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[Timo Aaltonen <2127944@xxxxxxxxxxxxxxxxxx>]

** Changed in: libdrm (Ubuntu Noble)
       Status: New => In Progress

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https://bugs.launchpad.net/bugs/2127944

Title:
  Identify APUs from hardware

Status in libdrm package in Ubuntu:
  Fix Released
Status in libdrm source package in Noble:
  In Progress
Status in libdrm source package in Plucky:
  Won't Fix
Status in libdrm source package in Questing:
  In Progress
Status in libdrm source package in Resolute:
  Fix Released

Bug description:
  [Impact]
  libdrm has an interface that is used by a variety of software (such as GNOME about dialog, nvtop, rocminfo etc) to describe the GPU connected to the system.

  libdrm by default will try to match an AMD GPU to lines in amdgpu.ids.
  If there is no match it will fall back to "Radeon Graphics".

  This is a constant game of cat and mouse because every single SKU of a
  new product needs a line added.

  On APUs this is unnecessary though.  The string that comes from
  /proc/cpuinfo describing the model comes from the hardware itself.

  A change has been made in upstream libdrm that will fall back to this
  string when working on an APU and nothing is found in amdgpu.ids file.

  [Where problems could occur]
  Problems would be localized to exposing the strings that came from /proc/cpuinfo.

  [Test Plan]
  * Verify dGPU string in amdgpu.ids shows up properly in GNOME / Settings / About
  * Verify on an unknown APU string matches substring from /proc/cpuinfo in GNOME / Settings / About (or modify amdgpu.ids locally to prove this out).

  [Other Info]
  Actual patches: https://gitlab.freedesktop.org/mesa/libdrm/-/commit/2c1d39eff8b9c8296b57212bffd031029ce74491
  https://gitlab.freedesktop.org/mesa/libdrm/-/commit/90656fc8e4150fc175ddadb788912674b2c4a705
  https://gitlab.freedesktop.org/mesa/libdrm/-/commit/871e326ac799ae28ee4d98da9025028050c085cd

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