[Bug 91662] New: GPU HANG (with Intel HD 3000) on kernel 4.1.1-040101-generic

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=91662

            Bug ID: 91662
           Summary: GPU HANG (with Intel HD 3000) on kernel
                    4.1.1-040101-generic
           Product: DRI
           Version: XOrg git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: giulio.genovese at gmail.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 117725
  --> https://bugs.freedesktop.org/attachment.cgi?id=117725&action=edit
/sys/class/drm/card0/error

My desktop froze for a handful of seconds and then I found this text in dmesg:
[179129.531308] [drm] GPU HANG: ecode 6:-1:0x00000000, reason: Kicking stuck
semaphore on render ring, action: continue
[179129.531311] [drm] GPU hangs can indicate a bug anywhere in the entire gfx
stack, including userspace.
[179129.531312] [drm] Please file a _new_ bug report on bugs.freedesktop.org
against DRI -> DRM/Intel
[179129.531313] [drm] drm/i915 developers can then reassign to the right
component if it's not a kernel issue.
[179129.531314] [drm] The gpu crash dump is required to analyze gpu hangs, so
please always attach it.
[179129.531315] [drm] GPU crash dump saved to /sys/class/drm/card0/error

I am running Ubuntu 15.04 with the following kernel:
Linux apol1 4.1.1-040101-generic #201507030635 SMP Fri Jul 3 10:38:27 UTC 2015
x86_64 x86_64 x86_64 GNU/Linux

The laptop is connected to a Dell U3011 (2560x1600) through the DisplayPort.
See file attached.

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