Bug#1125275: mutter: Black screen on an HDMI monitor after loading Gnome Wayland session on a laptop with AMD Radeon graphics

[Nazarii Kretovych]

I've noticed that the official Git repository of the "mutter" package has a
commit that could be related to the issue. I assume that commit was not
included in the current mutter package Debian Trixie has because it was
created after the commit with tag 48.7.

https://gitlab.gnome.org/GNOME/mutter/-/commits/gnome-48

Commit message:
wayland/dma-buf: Fix direct scanout on drivers without explicit modifiers.

https://gitlab.gnome.org/GNOME/mutter/-/commit/c1a0433aa4419520177e23178211993f1dbb0341
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