Hi,

On Thu Feb 27, 2025 at 2:30 PM CET, Johannes Schauer Marin Rodrigues wrote:
> Source: mesa
> Version: 25.0.0-1
> Severity: serious
>
> this is a regression from mesa 24.3.4-3. I'm filing with RC severity because
> this affects not only me but also other users on the BananaPI [1] and by

I have a Pine64 PineTab2 (rk3566) which also has an Arm Mali-G52 GPU and
I was NOT able to reproduce the issue. I played the exact same MNT video
in Firefox, but also playing a (local) video in mpv didn't show any
issues. I'm using sway as wayland compositor.

So I looked a bit further into the differences and noticed it's using an
Amlogic A311D SoC. That the bisected commit mentions "Some MTK display
controller drivers" indicates the problem could be in that direction.

But even before reading about the bisected commit, I had a look at the
dts[i] files for BananaPI (``arch/arm64/boot/dts/amlogic/meson-g12b*``).
There was 1 property in particular that I was 'missing' and that was
``mali-supply``, so I'd recommend to test if adding that makes a
difference. See also the example in the DT binding schema:
``Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml``

> preventing mesa from transitioning to testing, downgrading mesa is much easier
> than when having to cherry-pick it from snapshot.d.o.

I'll leave possibly changing the severity up to the maintainer, but I
don't think "making it easier to downgrade" is a valid reason in itself.

You can add a line to sources.list referencing a particular date in the
snapshot.d.o archive and then constructing (and sharing in the MNT
forums) a line/command like this:
``aptitude install <mesa-pkg1>=<24.x> <mesa-pkg2>=<24.x>``

HTH,
  Diederik

> [1] 
> https://community.mnt.re/t/display-flickering-on-pocket-reform-related-to-mesa-25-0-0/3133

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