecting a power management event
First Claim
Patent Images
1. A method comprising:
- detecting a power management event;
selecting a policy from a plurality of power management policies, wherein the selected policy matches the power management event; and
changing a display update property for a video display in response to the power management event, the display update property comprising at least one of a screen resolution or a pixel depth, wherein changing the display update property includes changing the display update property in accordance with the selected policy.
2 Assignments
0 Petitions
Accused Products
Abstract
Systems and methods provide automatic switching of display update properties such as screen resolution, pixel depth, and refresh rate in response to a power management event. The display update property may be decreased when power is switched from AC power to DC power, for example, when the system is unplugged from a wall outlet and is running on battery power.
-
Citations
19 Claims
-
1. A method comprising:
-
detecting a power management event; selecting a policy from a plurality of power management policies, wherein the selected policy matches the power management event; and changing a display update property for a video display in response to the power management event, the display update property comprising at least one of a screen resolution or a pixel depth, wherein changing the display update property includes changing the display update property in accordance with the selected policy. - View Dependent Claims (2, 3, 4, 5)
-
-
6. A system comprising:
-
a processor; a graphics controller coupled to the processor; and a frame buffer coupled to the graphics controller, said frame buffer having a size corresponding to a screen resolution and a pixel depth; wherein the processor is operable to; detect a power management event; select a policy from a plurality of power management policies, wherein the selected policy matches the power management event, and change the screen resolution in response to the power management event, wherein the processor is operable to change the screen resolution in accordance with the selected policy. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14)
-
-
15. A machine-readable medium having machine executable instructions for performing a method comprising:
-
detecting a power management event; selecting a policy from a plurality of power management policies, wherein the selected policy matches the power management event; and changing a display update property for a video display in response to the power management event, the display update property comprising at least one of a screen resolution or a pixel depth, wherein changing the display update property includes changing the display update property in accordance with the selected policy. - View Dependent Claims (16, 17, 18, 19)
-
Specification