debcrafters-packages team mailing list archive

[Kai-Chuan Hsieh <2111684@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

[ 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

** Affects: oem-priority
     Importance: Undecided
         Status: New

** Affects: libpciaccess (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: jira-somerville-2213 oem-priority

** Tags added: jira-somerville-2213 oem-priority

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Debcrafters packages, which is subscribed to libpciaccess in Ubuntu.
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:
  New

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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