Will DSI -> HDMI show the boot screen at startup?

DMårt · ‎2025-06-08

The DSI can be transformed to HDMI using the ADV7535BCBZ chip.

My question is: Will I be able to see the boot screen at startup directly when the HDMI is plugged in and Linux is booting? Or must Linux start the DSI later after the booting process?

This is for the STM32MP257FAK.

STM32MP151AAC3 custom board with STM32-OS as operating system: https://github.com/DanielMartensson/STM32-Computer

STM32MP257FAK3 custom board with STM64-OS as operating system: https://github.com/DanielMartensson/STM64-Computer

PPAGE.13 · ‎2025-06-18

Hi,

if HDMI is plugged at startup, there will be no "ST" splash screen during uboot.

Philippe.

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