A method comprising: rendering and transmitting, by an application processor, display data to a display, the display data being display data for a frame, wherein the display data is stored in a frame buffer of the display for presentation as visual content; causing, by a display manager based on a computing device entering a state of low graphical activity, the application processor to write data to control registers of a low-power processor, wherein the control registers are utilized to coordinate low-power operation of the display between the application processor and the low-power processor, the low-processor has lower processing capabilities than the application processor, wherein said state of low-graphical activity is a mode in which a display refresh-frequency of visual content is decreased; causing, by the display manager based on the computing device entering the state of low graphical activity, the application processor to enter a low-power state; once data is written to the control registers of the low-power processor, transferring, by the display manager, control of the display from the application processor to the low-power processor; and generating and sending to the display, by the low-power processor based on the computing device entering the state of low graphical activity and based on the data stored in the control registers by the application processor, additional display data which is not sufficient to over-write an entire frame of the frame buffer but comprises an updated version of a portion of the visual content, and wherein said additional display data is over-written into the display data of the frame buffer of the display to alter said portion of the visual content of the display. rendering and transmitting, by an application processor, display data to a display, the display data being display data for a frame, wherein the display data is stored in a frame buffer of the display for presentation as visual content; causing, by a display manager based on a computing device entering a state of low graphical activity, the application processor to write data to control registers of a low-power processor, wherein the control registers are utilized to coordinate low-power operation of the display between the application processor and the low-power processor, the low-processor has lower processing capabilities than the application processor, wherein said state of low-graphical activity is a mode in which a display refresh-frequency of visual content is decreased; causing, by the display manager based on the computing device entering the state of low graphical activity, the application processor to enter a low-power state; once data is written to the control registers of the low-power processor, transferring, by the display manager, control of the display from the application processor to the low-power processor; and generating and sending to the display, by the low-power processor based on the computing device entering the state of low graphical activity and based on the data stored in the control registers by the application processor, additional display data which is not sufficient to over-write an entire frame of the frame buffer but comprises an updated version of a portion of the visual content, and wherein said additional display data is over-written into the display data of the frame buffer of the display to alter said portion of the visual content of the display.