debcrafters-packages team mailing list archive

[Sebastien Bacher <2111480@xxxxxxxxxxxxxxxxxx>]

> The mesa-amber build for noble is missing i386
(https://launchpad.net/ubuntu/+source/mesa-
amber/21.3.9-0ubuntu3~24.04.1):

The i386 build has been enabled now

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https://bugs.launchpad.net/bugs/2111480

Title:
  Backport packages for 24.04.3 HWE stack

Status in directx-headers package in Ubuntu:
  Invalid
Status in glslang package in Ubuntu:
  Invalid
Status in llvm-toolchain-20 package in Ubuntu:
  Invalid
Status in mesa package in Ubuntu:
  Invalid
Status in mesa-amber package in Ubuntu:
  Invalid
Status in spirv-headers package in Ubuntu:
  Invalid
Status in spirv-llvm-translator-20 package in Ubuntu:
  Invalid
Status in spirv-tools package in Ubuntu:
  Invalid
Status in wayland-protocols package in Ubuntu:
  Invalid
Status in directx-headers source package in Noble:
  Fix Committed
Status in glslang source package in Noble:
  Fix Committed
Status in llvm-toolchain-20 source package in Noble:
  Deferred
Status in mesa source package in Noble:
  Fix Committed
Status in mesa-amber source package in Noble:
  Fix Committed
Status in spirv-headers source package in Noble:
  Fix Committed
Status in spirv-llvm-translator-20 source package in Noble:
  Deferred
Status in spirv-tools source package in Noble:
  Fix Committed
Status in wayland-protocols source package in Noble:
  Fix Committed

Bug description:
  [Impact]
  The graphics HWE stack from plucky needs to be backported for 24.04.3

  directx-headers
  - backport from plucky
  - bumped build-dep of mesa

  glslang
  - backport from plucky
  - required due to updated spirv-tools

  spirv-headers
  - backport from plucky
  - build-dep of new spirv-tools

  spirv-tools
  - backport from plucky
  - has a bugfix that the intel shader compiler needs
  - NOTE! the current version in noble FTBFS even without any updates enabled, but this version builds, hence the full backport instead of just patching the current one

  wayland-protocols
  - bumped build-dep of mesa
  - note: this is NOT the version from plucky, which would require a newer wayland
    as well, but instead the oldest update to make mesa happy

  mesa-amber
  - libglapi library got merged in mesa-libgallium but it can't be directly used
    by external dependencies, so instead we'll have mesa-amber build libglapi-
    amber which Provides libglapi-mesa

  mesa
  - new major release, last of the series (25.0.7) so it has accumulated all
    the fixes upstream considered worthy for it
  - new HW support, bugfixes

  [Test case]

  We want to cover at least 2-3 different, widely used and already previously supported GPU generations from both AMD and Intel which are supported by this release, as those are the ones that cover most bases; nouveau users tend to switch to the NVIDIA driver after installation. No need to test ancient GPU's supported by mesa-amber. And best to focus on the newer generations (~5y and newer) as the older ones are less likely to break at this point.
  - AMD: Vega, Navi1x (RX5000*), Navi2x (RX6000*), Navi3x (RX7000*)
  - Intel: gen9 (SKL/APL/KBL/CFL/WHL/CML), gen11 (ICL), gen12 (TGL/ADL/RKL/RPL/DG2)

  Install the new packages and run some tests:
  - check that the desktop is still using hw acceleration and hasn't fallen back to swrast/llvmpipe
  - run freely available benchmarks that torture the GPU (Unigine Heaven/Valley/Superposition)
  - run some games from Steam if possible

  mesa-amber:
  - install libgl1-amber-dri, check that libglapi-amber gets installed and there
    are no conflicts
  - ideally, test also on gen4/gen5 Intel GPU's that things still work
  - test that src:primus builds and binaries install without changes

  and in each case check that there is no gfx corruption happening or
  worse.

  Also test WebGL on a browser like Firefox/Chromium
  - open https://webglsamples.org and run some demos

  Note that upstream releases have already been tested for OpenGL and
  Vulkan conformance by their CI.

  [Where things could go wrong]
  This is a major update of Mesa, there could be regressions but we'll try to catch any with testing. And since it shares bugs with plucky, we'd already know if there are serious issues.

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