[Nouveau] [Bug 76475] [NVE7] fails to load due to unknown opcode 0x80 (incorrect vbios)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=76475

--- Comment #7 from patrick.clara at gmail.com ---
> Unfortunately the VBIOS from the PCIROM is often the wrong one. The data
> here is the x86 opcodes instead of the vbios opocdes. And as you observed,
> we now consider unknown opcodes an error. (The init tables need to be run on
> e.g. resume, and if it's a secondary card, on load as well.)

I have read many times on the internet about PCIROM providing wrong bios. I
have tried various methods of getting one but all failed or provided the
exactly same bios as PCIROM. Vbtracetool freezes. Also nvclock fails.

> An mmiotrace of the blob loading would potentially be helpful, you can send
> one (compressed... xz -9 works well) to mmio.dumps at gmail.com.

I have sent one. I used blob version 331.49. During the trace I have loaded the
nvidia module and started X. I did it with a ubuntu live cd with kernel 3.13
since on my debian installation I m not able to launch X anymore. Hopefully I
did it right.

> Can you provide a bit more info about this system? Is it an optimus setup?
> Could you provide an acpidump?

The macine is an ASUS ZENBOOK UX51VZH, the version with the 2880x1620 display.
It appears to have only the nvidia gpu, or at least the intel one in the
i7-3632QM is permanently disabled.

I have attached lspci dmidecode and an acpidump.

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