For now most platforms support display function at PEI phase. But the conspliter and graphics console driver would clear the screen at BDS connect console phase. Maybe some platforms would show logo in the next or maybe not. For consumers, it looks like the screen flashed. So change the behavior of graphics console devices while connect console devices to maintain seamless screen from PEI.
Test has done on MinPlatform Kabylake-RVP3 which support PEI display. V2: Make the SetMode not clear the screen only at the first boot during the first conncettion of graphics device. Cc: Jian J Wang <[email protected]> Cc: Hao Wu <[email protected]> Cc: Ray Ni <[email protected]> Cc: Star Zeng <[email protected]> Cc: Liming Gao <[email protected]> Cc: Sean Brogan <[email protected]> Cc: Michael Turner <[email protected]> Cc: Bret Barkelew <[email protected]> Cc: Laszlo Ersek <[email protected]> Aaron Antone (2): MdeModulePkg/ConSplitterDxe: Optimize the ConSplitterTextOutSetMode MdeModulePkg/GraphicsConsoleDxe: Do not clean the screen .../Console/ConSplitterDxe/ConSplitter.c | 34 +++++--- .../Console/ConSplitterDxe/ConSplitter.h | 4 +- .../GraphicsConsoleDxe/GraphicsConsole.c | 82 +++++++++++++------ .../GraphicsConsoleDxe/GraphicsConsoleDxe.inf | 3 + 4 files changed, 88 insertions(+), 35 deletions(-) -- 2.21.0.windows.1 -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#39398): https://edk2.groups.io/g/devel/message/39398 Mute This Topic: https://groups.io/mt/31306533/21656 Group Owner: [email protected] Unsubscribe: https://edk2.groups.io/g/devel/unsub [[email protected]] -=-=-=-=-=-=-=-=-=-=-=-
