[Bug 85472] New: xrandr --off on all display outputs causes X to shutdown

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=85472

            Bug ID: 85472
           Summary: xrandr --off on all display outputs causes X to
                    shutdown
           Product: xorg
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/intel
          Assignee: chris at chris-wilson.co.uk
          Reporter: freedesktop at h.totakura.in
        QA Contact: intel-gfx-bugs at lists.freedesktop.org

Created attachment 108437
  --> https://bugs.freedesktop.org/attachment.cgi?id=108437&action=edit
Xorg log

I have a multi-monitor setup with 3 displays: 2 monitors connected via a DP MST
dock and my notebook's native display.  I also have some udev rules and scripts
which enable/disable displays when I hotplug them.

With linux-3.17.1 with xf86-video-intel-2.99.916 I am observing that X shuts
down normally when the scripts have all the displays disabled (this happens
when the scripts are enabling the native display when the notebook is
undocked).  Someone on IRC pointed me that this is not expected behavior.

In the Xorg, I see the following error message when I undock the notebook and
before the server terminates:
(EE) intel(0): sna_mode_check: invalid state found on pipe 1, disabling CRTC:11

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