Information handling system display and charger management in multiple device scenarios

1. An information handling system comprising:

a processor operable to process information with instructions;

a memory interfaced with the processor and operable to store the information and instructions;

a graphics processor interfaced with the processor and operable to convert the information into display values that define a visual image for presentation at a display;

a communications controller interfaced with the graphics processor and operable to communicate the display information to a peripheral display for presentation of the visual image, the communications controller further operable to communicate power with the peripheral display;

a peripheral display having plural communication ports, a charger and a controller, the peripheral display operable to present the display information received through the communications ports as the visual images and to provide power from the charger through one or more of the communications ports;

a display selector stored in non-transitory memory of the peripheral display that when executed on the controller detects if plural display cables couple to the plural communications ports and in response selects one of the plural display cables as the primary display cable, presents visual images at the display of display information communicated through the primary display cable and presents a display source selection window at the display that accepts an end user display selection to override presentation of the primary display cable;

a display manager stored in non-transitory memory that when executed on the processor communicates a mobile device indicator to the display selector, the display selector in response defaulting the information handling system to a lower display priority at the peripheral display.

2. The information handling system of claim 1 wherein the display selector when executed on the controller further:

stores an end user display selection at the display source selection window; and

applies the stored end user display selection as a default at a subsequent detection of plural display cables coupled to the display.

3. The information handling system of claim 1 wherein the communications controller coordinates power transfer from the display charger through the display cable, the display selector in response defaulting the information handling system to a lower display priority at the peripheral display.

4. The information handling system of claim 1 wherein the communications controller comprises a USB Type C controller.

5. The information handling system of claim 1 wherein the display selector is further operable to forward display information received at a first of the plural display communications ports that is not presented at a display to a second of the plural display communications ports for communication to a second information handling system that is presenting display information at the display.

6. The information handling system of claim 5 wherein the second information handling system includes the forwarded display information in the presented display information.

7. The information handling system of claim 1 wherein the display selector presents an image at the display having a depiction of each of the plural communications ports and highlighting which of the plural communications ports are receiving display information.

8. A method for presenting information at a peripheral display, the method comprising:

interfacing a first information handling system with a first port of the display;

sending first display information to the first port of the display;

presenting the first display information as visual images at the display;

interfacing a second information handling system with a second port of the display;

in response to interfacing a second information handling system, defaulting at the display to presentation of display information from one of the first and second information handling systems based at least in part upon whether the first and second information handling systems request a charge from a charger of the display;

in response to interfacing a second information handling system, presenting a display source selection user interface at the display; and

accepting an end user display source selection through the display source selection user interface to present display information from a selected of the first or second information handling system.

9. The method of claim 8 , further comprising:

storing at the peripheral display a port priority by port type; and

in response to interfacing a second information handling system, presenting second display information of the second information handling system if the second port has a type of higher priority than the first port.

10. The method of claim 9 wherein the port types include USB Type C as the lowest priority of the port types.

11. The method of claim 8 further comprising:

timing presentation of the display source selection user interface; and

removing the display source selection user interface after a predetermined time.

12. The method of claim 8 wherein the response to interfacing a second information handling system, presenting a display source selection user interface further comprises:

presenting an icon depicting each display port by port type; and

indicating at each icon a status associated with each display port.

13. The method of claim 8 further comprising:

communicating second display information from the second information handling system to the first information handling system; and

including the second display information in the first display information to present the second display information at a portion of the display.

14. The method of claim 8 further comprising:

storing at the peripheral display the end user display source selection; and

in response to a subsequent interfacing of a second information handling system, defaulting to presentation of display information by the stored display source selection.

15. The method of claim 8 further comprising:

in response to interfacing a second information handling system, retrieving an information handling system type from the second information handling system; and

comparing the information handling system type of the second information handling system against an information handling system type of the first information handling system to select one of the first or second information handling system display information for presentation at the peripheral display.

16. A peripheral display device comprising:

a controller operable to execute instructions;

plural ports, each port operable to accept a display cable communicating display information that defines visual images for presentation at a display panel;

a charger interfaced with at least one of the plural ports and operable to provide power to an external information handling system; and

a display selector stored in non-transitory memory that when executed on the controller:

detects first and second information handling systems interfaced with first and second of the plural ports;

selects display information from one of the first or second information handling systems for presentation as visual images based upon one or more predetermined conditions; and

presents a display source selection user interface that accepts an end user command to override the selected display information by presenting the display information of the other of the first or second information handling systems for presentation as visual images;

wherein the one or more predetermined conditions comprise a charge request communicated from one of the first and second information handling systems, the charge request applied as a lower priority for presenting visual images.

17. The peripheral display of claim 16 wherein the one or more predetermined conditions comprise an information handling system type communicated from each of the first and second information handling systems.

18. The peripheral display of claim 16 wherein the display selector further:

stores a display source selection by an end user at the display source selection user interface; and

applies the stored display source selection as a predetermined condition.