Nouveau - Mar 2016 - [Bug 94728] New: Nouveau doesn't work with Nvidia GTX 960

https://bugs.freedesktop.org/show_bug.cgi?id=94728

            Bug ID: 94728
           Summary: Nouveau doesn't work with Nvidia GTX 960
           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: neilmedics at gmail.com
        QA Contact: xorg-team at lists.x.org

The nouveau driver doesn't seem to work with my GTX 960 card - I'm
getting
"Unknown chipset: NV126" message in the logs. Looks like it's then
falling back
to mesa (gnome-control-center shows graphics as Gallium 0.4 on llvmpipe (LLVM
3.7, 256 bits)). 

I'm on the latest version Fedora 23, although I haven't seen this work
since I
got the card. Output of journalctl -b _COMM=gdm-x-session attached. Let me know
if you need anymore info - many thanks. 


(II) [drm] nouveau interface version: 1.3.1
(EE) Unknown chipset: NV126
(II) [drm] nouveau interface version: 1.3.1
(EE) Unknown chipset: NV126
(II) [drm] nouveau interface version: 1.3.1
(EE) Unknown chipset: NV126
(EE) [drm] Failed to open DRM device for pci:0000:01:00.0: -13
(EE) [drm] Failed to open DRM device for pci:0000:01:00.0: -13

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--- Comment #1 from neilmedics at gmail.com ---
Created attachment 122594
  --> https://bugs.freedesktop.org/attachment.cgi?id=122594&action=edit
Output of ournalctl -b _COMM=gdm-x-session

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Martin Peres <martin.peres at free.fr> changed:

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

--- Comment #2 from Martin Peres <martin.peres at free.fr> ---
Yes, you need a more up-to-date kernel and mesa version. That is to say Linux
4.6 and mesa 11.2 which are not released yet. You will also need to update
linux-firmware.

Maybe rawhide would work for you?

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--- Comment #3 from Ilia Mirkin <imirkin at alum.mit.edu> ---
As you can see, it's falling back to modesetting, as expected. The
xf86-video-nouveau DDX does not support any maxwell GPUs at the moment.

Separately, modesetting isn't able to start up glamor because of the reasons
that Martin pointed out. This means that you'll get swrast when running
applications inside X as well.

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--- Comment #4 from neilmedics at gmail.com ---
Makes sense. Thanks for the quick replies - and the good work in maintaining
nouveau :)

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