Intel Corporation

Siddhartha Nath

Siva Ramakrishnan

Kristine M Karnos

Suresh Nukala Kumar

Rama Gopal Musunuri Satyanantha

An electronic data tablet has a controller and transition manager. The controller is to store in a memory of the tablet virtual configuration space information for a peripheral device of a computer, and the transition manager is to control the controller to operate in a first mode and a second mode. The virtual configuration space information is stored in the tablet memory when the first mode is to be switched to the second mode. When the second mode is switched to the first mode, the virtual configuration space information is accessed to control recognition of the peripheral device of the computer without performing a re-scanning operation.

System and method for generating a virtual PCI-type configuration space for a device

Embodiments of systems, apparatuses, and methods for virtualizing a powered-down input/output device are disclosed. In one embodiment, an apparatus includes a storage location and a decoder. The storage location is to store an indication that an input/output device is inaccessible. The decoder is to decode a configuration transaction directed to the input/output device and redirect the configuration transaction to an other target if the contents of the first storage location indicate that the input/output device is inaccessible.

Virtualizing a powered down input/output device

Techniques are described that track the lines and pixels in a frame buffer in the host system that are being modified and transmit these modified scan lines and modified pixel locations to the self refresh display instead of entire contents of the frame buffer. The graphics adapter informs the self refresh display of the modified scan lines or pixel information and then sends the pixel data over the communications channel to the display. Custom codes can be used to identify and transmit modified scan lines and pixels to the self refresh display logic.

Techniques for controlling frame refresh

An electronic device comprises at least two graphics processors, referred to herein as an integrated graphics processor and a discrete graphics processor. In some circumstances, the device may be switched between the integrated graphics processor and the discrete graphics processor. In some embodiments, techniques are implemented to lock temporarily the screen display on the output of a controller while the device executes a switch between graphics processors, thereby eliminating, or at least reducing, the presence of a blank output display on the electronic device. Other embodiments may be described.

Growing community of inventors

Bengaluru, India

Siddhartha Nath