Subj : Re: tapping into Vaillant Ebus data
To   : Harry Bloomfield Esq
From : Michael Schwingen
Date : Wed Feb 12 2025 20:48:38

On 2025-02-12, Harry Bloomfield Esq <harry.m1byt@outlook.com> wrote:
> Both are working. What I didn't understand, about HDMI, was that the
> display need to be on before the Rpi. Rpi 'talks' to the display, whilst
> setting up, to enquire what the display resolutions it supports. If it
> doesn't get the replay, the Rpi doesn't activate the HDMI output - or at
> least that seems the way it is..

The DDC EEPROM in the monitor *should* be powered by the pi via the HDMI
cable, so having the monitor plugged in should be enough - it does not
have to be powered on.

cu
Michael
--
Some people have no respect of age unless it is bottled.

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