Nouveau - May 2015 - [Bug 90632] New: DRI_PRIME=1 has no effect with GK106M

https://bugs.freedesktop.org/show_bug.cgi?id=90632

            Bug ID: 90632
           Summary: DRI_PRIME=1 has no effect with GK106M
           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: 14mRh4X0r+fd.o at gmail.com
        QA Contact: xorg-team at lists.x.org

Created attachment 116033
  --> https://bugs.freedesktop.org/attachment.cgi?id=116033&action=edit
Xorg.0.log

When running xrandr --listproviders, both nouveau and Intel are listed.
However, after using xrandr --setprovideroffloadsink nouveau Intel, running
DRI_PRIME=1 glxinfo | fgrep "OpenGL vendor" still shows Intel.

dmesg includes the following line:
[   21.537016] nouveau E[     PGR][0000:01:00.0] grctx template channel unload
timeout

Attached are Xorg.0.log, dmesg, and an mmiotrace of glxinfo running through
bumblebee.

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--- Comment #1 from Willem Mulder <14mRh4X0r+fd.o at gmail.com> ---
Created attachment 116034
  --> https://bugs.freedesktop.org/attachment.cgi?id=116034&action=edit
dmesg output

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https://bugs.freedesktop.org/show_bug.cgi?id=90632

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|DRI_PRIME=1 has no effect   |[NVE6] grctx template
                   |with GK106M                 |channel unload timeout

--- Comment #2 from Ilia Mirkin <imirkin at alum.mit.edu> ---
The issue here is with the bringup... the driver doesn't load, which means X
doesn't see it, etc.

[   15.063868] nouveau E[    PBUS][0000:01:00.0] MMIO write of 0x00000004 FAULT
at 0x620018 [ IBUS ]
[   15.149993] nouveau E[    PBUS][0000:01:00.0] MMIO read of 0x00000000 FAULT
at 0x500c30 [ IBUS ]

Not sure if those are (semi-)expected.

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--- Comment #3 from Willem Mulder <14mRh4X0r+fd.o at gmail.com> ---
mmiotrace sent to mmio.dumps at gmail.com

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--- Comment #4 from Ilia Mirkin <imirkin at alum.mit.edu> ---
Please try (a) 4.3-rc6 kernel, (b) 4.3-rc6 kernel booted with
nouveau.config=War00C800_0=1 and see if either of those help. If the latter
helps, please include your 'lspci -vnn -d 10de:' output.

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--- Comment #5 from Willem Mulder <14mRh4X0r+fd.o at gmail.com> ---
Created attachment 119521
  --> https://bugs.freedesktop.org/attachment.cgi?id=119521&action=edit
lspci output

Option b) worked. Attached is the lspci output.

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

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

--- Comment #6 from Martin Peres <martin.peres at free.fr> ---
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