US 12,444,012 B2
Display pre-operating system content with multiplexer-less discrete thunderbolt
Ken Nicholas, Leander, TX (US); Ivan Guerra, Round Rock, TX (US); William D. Leara, Round Rock, TX (US); and Ahsan Habib, Round Rock, TX (US)
Assigned to Dell Products L.P., Round Rock, TX (US)
Filed by DELL PRODUCTS L.P., Round Rock, TX (US)
Filed on Oct. 24, 2022, as Appl. No. 17/972,505.
Prior Publication US 2024/0135484 A1, Apr. 25, 2024
Prior Publication US 2024/0233063 A9, Jul. 11, 2024
Int. Cl. G06T 1/20 (2006.01); G06F 3/14 (2006.01)
CPC G06T 1/20 (2013.01) [G06F 3/14 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
in response to a power event of an information handling system, setting a discrete graphics processing unit, by a processor, to transmit pre-operating system graphics data to an external display monitor and an internal display panel that is coupled to an integrated graphics processing unit during a boot process;
in response to determining that a hybrid graphics mode is enabled and that a video driver has been loaded during the boot process, switching a source of the pre-operating system graphics data to the internal display panel from the discrete graphics processing unit to the integrated graphics processing unit while keeping the discrete graphics processing unit to transmit the pre-operating system graphics data to the external display monitor allowing the pre-operating system graphics data to be displayed at both the internal display panel and the external display monitor; and
in response to determining that the hybrid graphics mode is not enabled and that the video driver has not been loaded during the boot process, keeping the discrete graphics processing unit to transmit the pre-operating system graphics data to the external display monitor and the internal display panel during the boot process.