https://bugs.freedesktop.org/show_bug.cgi?id=106772

            Bug ID: 106772
           Summary: Xorg crashes with nouveau and dual screen setup
           Product: xorg
           Version: unspecified
          Hardware: Other
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
          Assignee: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
          Reporter: bircoph-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
        QA Contact: xorg-team-go0+a7rfsptAfugRpC6u6w@public.gmane.org

Created attachment 139910
  --> https://bugs.freedesktop.org/attachment.cgi?id=139910&action=edit
gdb.log

Hi!

I tried Nouveau (xorg-dri-nouveau-18.1.0 from mesa 18.1.0 and
xorg-drv-nouveau-1.0.15) with the latest xorg-1.20 and dual monitors. With
single screen and xinerama it works fine, with dual screens (w/o xinerama) it
segfaults, see log below.

I want to use separate X screens, since monitors have sufficiently different
DPI and color temp and Xinerama doesn't allow different DPI on different
monitors.

Kernel in use is 4.6.13 with nouveau built as module.

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