[Nouveau] [Bug 88514] New: X segfaults when using prime offloading to nouveau card

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=88514

            Bug ID: 88514
           Summary: X segfaults when using prime offloading to nouveau
                    card
           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: aidan at jmad.org
        QA Contact: xorg-team at lists.x.org

Created attachment 112362
  --> https://bugs.freedesktop.org/attachment.cgi?id=112362&action=edit
demsg from crash.

I am running Arch Linux, and I used to be able to use my discrete graphics card
for games using the method described below, but a while ago that stopped
working, I believe after an update of nouveau and/or the kernel.

I have:
00:02.0 VGA compatible controller: Intel Corporation 4th Gen Core Processor
Integrated Graphics Controller (rev 06)
01:00.0 VGA compatible controller: NVIDIA Corporation GK107M [GeForce GT 750M]
(rev a1) with nouveau drivers.

Steps to reproduce:
I run xrandr --setprovideroffloadsink nouveau Intel at the startup of my
desktop (cinnamon). Then I run DRI_PRIME=1 glxinfo (or any other openGL
application that I've tried (glxgears, Civ V)), and X crashes and bring me back
to my display manager (lightdm).

Is there any other info you need, and/or did I report this issue completely
wrong?

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