[Nouveau] [Bug 55948] New: [nvd9 optimus] drm/nouveau/bios: attempt to fetch entire acpi rom image in one shot breaks module load

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=55948

          Priority: medium
            Bug ID: 55948
          Assignee: nouveau at lists.freedesktop.org
           Summary: [nvd9 optimus] drm/nouveau/bios: attempt to fetch
                    entire acpi rom image in one shot breaks module load
        QA Contact: xorg-team at lists.x.org
          Severity: major
    Classification: Unclassified
                OS: Linux (All)
          Reporter: jano.vesely at gmail.com
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: git
         Component: Driver/nouveau
           Product: xorg

Created attachment 68517
  --> https://bugs.freedesktop.org/attachment.cgi?id=68517&action=edit
kernel log of failed modprobe

modprobe nouveau hangs with repeated message:
nouveau W[   VBIOS][0000:01:00.0] DCB *ver 0x87 unknown (see attached log)

the card is: NVIDIA Corporation GF119 [Quadro NVS 4200M]
on dell Latitude E6420.

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