[Bug 92712] New: DRM crtc adjusted mode mismatch on i915

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=92712

            Bug ID: 92712
           Summary: DRM crtc adjusted mode mismatch on i915
           Product: DRI
           Version: XOrg git
          Hardware: Other
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: treii28 at hotmail.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 119260
  --> https://bugs.freedesktop.org/attachment.cgi?id=119260&action=edit
i915 intel video bios rom dump

I recently upgraded to ubuntu 15.10 from 15.04 and I'm getting a number of
intel1 drm related errors. The first that occurs is an adjusted_mode.crtc_clock
mismatch. It then repeatedly throws SDE/irq errors in the log.

Among other things, the gnome-desktop manager will not start and my virtual-box
drops into guru_meditation mode when it tries to set up the VGA settings.
(since these are both related to the graphics support, I'm assuming they are
related)

syslog and video rom bios attached

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