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[Kai-Chuan Hsieh <2111684@xxxxxxxxxxxxxxxxxx>]

@yukine8 @vinegere

Sorry for corrupting your system.

Propose a different approach proposed by [1]?

If it is okay, would please have it a try?

Here is the test package:
https://launchpad.net/~kchsieh/+archive/ubuntu/verification

libpciaccess 0.17-3ubuntu0.24.04.3~oem1

Thanks,

[1]
https://gitlab.freedesktop.org/xorg/lib/libpciaccess/-/merge_requests/38

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https://bugs.launchpad.net/bugs/2111684

Title:
  [SRU] Xorg AMD platform A + N config selected wrong primary GPU

Status in OEM Priority Project:
  New
Status in libpciaccess package in Ubuntu:
  Fix Released
Status in libpciaccess source package in Noble:
  Triaged
Status in libpciaccess source package in Oracular:
  Won't Fix
Status in libpciaccess source package in Plucky:
  Triaged
Status in libpciaccess source package in Questing:
  Fix Released

Bug description:
  [ Impact ]

   * On AMD platform with Nvidia dGPU, if the iGPU is not VGA compatible. and pci order is later than NV
   * The system will select Nvidia as the primary GPU, which is wrong on AMD platform.

  [ Test Plan ]

   * On AMD (StrixPoint or KrakanPoint) platform with Nvidia dGPU

   * Check the renderer by $ xrandr -display <display name>
  --listproviders

   * Provider 0 should be AMD graphic

  [ Where problems could occur ]

   * If Nvidia dGPU is VGA compatible and the boot_vga is set, the
  system still select Nvidia as the primary GPU.

   * If the platform AMD graphic card acpi companion is not configured
  in the BIOS, the system still select Nvidia as the primary GPU.

  [ Other Info ]

   * Upstream MP:
  https://gitlab.freedesktop.org/xorg/lib/libpciaccess/-/merge_requests/37

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