[Pkg-raspi-maintainers] Bug#969287: raspi-firmware: Dual HDMI support for RaspberryPI4

[Diederik de Haas]

On Wed, 6 Jan 2021 14:11:02 -0600 Gunnar Wolf <gwolf at debian.org> wrote:
> The situation has evolved quite a bit since you filed the bug, and
> having both newer firmware and kernel versions, I wouldn't be
> surprised if this issue managed to fix itself. I understand (but don't
> know for sure) advances have been made regarding vc4 support in
> mainline Linux.
> 
> So, do you still have this behavior? Have you (or has anybody else)
> been able to get dual-screen support on your RPi4? Or do you have any
> promising pointers on this?

Making sure the submitter receives the the reply/request for info.

https://raspi.debian.net/daily/raspi_4_bullseye.img.xz will give you the 
latest in terms of firmware and kernel.
The 'tested' Bullseye image contains the latest firmware and a 5.10 kernel, 
which is important, but not the most recent kernel (5.10.24-1 vs 5.10.40-1).
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