[Bug 99372] New: Nvidia 640M devinit fails

[Bug 99372] New: Nvidia 640M devinit fails

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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-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
          Reporter: me-V++FmNMs79yAgvX28Wk5yQ@public.gmane.org
        QA Contact: xorg-team-go0+a7rfsptAfugRpC6u6w@public.gmane.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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[Bug 99372] Nvidia 640M devinit fails

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

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

--- Comment #1 from ralala <me-V++FmNMs79yAgvX28Wk5yQ@public.gmane.org> ---
Created attachment 128905
  --> https://bugs.freedesktop.org/attachment.cgi?id=128905&action=edit
dmesg.log

4.10rc3

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[Bug 99372] Nvidia 640M devinit fails

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

--- Comment #2 from Ilia Mirkin <imirkin-FrUbXkNCsVf2fBVCVOL8/A@public.gmane.org> ---
Please include an acpidump of your system.

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[Bug 99372] Nvidia 640M devinit fails

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

--- Comment #3 from Ilia Mirkin <imirkin-FrUbXkNCsVf2fBVCVOL8/A@public.gmane.org> ---
Oh, and separately, please include the dmesg of a boot of 4.10-rcN with
nouveau.debug=debug when not specifying the "fixed" vbios.rom explicitly.

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[Bug 99372] Nvidia 640M devinit fails

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

--- Comment #4 from ralala <me-V++FmNMs79yAgvX28Wk5yQ@public.gmane.org> ---
Created attachment 128906
  --> https://bugs.freedesktop.org/attachment.cgi?id=128906&action=edit
acpidump

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[Bug 99372] Nvidia 640M devinit fails

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

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

ralala <me-V++FmNMs79yAgvX28Wk5yQ@public.gmane.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
 Attachment #128905|0                           |1
        is obsolete|                            |

--- Comment #5 from ralala <me-V++FmNMs79yAgvX28Wk5yQ@public.gmane.org> ---
Created attachment 128907
  --> https://bugs.freedesktop.org/attachment.cgi?id=128907&action=edit
dmesg.log

4.10rc3

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[Bug 99372] Nvidia 640M devinit fails

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

--- Comment #6 from Ilia Mirkin <imirkin-FrUbXkNCsVf2fBVCVOL8/A@public.gmane.org> ---
OK, so ... similar issue as before - it creates a temporary buffer sized to the
incoming argument's size, and THEN truncates the size argument. Great.... so we
just get the first 4K back with the "fast acpi" method. However at that point,
the checksum really oughtn't match. But I don't see the "checksum failed"
message. So it does match? Or somehow the second bogus image increases the
score to 4? Not sure...

Method (_ROM, 2, NotSerialized)  // _ROM: Read-Only Memory
{
    Local0 = Arg0
    Local1 = Arg1
    Name (VROM, Buffer (Local1)
    {
         0x00                                             /* . */
    })
    If (Local1 > 0x1000)
    {
        Local1 = 0x1000
    }

    If (Arg0 > RVBS)
    {
        Return (VROM) /* \_SB_.PCI0.PEG0.PEGP._ROM.VROM */
    }

    Local2 = (Arg0 + Arg1)
    If (Local2 > RVBS)
    {
        Local1 = (RVBS - Local0)
    }

    If (Local0 < 0x8000)
    {
        Mid (VBS1, Local0, Local1, VROM) /* \_SB_.PCI0.PEG0.PEGP._ROM.VROM */
    }
    Else
    {
        Local0 -= 0x8000
        If (Local0 < 0x8000)
        {
            Mid (VBS2, Local0, Local1, VROM) /* \_SB_.PCI0.PEG0.PEGP._ROM.VROM
*/
        }
        Else
        {
            Local0 -= 0x8000
            If (Local0 < 0x8000)
            {
                Mid (VBS3, Local0, Local1, VROM) /*
\_SB_.PCI0.PEG0.PEGP._ROM.VROM */
            }
            Else
            {
                Local0 -= 0x8000
                If (Local0 < 0x8000)
                {
                    Mid (VBS4, Local0, Local1, VROM) /*
\_SB_.PCI0.PEG0.PEGP._ROM.VROM */
                }
            }
        }
    }

    Return (VROM) /* \_SB_.PCI0.PEG0.PEGP._ROM.VROM */
}

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[Bug 99372] Nvidia 640M devinit fails

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

--- Comment #7 from Ilia Mirkin <imirkin-FrUbXkNCsVf2fBVCVOL8/A@public.gmane.org> ---
Looking through the code, the checksum must be passing. This is surprising.

(a) The returned data is not all 0's, e.g. the bios version is there, etc. [All
0's *would* pass the checksum test.]
(b) The checksum fails for the first 0x1000 bytes being returned.

Something even more nefarious must be going on...

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[Bug 99372] Nvidia 640M devinit fails

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

Martin Peres <martin.peres-GANU6spQydw@public.gmane.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |MOVED
             Status|NEW                         |RESOLVED

--- Comment #8 from Martin Peres <martin.peres-GANU6spQydw@public.gmane.org> ---
-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been
closed from further activity.

You can subscribe and participate further through the new bug through this link
to our GitLab instance:
https://gitlab.freedesktop.org/xorg/driver/xf86-video-nouveau/issues/314.

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