[Bug 40336] New: Nouveau: Kernel oops when unplugging external monitor

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ@public.gmane.org]

https://bugs.freedesktop.org/show_bug.cgi?id=40336

           Summary: Nouveau: Kernel oops when unplugging external monitor
           Product: xorg
           Version: unspecified
          Platform: Other
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
        AssignedTo: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
        ReportedBy: marco-w08N04152XNe4xh82S9ftw@public.gmane.org
         QAContact: xorg-team-go0+a7rfsptAfugRpC6u6w@public.gmane.org


Created an attachment (id=50518)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=50518)
lspci

Hi everybody.

I encountered a bug that is kind of annoying. It is my first bug report, so
please be patient. ;) When I use an external monitor and either
(a) just unplug the cable or
(b) change the xrandr settings and use ctrl-alt f1 to get a terminal
the screen stays black. Fortunately, I could save the log files with the help
of a ssh session.

I use a GeForce Go 7300. The command sequence is the following:
* To use the monitor: xrandr --output VGA-1 --auto --right-of LVDS-1
* To deactivate the monitor: xrandr --output VGA-1 --off

The problems also occurs when I use a much smaller monitor.

I attached all the log files (dmesg, /var/log/messages, kernel configs ...).
Because I am abroad and this computer is my only way to work here, I try to
avoid using the current git HEAD of nouveau.

# uname -a
Linux samson 3.0.1-gentoo #1 SMP Fri Aug 12 09:59:57 IDT 2011 i686 Intel(R)
Core(TM)2 CPU T5600 @ 1.83GHz GenuineIntel GNU/Linux

I use mesa-7.11, libdrm-2.4.26, and xf86-video-nouveau-0.0.16_pre20110801,
xorg-server-1.10.2

I am very eager to help fixing this bug.

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