[Nouveau] [Bug 78439] New: Display corruption when DP connector is reattached

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=78439

          Priority: medium
            Bug ID: 78439
          Assignee: nouveau at lists.freedesktop.org
           Summary: Display corruption when DP connector is reattached
        QA Contact: xorg-team at lists.x.org
          Severity: normal
    Classification: Unclassified
                OS: All
          Reporter: andrius at stikonas.eu
          Hardware: Other
            Status: NEW
           Version: unspecified
         Component: Driver/nouveau
           Product: xorg

Created attachment 98687
  --> https://bugs.freedesktop.org/attachment.cgi?id=98687&action=edit
dmesg

When I unplug and replug DP connector the screen becomes corrupted (until I
restart X).

I attached dmesg file. At 266s I plug DP connector, so that part of dmesg
corresponds to screen corruption. Then at 386s I restart X, so that part
corresponds to the working state.

I suppose nouveau DDX is doing something wrong because this only happens with
X. E.g. everything is fine if I start Wayland.

I'm running:
Linux kernel:        3.14.1
xf86-video-nouveau:    1.0.10
xorg-server:        1.15.0

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