[Nouveau] [Bug 37669] New: [NVAC] problem when disabling external monitor

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=37669

           Summary: [NVAC] problem when disabling external monitor
           Product: xorg
           Version: unspecified
          Platform: Other
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
        AssignedTo: nouveau at lists.freedesktop.org
        ReportedBy: a.reversat at gmail.com
         QAContact: xorg-team at lists.x.org


Created an attachment (id=47232)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=47232)
Dmesg after external monitor disabled

I have a macbook 5,1 with an NVAC card (02:00.0 VGA compatible controller:
nVidia Corporation C79 [GeForce 9400M] (rev b1))

When I unplug my external monitor (plugged through a mini display port -> dvi
adapter) my window manager tries to disable the external screen resulting in my
main screen flickering and being unusable (only the cursor moves).

Attached is the output of dmesg after it has happened (I was still able to
access the machine through ssh).

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