Nouveau - Apr 2016 - [Bug 95193] New: Nouveau not working with Quadro K2200 (NV117) and Debian Wheezy

https://bugs.freedesktop.org/show_bug.cgi?id=95193

            Bug ID: 95193
           Summary: Nouveau not working with Quadro K2200 (NV117) and
                    Debian Wheezy
           Product: xorg
           Version: unspecified
          Hardware: x86 (IA32)
                OS: Linux (All)
            Status: NEW
          Severity: blocker
          Priority: medium
         Component: Driver/nouveau
          Assignee: nouveau at lists.freedesktop.org
          Reporter: joachim at falaba.de
        QA Contact: xorg-team at lists.x.org

LinuxCNC Live CD (Debian Wheezy is the base distribution) hangs with some
Nouveau messages.

Since I'm not allowed to install it on a PC with K2200 in our facility, I
can
just use the LiveCD or USB-Stick with persistence mode. Is it somehow possible
to get a kernel log in this situation?

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--- Comment #1 from Ilia Mirkin <imirkin at alum.mit.edu> ---
You can try the livecd at https://nouveau.pmoreau.org/ which should have a more
up-to-date stack.

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--- Comment #2 from Regular Guy <figyshki at gmail.com> ---
Created attachment 123468
  --> https://bugs.freedesktop.org/attachment.cgi?id=123468&action=edit
Qubes OS 3.1 dmesg output

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--- Comment #3 from Regular Guy <figyshki at gmail.com> ---
Attached "Qubes OS 3.1 dmesg output" for the K1200 case.
OSes tried:
* Qubes OS R3.1 (kernel 4.1.13)
* Fedora Core 23 Live
* OpenSuSe Leap 42.1

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--- Comment #4 from Ilia Mirkin <imirkin at alum.mit.edu> ---
Looks like some sort of issue training the DP link. Can you try a more recent
kernel? A bunch of DP things have been fixed since kernel 4.1.

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--- Comment #5 from Regular Guy <figyshki at gmail.com> ---
@Ilia,

Done. Slapped on Fedora Core 23 (the installer runs 4.2.x kernel, which seems
to have the same issue as its 4.1.x cousins), but upon an update run, kernel
4.4.8-300 was installed, and things work. 

Attached the dmesg output from the 4.4.8-300, for reference. 

The overall goal is to run Qubes OS, so not sure if a later kernel is possible.
Not sure if there's a way to backport 4.4.8's nouveau/drm into a 4.1.3
(probably not, but hey, I can haz hopes?)

Cheers.

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--- Comment #6 from Regular Guy <figyshki at gmail.com> ---
Created attachment 123485
  --> https://bugs.freedesktop.org/attachment.cgi?id=123485&action=edit
Fedora Core 23, kernel 4.4.8-300 output.

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--- Comment #7 from Regular Guy <figyshki at gmail.com> ---
In kernel 4.1.x's output, there are "link training failed"
messages, but in
4.4.x's, there are EDID checksum error messages instead. Wonder if
4.4.x's
version simply handles ASUS' EDID brainfart better than 4.1.x?

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Ilia Mirkin <imirkin at alum.mit.edu> changed:

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

--- Comment #8 from Ilia Mirkin <imirkin at alum.mit.edu> ---
(In reply to Regular Guy from comment #5)
> The overall goal is to run Qubes OS, so not sure if a later kernel is
> possible. Not sure if there's a way to backport 4.4.8's nouveau/drm
into a
> 4.1.3 (probably not, but hey, I can haz hopes?)
Not sure what backport means... like grabbing the 4.4.8 kernel and editing
Makefile to say that the version is 4.1.3? Anyways, this sort of thing isn't
something we tend to worry about -- enough troubles as it is.

Link training and EDID fetch are moderately separate items. I think a number of
changes went into the DP logic to harden it against various things that
monitors do.

Since this is fixed in recent kernels, I'm going to close this.

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