[Nouveau] [Bug 99372] New: Nvidia 640M devinit fails

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=99372

            Bug ID: 99372
           Summary: Nvidia 640M devinit fails
           Product: xorg
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
          Assignee: nouveau at lists.freedesktop.org
          Reporter: me at marcel-sander.eu
        QA Contact: xorg-team at lists.x.org

Created attachment 128904
  --> https://bugs.freedesktop.org/attachment.cgi?id=128904&action=edit
vbios.rom

I have a VAIO SVS1511C5E laptop and the nouveau driver is not working in kernel
versions > 3.16 . (3.19 does not work for me)

>From my understanding the ACPI loading of the bios rom fails. I tried other
methods as suggested in many other threads (PROM, PRAMIN), but they also fail.
ACPI loading worked in kernel 3.16.

I attach the vbios.rom copied from a booted 3.16 kernel from
/sys/kernel/debug/dri/1/vbios.rom and a dmesg log showing the error from kernel
4.10rc3.

As a workaround I am able to load nouveau manually in all kernels by providing
the copied vbios.rom as a parameter to the nouveau module.

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