Multiple displays on the Raspberry Pi 4

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From: Daniel O'Connor <darius_at_dons.net.au>
Date: Tue, 29 Jul 2025 07:30:56 UTC

Hi all,
Does anyone know if FreeBSD can drive more than 1 display on the RPi4?
I have a small LCD panel connected but it would be nice if I could also drive an external HDMI display.

If I connect it during boot I get the rainbow screen but when FreeBSD runs it only picks up /dev/fb0.

I had a bit of a look at the code but I am not sure how it all comes together so finding a thread to work out what is going on is difficult - any help much appreciated.

Thanks.
--
Daniel O'Connor
"The nice thing about standards is that there
are so many of them to choose from."
-- Andrew Tanenbaum